83_FR_332 83 FR 330 - Endangered and Threatened Wildlife and Plants; Threatened Species Status for the Panama City Crayfish

83 FR 330 - Endangered and Threatened Wildlife and Plants; Threatened Species Status for the Panama City Crayfish

DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service

Federal Register Volume 83, Issue 2 (January 3, 2018)

Page Range330-341
FR Document2017-28313

We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on a petition to list the Panama City crayfish (Procambarus econfinae), a semi-terrestrial crayfish species native to Bay County, Florida, as a threatened species under the Endangered Species Act (Act). After review of the best available scientific and commercial information, we find that listing this species is warranted. Accordingly, we propose to list the Panama City crayfish as a threatened species under the Act. If we finalize this rule as proposed, it would extend the Act's protections to this species and add this species to the Federal List of Endangered and Threatened Wildlife (List).

Federal Register, Volume 83 Issue 2 (Wednesday, January 3, 2018)
[Federal Register Volume 83, Number 2 (Wednesday, January 3, 2018)]
[Proposed Rules]
[Pages 330-341]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-28313]


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DEPARTMENT OF THE INTERIOR

Fish and Wildlife Service

50 CFR Part 17

[Docket No. FWS-R4-ES-2017-0061; 4500030113]
RIN 1018-BC14


Endangered and Threatened Wildlife and Plants; Threatened Species 
Status for the Panama City Crayfish

AGENCY: Fish and Wildlife Service, Interior.

ACTION: Proposed rule.

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SUMMARY: We, the U.S. Fish and Wildlife Service (Service), announce a 
12-month finding on a petition to list the Panama City crayfish 
(Procambarus econfinae), a semi-terrestrial crayfish species native to 
Bay County, Florida, as a threatened species under the Endangered 
Species Act (Act). After review of the best available scientific and 
commercial information, we find that listing this species is warranted. 
Accordingly, we propose to list the Panama City crayfish as a 
threatened species under the Act. If we finalize this rule as proposed, 
it would extend the Act's protections to this species and add this 
species to the Federal List of Endangered and Threatened Wildlife 
(List).

DATES: We will accept comments received or postmarked on or before 
March 5, 2018. Comments submitted electronically using the Federal 
eRulemaking Portal (see ADDRESSES, below) must be received by 11:59 
p.m. Eastern Time on the closing date. We must receive requests for 
public hearings, in writing, at the address shown in FOR FURTHER 
INFORMATION CONTACT by February 20, 2018.

ADDRESSES: Document availability: The report upon which this proposed 
rule is based (see SUPPLEMENTARY INFORMATION) is available at http://www.regulations.gov in Docket No. FWS-R4-ES-2017-0061 and on the 
Service's Southeast Region website at https://www.fws.gov/southeast/.
    Comment submission: You may submit comments by one of the following 
methods:
    (1) Electronically: Go to the Federal eRulemaking Portal: http://www.regulations.gov. In the Search box, enter FWS-R4-ES-2017-0061, 
which is the docket number for this rulemaking. Then, in the Search 
panel on the left side of the screen, under the Document Type heading, 
click on the Proposed Rules link to locate this document. You may 
submit a comment by clicking on ``Comment Now!''
    (2) By hard copy: Submit by U.S. mail or hand-delivery to: Public 
Comments Processing, Attn: FWS-R4-ES-2017-0061; U.S. Fish and Wildlife 
Service, MS: BPHC, 5275 Leesburg Pike, Falls Church, VA 22041-3803.
    We request that you send comments only by the methods described 
above. We will post all comments on http://www.regulations.gov. This 
generally means that we will post any personal information you provide 
us (see Public Comments, below, for more information).

FOR FURTHER INFORMATION CONTACT: Catherine Phillips, Field Supervisor, 
U.S. Fish and Wildlife Service, Panama City Ecological Services Field 
Office, 1601 Balboa Avenue, Panama City, FL 32405; telephone 850-769-
0552; facsimile 850-763-2177. Persons who use a telecommunications 
device for the deaf (TDD) may call the Federal Relay Service at 800-
877-8339.

SUPPLEMENTARY INFORMATION: 

Executive Summary

    Why we need to publish a rule. Under the Act, if we determine that 
a species is an endangered or threatened species throughout all or a 
significant portion of its range, we are required to promptly publish a 
proposal in the Federal Register and make a determination on our 
proposal within 1 year. Critical habitat shall be designated, to the 
maximum extent prudent and determinable, for any species determined to 
be an endangered or threatened species under the Act. Listing a species 
as an endangered or threatened species and designations and revisions 
of critical habitat can be completed only by issuing a rule.
    This rule proposes adding the Panama City crayfish (Procambarus 
econfinae) as a threatened species to the List of Endangered and 
Threatened Wildlife in title 50 of the Code of Federal Regulations (50 
CFR 17.11(h)).
    The basis for our action. Under the Act, we may determine that a 
species is an endangered or threatened species based on any of five 
factors: (A) The present or threatened destruction, modification, or 
curtailment of its habitat or range; (B) Overutilization for 
commercial, recreational, scientific, or educational purposes; (C) 
Disease or predation; (D) The inadequacy of existing regulatory 
mechanisms; or (E) Other natural or manmade factors affecting its 
continued existence. We have determined that habitat loss and 
fragmentation from development (Factor A) is the primary threat to the 
Panama City crayfish.

Supporting Documents

    A species status assessment (SSA) team prepared an SSA report for 
the Panama City crayfish. The SSA team was composed of Service 
biologists, in consultation with other species experts. The SSA report 
represents a compilation of the best scientific and commercial data 
available concerning the status of the species, including the impacts 
of past, present, and future factors (both negative and beneficial) 
affecting the species. Maps depicting the historical range and current 
populations are included in the SSA for reference.
    Peer review. We solicited independent peer review of the SSA Report 
by six individuals with expertise in crayfish; aquatic invertebrates, 
population, or landscape ecology; genetics and conservation genetics; 
and/or speciation and conservation biology. We received comments from 
one of the six peer reviewers. The SSA report and other materials 
relating to this proposal can be found on the Service's Southeast 
Region website at https://www.fws.gov/southeast/ and at http://www.regulations.gov under Docket No. FWS-R4-ES-2017-0061.

[[Page 331]]

Information Requested

Public Comments

    We intend that any final action resulting from this proposed rule 
will be based on the best scientific and commercial data available and 
be as accurate and as effective as possible. Therefore, we request 
comments or information from other concerned governmental agencies, 
Native American tribes, the scientific community, industry, or any 
other interested parties concerning this proposed rule. We particularly 
seek comments concerning:
    (1) The Panama City crayfish's biology, range, and population 
trends, including:
    (a) Biological or ecological requirements of the species, including 
habitat requirements for feeding, breeding, and sheltering;
    (b) Genetics and taxonomy;
    (c) Historical and current range, including distribution patterns;
    (d) Historical and current population levels, and current and 
projected trends; and
    (e) Past and ongoing conservation measures for the species, its 
habitat, or both.
    (2) Factors that may affect the continued existence of the species, 
which may include habitat modification or destruction, overutilization, 
disease, predation, the inadequacy of existing regulatory mechanisms, 
or other natural or manmade factors.
    (3) Biological, commercial trade, or other relevant data concerning 
any threats (or lack thereof) to this species and existing regulations 
that may be addressing those threats.
    (4) Additional information concerning the historical and current 
status, range, distribution, and population size of this species, 
including the locations of any additional populations of this species.
    (5) Specific prohibitions and exceptions to those prohibitions that 
may be necessary and advisable for the Panama City crayfish's 
conservation. We intend to publish, as appropriate, a more tailored 
proposed rule with provisions set forth under section 4(d) of the Act 
for public review and comment in the future. Activities we are 
considering for potential exemption under a section 4(d) rule include, 
but are not necessarily limited to, exceptions for:
    (a) Specific soil and vegetation restoration activities that will 
benefit the Panama City crayfish;
    (b) Water quality improvement;
    (c) Genetic and population monitoring;
    (e) Activities that maintain native vegetation near occupied or 
likely to be occupied Panama City crayfish habitat;
    (f) Sustainable silviculture practices that primarily occur 
adjacent to Panama City crayfish habitat and that are implemented 
according to certified best management practices; or
    (g) Any additional activities that should fall under the 4(d) rule.
    Please include sufficient information with your submission (such as 
scientific journal articles or other publications) to allow us to 
verify any scientific or commercial information you include.
    Please note that submissions merely stating support for or 
opposition to the action under consideration without providing 
supporting information, although noted, will not be considered in 
making a determination, as section 4(b)(1)(A) of the Act directs that 
determinations as to whether any species is an endangered or threatened 
species must be made ``solely on the basis of the best scientific and 
commercial data available.''
    You may submit your comments and materials concerning this proposed 
rule by one of the methods listed in ADDRESSES. We request that you 
send comments only by the methods described in ADDRESSES.
    If you submit information via http://www.regulations.gov, your 
entire submission--including any personal identifying information--will 
be posted on the website. If your submission is made via a hardcopy 
that includes personal identifying information, you may request at the 
top of your document that we withhold this information from public 
review. However, we cannot guarantee that we will be able to do so. We 
will post all hardcopy submissions on http://www.regulations.gov.
    Comments and materials we receive, as well as supporting 
documentation we used in preparing this proposed rule, will be 
available for public inspection on http://www.regulations.gov, or by 
appointment, during normal business hours, at the U.S. Fish and 
Wildlife Service, Panama City Ecological Services Field Office (see FOR 
FURTHER INFORMATION CONTACT).

Public Hearing

    Section 4(b)(5) of the Act provides for one or more public hearings 
on this proposal, if requested. Requests must be received by the date 
listed above in DATES. Such requests must be sent to the address shown 
in FOR FURTHER INFORMATION CONTACT. We will schedule public hearings on 
this proposal, if any are requested, and announce the dates, times, and 
places of those hearings, as well as how to obtain reasonable 
accommodations, in the Federal Register and local newspapers at least 
15 days before the hearing.

Peer Review

    In accordance with our joint policy on peer review published in the 
Federal Register on July 1, 1994 (59 FR 34270), and our August 22, 
2016, memorandum updating and clarifying the role of peer review of 
listing actions under the Act, we sought the expert opinions of six 
appropriate specialists regarding the SSA report, which informed this 
proposed rule. We received a response from one of the six peer 
reviewers. The purpose of peer review is to ensure that our listing 
determination is based on scientifically sound data, assumptions, and 
analyses. The peer reviewers have expertise in crayfish biology, 
habitat, and stressors to the species. We invite any additional comment 
from the peer reviewers during this public comment period; these 
comments will be available along with other public comments in the 
docket for this proposed rule.

Previous Federal Action

    In 2010, the Center for Biological Diversity (CBD) petitioned the 
Service to list 404 aquatic, riparian, and wetland species from the 
Southeastern United States under the Act. The Panama City crayfish was 
among these 404 species. On September 27, 2011, the Service published a 
substantial 90-day finding for 374 of the 404 species, including the 
Panama City crayfish, soliciting information about, and initiating 
status reviews for, those species (76 FR 59836). In 2015, CBD filed a 
complaint against the Service for failure to complete a 12-month 
finding for the Panama City crayfish within the statutory timeframe. 
The Service entered into a settlement agreement with CBD to address the 
complaint; the court-approved settlement agreement specified that a 12-
month finding for the Panama City crayfish would be delivered to the 
Federal Register by September 30, 2017. On September 21, 2017, the 
Court approved an extension, allowing the Service to submit this 12-
month finding to the Federal Register no later than December 29, 2017.

Background

    A thorough review of the taxonomy, life history, and ecology of the 
Panama City crayfish (Procambarus econfinae) is presented in the SSA 
report, version 1.0 (Service 2017). The SSA report documents the 
results of our comprehensive biological status review for the Panama 
City crayfish, including an assessment of the potential stressors

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to the species. The SSA report does not represent a regulatory decision 
by the Service on whether the species should be proposed for listing as 
an endangered or threatened species under the Act. It does provide the 
scientific basis that informs that decision, which involves the further 
application of standards within the Act and its implementing 
regulations and policies. The full SSA report can be found on the 
Service's Southeast Region website at https://www.fws.gov/southeast/ 
and at http://www.regulations.gov under Docket No. FWS-R4-ES-2017-0061.

Species Description

    The Panama City crayfish is a small, semi-terrestrial crayfish that 
grows to about 2 inches (in) (50.8 millimeters (mm)) in length (minus 
claws), and is found in south-central Bay County, Florida. The species' 
color pattern consists of a medium dark-brown background color, lighter 
brown mid-dorsal stripe, and darker brown dorsolateral stripes (FWC 
2016, p.1). The Panama City crayfish was first described by Hobbs in 
1942 from Bay County, Panama City, Florida. Currently, the Panama City 
crayfish is classified in the family Cambaridae and is considered a 
valid taxon by the scientific community (Taylor et al. 1996, 2007; 
Integrated Taxonomic Information System 2017). The life history of the 
Panama City crayfish specifically is not well known. Cambarid crayfish 
may live about 2.5 to 3 years (Hobbs 2001, p. 977), with a generation 
period of 2 years. For this family of crayfish, the majority breed more 
than once, with mating among mature yearlings frequent; however, many 
individuals do not become sexually active until late summer or fall. 
Females may produce between 30 and 160 eggs, and have been found with 
eggs and/or young from March through September. Juveniles are most 
frequently found in the summer and have been observed through December, 
so young appear to be produced from at least March through December. 
Juveniles can be carried overland by sheet flow during rainy periods, 
which aids in dispersal (Keppner and Keppner 2002, p. 11).
    Eight crayfish species are known to occur within the range of the 
Panama City crayfish, although only the hatchet crayfish, Procambarus 
kilbyi, and the jackknife crayfish, Procambarus hubbelli, are found in 
the same habitat as the Panama City crayfish and may co-occur with it 
(FWC 2017). The Panama City crayfish is not known to hybridize with 
other species of crayfish.
    Historically, the species inhabited natural and often temporary 
bodies of shallow fresh water within open pine flatwoods and wet 
prairie-marsh communities. However, most of these communities have been 
cleared for residential or commercial development or replaced with 
slash pine plantations. The Panama City crayfish currently is known to 
inhabit the waters of grassy, gently sloped ditches and swales, slash 
pine plantations, utility rights-of-way and a few remnant parcels 
protected under wetland and private easements (FWC 2016, p. 2).
    The highest densities of Panama City crayfish have been recorded in 
areas with little to no shrub or tree cover (FWC 2016, p.2). Suitable 
habitat is normally dominated by herbaceous vegetation. Lowest 
population densities have occurred in small, open sites where shrubs or 
trees were present, or in the furrows between bedding rows in some pine 
plantations (Keppner and Keppner 2005). When encountered in dense titi 
(Cyrilla racemiflora and Cliftonia monophylla) swamps, the species was 
associated with temporarily inundated areas open to the sun with some 
herbaceous vegetation. Such sites may be considered secondary or 
suboptimal habitat for the species. On sites where mixed habitat 
features are present (e.g., partially wooded sites or sites with 
permanent, deep-water ponds), the Panama City crayfish appears to 
select favorable areas dominated by herbaceous vegetation, with shallow 
or fluctuating water levels (FWC 2016, p. 3; Keppner and Keppner 2005).
    The Panama City crayfish relies on particular soil types for burrow 
construction and supporting the herbaceous vegetation; these soil types 
are categorized as core or secondary soils. Core soils provide the best 
substrate to support the species; secondary soils are less ideal but 
still used. The core and secondary soil types that support Panama City 
crayfish within their known range are described in more detail in the 
SSA report (Service 2017, pp. 23-24).
    Panama City crayfish build burrows for shelter and are categorized 
as secondary burrowers, which are normally in surface water when it is 
present on the hydric soils they inhabit (Hobbs 1981). They construct 
burrows that contact the water table as the surface water of their 
habitat recedes, and they occupy burrows when surface water is absent 
or during periods of extreme water temperatures. They emerge from the 
burrows when surface water is present again or water temperatures are 
favorable. It appears that they can survive significant periods of 
drought in their burrows when they can maintain contact with the water 
table. During these dry periods the Panama City crayfish excavates and 
lives in unbranched burrows up to three feet long that extend down to 
the water table, thereby enabling the species to remain adequately 
hydrated and survive (FWC 2016, p. 3).
    Little is known about the specific feeding habits of the Panama 
City crayfish. Observations on Panama City crayfish that were held in 
aquaria spanning 1.5 plus years (Keppner 2014) indicate that they are 
detritivores and herbivores. Specimens were offered dead animal 
material, but they avoided it in favor of processing the substrate for 
particles of prepared fish food and the fresh aquatic vegetation that 
were provided as primary food sources. Herbaceous vegetation likely 
serves as a food source for the Panama City crayfish.
    The Panama City crayfish historically ranged throughout south-
central Bay County, Florida within a 56 square mile area (see Figure 
1). The historical range likely created one population connected by 
core and secondary soils. As urban growth came to Panama City, the 
range became fragmented and isolated patches. Today, the species has 13 
localized populations that can be divided into two distinct groups: The 
western and eastern group. The western group includes 8 separate 
populations and the eastern group includes 5 separate populations. The 
13 populations are described in more detail in the SSA report (Service 
2017, pp. 35-54).

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[GRAPHIC] [TIFF OMITTED] TP03JA18.009

Species Needs and Viability

    The Panama City crayfish needs freshwater wetlands that support 
herbaceous vegetation, which is important to the Panama City crayfish 
for food, shelter, and detritus formation. The species needs core or 
secondary soils to provide the proper sediment structure for burrow 
construction and to support the herbaceous vegetation. The Panama City 
crayfish needs access to groundwater (through burrowing) or surface 
water to prevent desiccation of individuals and populations. The 
species needs both adequate water quality and quantity to fulfill its 
life history.
    We describe the Panama City crayfish's viability by characterizing 
the status of the species in terms of its resiliency (ability of the 
populations to withstand stochastic events), redundancy (ability of the 
species to withstand large-scale, catastrophic events), and 
representation (the ability of the species to adapt to changing 
environmental conditions). Using various time frames and the current 
and projected resiliency, redundancy, and representation, we describe 
the species' level of viability over time. For the Panama City crayfish 
to maintain viability, its populations or some portion thereof must be 
resilient. A number of factors influence the resiliency of Panama City 
crayfish

[[Page 334]]

populations, including the inbreeding coefficient, population 
isolation, and population abundance. Elements of Panama City crayfish 
habitat that determine whether Panama City crayfish populations can 
grow to maximize habitat occupancy influence those factors, thereby 
increasing the resiliency of populations. These demographic and habitat 
factors are discussed here; for each factor, we assigned a condition 
category of high, medium, or low (see Table 1). We evaluated each 
population and assigned it a high, medium, or low condition category 
for each factor, as well as an overall condition.

                                            Table 1--Demographic and Habitat Factors for Panama City Crayfish
                                                                  [Service 2017, p. 64]
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                                             Demographic factors                                            Habitat elements
                              --------------------------------------------------------------------------------------------------------------------------
     Condition  category                         Population                                                                                  Suitable
                                 Inbreeding       isolation      Population        Freshwater quality &        Herbaceous ground cover        habitat
                                 coefficient        (km)          abundance              quantity                                             (acres)
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High.........................          >0.400            <0.5             >51  <33% developed and            easements or ROW with >15              >800
                                                                                unsuitable.                   acres that is managed.
Moderate.....................     0.200-0.400         0.5-2.0           21-50  33-66% developed and          easements or ROW with <=15          100-800
                                                                                unsuitable.                   acres suitable habitat
                                                                                                              that is managed; or timber
                                                                                                              lands.
Low..........................          <0.200              >2            1-20  >66% developed and            no managed lands, habitat              <100
                                                                                unsuitable acres.             currently a titi
                                                                                                              monoculture.
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Population Isolation: Least-cost path distance to nearest population in kilometers.
Population Abundance: Based on population sampling counts from all conducted surveys recorded.
Freshwater Quality & Quantity: Percentage of developed and unsuitable acres within the area supporting each population.
Herbaceous Ground Cover: Includes land with and without easements, size of easements, and management activities.
Suitable Habitat: Acres of undeveloped core and secondary soils within the area supporting each population.

    Inbreeding coefficient: The Panama City crayfish, once connected 
through core and secondary soils within a 56 square mile area, is now 
separated into 13 populations that, when combined, total a 
significantly smaller area than occupied by the historical, 
interconnected population. A recent genetic analysis of population 
differentiation and clustering to assess population structure of the 
Panama City crayfish quantified each population's inbreeding 
coefficient numbers (Duncan et al. 2017). An inbreeding coefficient 
number shows the probability of inheriting two copies of the same 
allele from an ancestor that occurs on both sides of the pedigree. For 
Panama City crayfish populations, the differences in inbreeding 
coefficient numbers likely correspond to patterns of fragmentation from 
urban development and not necessarily from selective pressures 
maintaining adaptive differences. Little work has been done on the 
population genetics of wild crayfish populations. We have no comparison 
for values in crayfish species of expected inbreeding coefficients 
(Duncan et al. 2017), and treat this as a relative measure. Thus, we 
ranked individual populations into three numerically distinct breaks: 
Low when inbreeding coefficients were less than 0.200, moderate when 
they ranked between 0.200-0.400, and high when results were greater 
than 0.400.
    Population isolation: To promote genetic connectivity in Panama 
City crayfish, we must have an understanding of their potential 
abilities to move between populations. One working hypothesis was that 
ditches within the range promote movement, especially during flooding 
events. This idea is supported by observations of some localized 
movements of Panama City crayfish into previously unoccupied ditches 
after recent flooding where they were not seen in these new locations 
during the next sampling event.
    Because the landscape occupied by the Panama City crayfish is 
spatially heterogeneous, it is important to understand how certain 
landscape features affect the species' ability to move in order to meet 
requirements for foraging, migration, or other movement-dependent 
processes (Crooks and Sanjayan 2006 as cited in Duncan et al. 2017). We 
relied on a landscape ``Least Cost Path'' land cover analysis conducted 
by Duncan et al. (2017) to assist in determining what may affect 
genetic connectivity in Panama City crayfish and inform our 
understanding of population isolation.
    Population abundance: The size of an individual population coupled 
with age and sex classifications can be used as an indicator of 
resiliency. Within the SSA report, we have summarized the years that 
surveys of varying levels were completed within each population. The 
protocol currently used for PCC monitoring typically depends on dip-net 
sampling when sufficient surface water is present and nondestructive 
evaluation of crayfish burrows. The protocol can miss specimens in 
vegetation and does not sample individuals living below ground in 
burrows, and we currently do not have an estimate of detection 
probability using this protocol. The protocol is quantitative and 
results in a catch per standard unit effort estimate of the population. 
We use population counts to assess the relative population size across 
the range of the species.
    Freshwater quality and quantity: Although crayfish are facultative 
air breathers, moisture is required to facilitate the respiratory 
process (Longshaw and Stebbing 2016, p. 327). Burrowing to groundwater 
or access to surface water are both important habitat features needed 
to prevent desiccation of individuals and populations. Declines in 
water quality are known to present a significant threat to other 
species of crayfish (and presumably to PCC). These declines can range 
from oxygen-deficient conditions resulting from algal blooms, sewage 
spills, or localized leaks to pollution originating from roadway runoff 
or chemical spills (Acosta and Perry 2001). The Panama City crayfish 
often inhabits ditches and swales close or adjacent to commercial and 
private properties, which may affect the water quality at these sites. 
We used a proxy measure of water quality and quantity based on the 
amount of development surrounding the population. We assumed that 
greater acreage in developed and unsuitable landcover types (which 
includes transportation and other development-related types) is 
correlated with declines in this habitat element. Herbaceous ground 
cover: Herbaceous vegetation is important to the Panama City crayfish

[[Page 335]]

for food, detritus formation, and cover. Absence of vegetation 
increases exposure of this small crayfish to predation and reduces 
availability of food. Suitable habitat: Species sampling efforts and a 
recent landscape modeling analysis support the theory that the Panama 
City crayfish almost exclusively relies on core and secondary soils. 
These soils provide the sediment structure needed for burrow 
construction to the water table and also support the herbaceous 
vegetation upon which the species relies for food and cover. Lands 
supporting the Panama City crayfish must be of sufficient size to 
sustain a population, but we don't know the minimum size, as many 
factors influence a Panama City crayfish population, including other 
habitat conditions. The recent work of Duncan et al. (2017) showed that 
all remaining populations with >800 acres of suitable habitat 
supporting them were genetically healthy, and population counts support 
this as well.
    Maintaining representation in the form of genetic or ecological 
diversity is important to maintain the Panama City crayfish's capacity 
to adapt to future environmental changes. The 13 remaining populations 
show relatively high genetic differentiation with inbreeding 
coefficients ranging from 0.214 to 0.493 and associated acreages of 
suitable habitat ranging from 5 acres to 5,309 acres.
    Redundancy reduces the risk that a large portion of the species' 
range will be negatively affected by a natural or anthropogenic 
catastrophic event at a given point in time. Species that have 
resilient populations spread throughout their historical range are less 
susceptible to extinction (Carroll et al. 2010; Redford et al. 2011). 
The Panama City crayfish historically lacked redundancy in that its 
historical range consisted of one population of interconnected soils. 
Today, there is a distinct genetic difference between individual 
patches located in the western range versus individual patches within 
the eastern range, which likely corresponds to patterns of 
fragmentation from urban development as well as some natural wetland 
buffers (creeks, stream bodies) (Duncan et al. 2017).

Summary of Biological Status and Threats

    We completed a comprehensive assessment of the biological status of 
the Panama City crayfish, and prepared a report of the assessment, 
which provides a thorough account of the species' overall viability. In 
this section, we summarize the conclusions of that assessment, which 
can be accessed at Docket No. FWS-R4-ES-2017-0061 on http://www.regulations.gov.

Summary of Factors Affecting the Species

    The Act directs us to determine whether any species is an 
endangered species or a threatened species because of any factors 
affecting its continued existence. We reviewed the potential risk 
factors (i.e., threats, stressors) that could be affecting the Panama 
City crayfish now and in the future. In this proposed rule, we will 
discuss in detail only those factors that could meaningfully impact the 
status of the species. The primary risk factors (i.e., threats) 
affecting the status of the Panama City crayfish are habitat loss and 
degradation, habitat fragmentation, and subpopulation isolation due to 
development (Factor A from the Act). Additional stressors to the 
species include collection for bait (Factor B), disease (Factor C), 
off-road vehicle use (Factor A), and insecticide application (Factor 
E); however, our analysis shows that while these stressors may be 
impacting individual Panama City crayfish, they are not having species-
wide impacts. For a full description of all identified stressors, refer 
to chapter 4 of the SSA report (Service 2017).
Factor A. The Present or Threatened Destruction, Modification, or 
Curtailment of Its Habitat or Range
    Development projects and land conversion can result in direct loss 
of habitat, as well as fragmentation and isolation of populations. The 
effects of development may also include alterations to water quality 
and quantity. Historically, the Panama City crayfish inhabited natural 
and often temporary bodies of shallow fresh water within open pine 
flatwoods and wet prairie-marsh communities (Hobbs 1942). The Panama 
City crayfish's natural habitat (wet pine flatwoods) has been lost or 
degraded through residential, commercial, and industrial development, 
as well as conversion to intensive pine silviculture and for ranching 
and farming uses. It is likely that no unaltered natural pine flatwoods 
remain within the Panama City crayfish's current range.
    Most known Panama City crayfish occurrences are in human-altered 
habitats and are vulnerable to further loss or alteration. Although 
artificial habitats such as roadside ditches and rights-of-way have 
allowed the Panama City crayfish to persist in areas from which they 
would otherwise likely have been extirpated, human activities can alter 
the hydrology and configuration of these sites, making them unsuitable 
for long-term Panama City crayfish persistence. For example, roadside 
ditch maintenance and construction activities have resulted in the 
destruction of several crayfish sites.
    While ditch maintenance activities may have temporary negative 
impacts on the species, if conducted using conservation management 
principles, they may provide long-term habitat improvements that 
support Panama City crayfish presence. For example, the design of the 
ditch helps determine whether it can support Panama City crayfish. 
Swales and ditches with herbaceous vegetation and a 3:1 or shallower 
slope are more likely to support Panama City crayfish than ditches with 
a steeper slope (FWC 2017, p. 22).
    Infrastructure development has impacted, or is anticipated to 
impact, several crayfish sites (Keppner and Keppner 2001, pp. 13-14, 
2004, p. 9). For example, several proposed road construction or 
expansion projects, such as the widening of Star Avenue and Kern Avenue 
and the widening and hardening of Tram Road, may impact Panama City 
crayfish habitat in the future. Infrastructure development can 
eliminate suitable Panama City crayfish habitat by removing the 
required herbaceous vegetation and digging up the surrounding soils.
    Silvicultural practices such as ditching and bedding, roller 
chopping, installing fire breaks, and constructing roads can alter the 
hydrology of Panama City crayfish sites, create physical barriers to 
crayfish movement, and destroy underground burrows (Hobbs 2001, p. 988; 
Keppner and Keppner 2001, p. 13, 2004, p. 10; FWC 2006, p. 10). These 
activities may contribute to the isolation of Panama City crayfish 
populations. Fire suppression and high tree density on silvicultural 
sites can reduce herbaceous groundcover necessary for suitable crayfish 
habitat (Keppner and Keppner 2001, p. 13, 2004, p. 10; FWC 2006, p. 
27). Similarly, removal of tree canopy cover, changes in ground cover 
vegetation, and associated changes in water quality and surface water 
availability are all possible changes associated with the effects of 
conversion to farming and ranching practices, such as cattle grazing 
(e.g., Jansen and Robertson 2001, pp. 71-73). These activities 
negatively impact the habitat of the Panama City crayfish. Although 
minimal changes are expected to occur due to farming and ranching 
practices, conversion from silviculture to grazing use has occurred on 
lands adjacent the crayfish's range.

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    Freshwater crayfish may be sensitive to declines in water quality 
and declines have been identified as a threat to other crayfish 
species. Water quality declines can range from oxygen-deficient 
conditions resulting from algal blooms or sewage spills to pollution 
originating from roadway runoff, pesticide applications, or chemical 
spills (Acosta and Perry 2001, p. 46). Given the level of development 
throughout the range of the Panama City crayfish and the occurrences of 
Panama City crayfish adjacent to private properties, runoff from roads 
or improper application of chemicals, such as pesticides or 
fertilizers, may negatively impact water quality and have direct 
impacts on the species.
    The majority of known Panama City crayfish occurrences in the 
western part of the range are in roadside ditches and swales that are 
isolated from other Panama City crayfish populations by roads, 
development, and land use changes. Fragmentation and isolation can 
increase vulnerability to local extirpation due to adverse genetic, 
demographic, and environmental events. Further, when Panama City 
crayfish have been extirpated from an area, lack of habitat connections 
between sites can prevent Panama City crayfish from recolonizing the 
newly vacant sites (FWC 2006, p. 10). Recent genetic work indicates the 
isolation in the western portion of the range has resulted in 
inbreeding and drift (Duncan et al. 2017, p. 17).
    In addition to the effects on habitat described above, many of the 
activities contributing to habitat loss and degradation can also 
directly harm or kill Panama City crayfish. Continuous loss of 
individuals can eventually lead to extirpation of isolated populations. 
In particular, roadside maintenance, dredging, and infrastructure 
development in roadside ditches and silvicultural and farming 
activities, if done without appropriate safeguards, have the potential 
to kill, harm, or displace Panama City crayfish due to the removal by 
heavy machinery of soil from crayfish sites. In addition, fill placed 
on sites in preparation for construction activities can entomb crayfish 
in their burrows
    Off-road vehicle use may impact the Panama City crayfish by 
crushing, as well as impacting the habitat through rutting of the soil 
and destruction of vegetation (FWC 2016, p. 11). Off-road vehicle use 
has been documented in areas within the eastern part of the Panama City 
crayfish's range along Gulf Power rights-of-way. Gulf Power has blocked 
access to these rights-of-way with gates, so access to these areas is 
limited and we do not expect off-road vehicle use is resulting in 
species-wide impacts.
Factor B. Overutilization for Commercial, Recreational, Scientific, or 
Educational Purposes
    Crayfish may be recreationally harvested for fish bait. Within the 
range of the Panama City crayfish, several of the areas where the 
species occurs are known to be utilized by locals collecting fish bait 
(FWC 2016, p.11; Keppner and Keppner 2001, 2005). However, although 
harvesting individual crayfish at these sites has been documented, the 
actual species collected are unknown. Therefore, while harvesting 
crayfish may be impacting individual Panama City crayfish, we find that 
it is not having a species-wide impact.
    Florida State Code 68A-9.002 authorizes the Director of the Florida 
Fish and Wildlife Conservation Commission to issue permits to collect 
any wildlife species for ``scientific, educational, exhibition, 
propagation, management or other justifiable purposes.'' Permits have 
been issued for biologists conducting surveys on the Panama City 
crayfish; however, the Panama City crayfish is not known to be targeted 
for significant scientific or educational collections.
Factor C. Disease or Predation
    Disease agents and pests identified for freshwater crayfish include 
viruses, bacteria, rickettsia-like organisms, fungi, protistans, and 
metazoans (Evans et al. 2002, p. 1). There is no reported information 
on the presence of disease or parasites in the Panama City crayfish to 
date. Nothing indicates that predation or competition by native or non-
native predators is currently affecting Panama City crayfish at the 
species level.
Factor D. The Inadequacy of Existing Regulatory Mechanisms
    The following existing regulatory mechanisms were considered and 
discussed as they relate to the stressors, under the applicable 
Factors, affecting the Panama City crayfish: Florida State Code 68A-
9.002 (Factor B).
    The Panama City crayfish is currently identified as a State Species 
of Special Concern in Florida (Florida State Code 68A-27.005). Species 
of Special Concern require individuals to obtain a permit from the FWC 
Executive Director in order to take, possess, transport, or sell the 
species.
    FWC has developed voluntary draft guidelines for developers to 
consider when undertaking projects that may impact Panama City crayfish 
and its habitat (FWC 2016). However, these guidelines are not 
regulatory in nature. We are not aware of any regulatory mechanisms in 
place to address the threat of habitat loss, fragmentation, and 
degradation due to development.
Factor E. Other Natural or Manmade Factors Affecting Its Continued 
Existence
    The Service considered several additional stressors to the Panama 
City crayfish, including chemical application and sea level rise.
    Mosquitocides are used within the range of the Panama City crayfish 
to treat both larval and adult mosquitoes. The mosquitocides registered 
for use within the range of the Panama City crayfish do not pose known 
threats to water quality if applied per label directions (FWC 2016, p. 
10). Fertilizers, insecticides, and herbicides may pose a risk to 
Panama City crayfish if applied inappropriately.
    The Panama City crayfish was included in a statewide vulnerability 
assessment for approximately 1000 species in Florida (Reece et al. 
2013, Hocter et al. 2014) using a Standardized Index of Vulnerability 
and Value Assessment (SIVVA; Reece and Noss 2014). Based on the data 
used in this assessment, the Panama City crayfish did not meet the 
vulnerability assessment criteria. The assessment used a 10 meter 
digital elevation model ``bathtub'' projection that showed 2 meters of 
sea level rise and overlapped these projections with species' `element 
occurrences.' (Reece et al 2013). The assessment focused on those 
species which had 50% or more of their occurrences intersecting with 
the sea level rise projection. The Panama City crayfish did not meet 
this criteria. Overall, little suitable habitat for Panama City 
crayfish will be affected by sea level rise (Hocter et al. 2014).

Conservation Actions

    Several private lands within the Panama City crayfish's range are 
being managed under conservation easements for the species. These 
easements largely cover wet pine flatwoods and wet prairie habitats. 
Other private lands are inaccessible to surveyors, but if they lack 
significant disturbance and have suitable habitat for the species, they 
are likely occupied by Panama City crayfish.
    Areas in silviculture adjacent to human-altered habitats may serve 
as refuges for Panama City crayfish, and silvicultural BMPs require 
operators to minimize impacts to Panama City crayfish. Use of BMPs for 
agriculture and grazing can also help minimize impacts to aquatic 
species (e.g., Florida

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Department of Agriculture and Consumer Services 2008, p. 1). Gulf Power 
Company manages rights-of-way along approximately 114 acres of land 
that is populated by the Panama City crayfish. The Service and FWC have 
a management agreement that provides recommended BMPs to Gulf Power 
Company; the management practices through this agreement have proven 
effective as the crayfish continue to thrive within the easement areas.

Current Condition

    The historical range of the Panama City crayfish included a 56-
square-mile area in Bay County, Florida. It was likely one contiguous 
population within open pine flatwoods and prairie-marsh communities 
providing connectivity across the landscape. Currently, the species is 
found in 13 genetically distinct populations within the boundaries of 
its historical range. Within its range, 61 percent (9,180 acres) of 
habitat with core soils and 46 percent (5,646 acres) of habitat with 
secondary soils remain undeveloped, and the total amount of available 
suitable habitat based on soils is 54 percent of the historical habitat 
available to the species.
    The current condition is a qualitative estimate based on an 
analysis of the three population factors (inbreeding, population 
isolation, and population sampling/relative abundance) and three 
habitat elements (water quality/availability, herbaceous ground cover, 
and suitable habitat). Overall population and habitat condition 
rankings were determined by combining the three population factors and 
three habitat elements using the most frequent score for individual 
factors as the overall score. Of the 13 populations described, the 
current conditions show 4 (31 percent) populations are estimated to 
have high resiliency, 5 (38 percent) moderate resiliency, and 4 (31 
percent) low resiliency. In the western group of populations, 4 
populations have low resiliency, 3 populations have moderate 
resiliency, and 1 has high resiliency. In the eastern group, 2 
populations have moderate resiliency and 3 populations have high 
resiliency. Generally, genetic variation is low and inbreeding is high 
across the range, which indicate a high degree of current population 
isolation. This pattern is generally more pronounced in the sampling 
locations in the west (heavily urbanized areas).

Future Condition

    For the purpose of this assessment, we define viability as the 
ability of the species to sustain populations in the wild over time. 
This discussion explains how the stressors associated with habitat 
loss, fragmentation, and degradation from residential and commercial 
development will influence resiliency, redundancy, and representation 
for the Panama City crayfish throughout its current known range using a 
series of plausible scenarios for 2030, 2050, and 2070. We predicted 
both future population factors (inbreeding and population isolation) 
and habitat factors (water quality and quantity, herbaceous ground 
cover, and suitable habitat) and evaluated these to inform our future 
conditions.
    To predict potential future changes related to urban growth, we 
used layers from the Southeast Regional Assessment Project (SERAP, from 
the Biodiversity and Spatial Analysis Center at North Carolina State 
University; 60m resolution), a modification of the SLEUTH Projected 
Urban Growth model (Jantz et al. 2010, entire; Terando et al. 2014, 
entire). SERAP identifies the parameters in global and regional models 
that are most likely to affect the Southeast region's climate and local 
landscape dynamics, with the goal of providing decision makers with 
information about low-probability, high-impact climate extremes through 
downscaled models and threats analysis. We used these products to map 
future predicted changes in urbanization in 2030, 2050, and 2070. The 
uncertainty associated with the SLEUTH model increases in time, as the 
species' response to the dynamic nature of the variables becomes less 
predictive. There is a greater confidence in predicting potential 
development and the species' response to changes in the landscape in 
the near future rather than the distant future.
    To address uncertainty associated with the degree and extent of 
potential future stressors and their impacts on species' requisites, 
the 3Rs were assessed using three scenarios: status quo development 
(i.e., >=80 percent probability of occurring), moderate development 
(>=30 percent probability of occurring), and high development (>=0 
percent probability of occurring). The scenarios included projecting 
possible future development using the SERAP model (Jantz et al. 2010, 
entire; Terando et al. 2014, entire). They also describe the predicted 
effects of the development on loss and fragmentation of suitable 
habitat rangewide and on each of 11 known populations, and draw 
inferences about population health based on the work of Duncan et al. 
(2017, entire). We excluded two populations (College Point and City of 
Lynn Haven) from our scenario analysis due to insufficient available 
data. Please refer to the SSA report (Service 2017) for the full 
analysis of the future scenarios.
    In scenario one, the ``status quo'' scenario, we considered the 
development most likely to occur. Based on the SERAP model, this was 
development with a =80 percent probability. Under this 
scenario, Panama City crayfish will lose 1,401 to 3,096 acres of 
habitat rangewide as developed land increases from 20,221 to 25,040 
acres. This loss, fragmentation, and degradation of habitat would 
reduce the number of resilient populations in high or moderate 
condition from nine currently to five by 2050. This loss of resiliency 
comes from both a reduction in habitat elements as well as the effects 
of isolation and drift on the populations themselves.
    Under the ``status quo'' scenario, only one resilient population 
(the St. Joe population) is predicted to remain in the western group by 
2050. This results in a loss of redundancy and representation, as only 
one resilient population will remain in the western group. In the 
eastern group, four resilient populations are predicted to persist 
through 2070.
    In scenario two, the ``intermediate development'' scenario, we 
considered development with a moderate potential to occur. Based on the 
SERAP model, this was development with a >=30 percent probability of 
occurring. In this scenario, the Panama City crayfish will lose 2,252 
to 4,854 acres of habitat rangewide as developed land increases from 
20,221 to 27,332 acres. This loss, fragmentation, and degradation of 
habitat is predicted to reduce the number of resilient populations in 
high or moderate condition from nine currently to four by 2070. This 
loss of resiliency comes from both a reduction in habitat elements as 
well as the effects of isolation and drift on the populations 
themselves.
    Under the ``intermediate development'' scenario, only one resilient 
population (the St. Joe population) is predicted to remain in the 
western group by 2050. This results in a loss of redundancy and 
representation, as only one resilient population will remain in the 
western group. In the eastern group, three resilient populations are 
predicted to persist through 2070.
    In scenario three, ``high development'' or ``worst case'' scenario, 
we considered the development that is least likely to occur. Based on 
the SERAP model, this was development with at >0 percent probability of 
occurring. In this scenario, the Panama City crayfish will lose 3,233 
to 6,130 acres of habitat

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rangewide as developed land increases from 20,221 to 28,899 acres. This 
loss, fragmentation, and degradation of habitat is predicted to reduce 
the number of resilient populations in high or moderate condition from 
nine currently to three by 2070. This loss of resiliency comes from 
both a reduction in habitat elements as well as the effects of 
isolation and drift on the populations themselves.
    Under the ``high development'' scenario, all resilient populations 
in the western group are predicted to be lost by 2050, resulting in a 
loss of all representation and redundancy in the western group. In the 
eastern group, three resilient populations are predicted to persist 
through 2070.

Determination

    Section 4 of the Act (16 U.S.C. 1533), and its implementing 
regulations at 50 CFR part 424, set forth the procedures for adding 
species to the Federal Lists of Endangered and Threatened Wildlife and 
Plants. Under section 4(a)(1) of the Act, we may list a species based 
on: (A) The present or threatened destruction, modification, or 
curtailment of its habitat or range; (B) Overutilization for 
commercial, recreational, scientific, or educational purposes; (C) 
Disease or predation; (D) The inadequacy of existing regulatory 
mechanisms; or (E) Other natural or manmade factors affecting its 
continued existence.
    We have carefully assessed the best scientific and commercial 
information available regarding the past, present, and future threats 
to the Panama City crayfish. Our analysis of this information indicates 
that, at the species level, habitat development (Factor A) is the 
primary factor affecting the Panama City crayfish now and into the 
future. There may be additional infrastructure projects (e.g. roads, 
ditches, etc.) that affect the hydrology within the range of the Panama 
City crayfish as a result of forest clearing for permanent rights of 
way or silviculture. Additionally, the current level of habitat 
fragmentation (Factor A) further isolates populations, which reduces 
gene flow and limits the potential for the species to disperse. In 
addition, we have no evidence that ORV use (Factor A), overutilization 
(Factor B) or disease (Factor C) is affecting populations of Panama 
City crayfish.
    The Act defines an endangered species as any species that is ``in 
danger of extinction throughout all or a significant portion of its 
range.'' We find that an endangered species status is not appropriate 
for the Panama City crayfish because the species maintains multiple 
resilient populations across its historical range and the risk is low 
that the species would not persist in the near term; in other words, 
the risk of the Panama City crayfish significantly declining in the 
near term is low given that it has persisted despite historical levels 
of habitat loss. The current conditions as assessed in the Panama City 
crayfish SSA report show that only 43 to 54 percent of the original 
lands historically available to the Panama City crayfish remain 
potentially available for use by the Panama City crayfish. However, 
while the species' habitat has been reduced by at least 46 percent, the 
species currently consists of 13 populations, 9 of which are highly to 
moderately resilient and found across its historical range. Further, 
despite changes to the crayfish's natural habitat of wet pine 
flatwoods, the species currently persists using artificial habitats 
such as roadside ditches and rights-of-way although these sites may 
become unsuitable long term due to anthropogenic activities that can 
alter their hydrology or configuration. Therefore, we conclude that the 
current risk of extinction of the Panama City crayfish is sufficiently 
low that it does not meet the definition of an endangered species under 
the Act.
    The Act defines a threatened species as any species that is 
``likely to become endangered throughout all or a significant portion 
of its range within the foreseeable future.'' We find that the status 
of the Panama City crayfish meets the definition of a threatened 
species. Based on the biology of the species and the threats acting on 
it, the foreseeable future used in the determination was 20 to 30 
years. The generation time for the species is 2 years with a life-span 
up to 3.5 years; the period of 20-30 years encompasses 10-15 
generations, which is more than sufficient time to determine the 
species' response to the stressors. Although the future scenarios, 
which were snapshots in time for predicting resiliency, redundancy, and 
representation extended through 2070, the uncertainty as to the 
outcomes with regard to the responses to the stressors became so great 
as to render the scenarios too unreliable beyond 2050 for that time 
period to be considered the foreseeable future.
    Habitat fragmentation and isolation have contributed to the 
partitioning into 13 populations. While the Panama City crayfish faces 
a variety of threats, only one threat, habitat loss and degradation, 
habitat fragmentation, and subpopulation isolation due to urban 
development, was considered an important factor in our assessment of 
the future viability of the Panama City crayfish. Based on our future 
scenarios for urban development, we predict major losses of resiliency, 
representation, and redundancy for Panama City crayfish in the 
foreseeable future. Especially problematic is the predicted complete 
loss of resilience and redundancy from the western populations, which 
reduces half of the representation of Panama City crayfish. These 
combined losses under even the most probable status quo scenario make 
the ability of Panama City crayfish to sustain its populations into the 
foreseeable future questionable assuming current levels of protection 
and management.
    We have carefully assessed the best scientific and commercial 
information available regarding the past, present, and future threats 
to the Panama City crayfish. Habitat loss from development is occurring 
rangewide and has resulted in the fragmentation of the landscape. The 
fragmentation of suitable habitat has caused the isolation of existing 
populations limited to ditches, swales, slash pine plantations, and 
utility rights-of-ways. At the population level, Panama City crayfish 
now exists in 13 populations. Currently, four populations are estimated 
to maintain high resiliency; five are estimated to have moderate 
resiliency; and four are estimated to have low resiliency, including 
the two populations that are in the low condition but were excluded 
from future scenario analysis because of inadequate data.
    At the species level, the 13 Panama City crayfish populations are 
broken down into an eastern group of five populations and a western 
group of eight populations based on the characteristics of Panama City 
crayfish and its geographic distribution. Currently, four populations, 
all in the west, are in low condition, including the two that were 
excluded from future condition analysis because of inadequate data. 
These two populations represent 31 percent of the known populations 
overall and 50 percent of the western group, and, although still in 
existence, they may not contribute to the future redundancy of Panama 
City crayfish, because the populations are already experiencing genetic 
drift and the habitat that supports them is susceptible to future 
development.
    All future scenarios predicted a negative impact on the redundancy 
of Panama City crayfish. Under the ``status quo'' scenario, 62 percent 
of populations are in low condition by 2050; this percentage increases 
to 69 percent under the ``intermediate development'' scenario and to 77 
percent under the ``high development'' scenario. The greatest loss of 
redundancy for Panama City crayfish is

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predicted to occur in the western group. In this group, 100 percent of 
the populations are in low condition by 2050 under the ``high 
development'' scenario and 88 percent under the other two scenarios. In 
the eastern group, three populations are predicted to remain 
strongholds for Panama City crayfish, although they would represent 
only 60 percent of the remaining eastern populations.
    At the species level, we estimate that the Panama City crayfish 
currently has low to moderate adaptive potential across its range, and 
all of the future scenarios are predicted to have an impact on the 
species' representation during the 50-year time horizon. Even though 
Panama City crayfish has low representation in the western group, with 
only two of the eight populations not in low condition, these two 
populations likely will persist because of the protection afforded 
through conservation easements. The eastern group comprises a much 
larger area and contains the three populations currently in high 
condition. However, two of these populations, Highpoint and 231-north, 
are predicted to be in low condition in the future. This is especially 
concerning given that the Highpoint population contains unique genetic 
diversity not found in other populations, although more work is needed 
to confirm this (Duncan et al. 2017, p. 19).
    In short, based on our analysis of the species' current and future 
conditions, as well as the conservation efforts discussed above, we 
conclude that the population and habitat factors used to determine the 
resiliency, representation and redundancy for Panama City crayfish will 
continue to decline so it is likely to become in danger of extinction 
throughout its range within the foreseeable future. Therefore, on the 
basis of the best available scientific and commercial information, we 
propose listing the Panama City crayfish as threatened in accordance 
with sections 3(6) and 4(a)(1) of the Act.
    Under the Act and our implementing regulations, a species may 
warrant listing if it is endangered or threatened throughout all or a 
significant portion of its range. Because we have determined that the 
Panama City crayfish is threatened throughout all of its range, under 
the Final Policy on Interpretation of the Phrase ``Significant Portion 
of Its Range'' in the Endangered Species Act's Definitions of 
``Endangered Species'' and ``Threatened Species'' (79 FR 37577, July 1, 
2014) (SPR Policy), if a species warrants listing throughout all of its 
range, no portion of the species' range can be a ``significant'' 
portion of its range.). While it is the Service's position under the 
SPR Policy that undertaking no further analysis of ``significant 
portion of its range'' in this circumstance is consistent with the 
language of the Act, we recognize that the Policy is currently under 
judicial review, so we also took the additional step of considering 
whether there could be any significant portions of the species' range 
where the species is in danger of extinction. We evaluated whether 
there is substantial information indicating that there are any portions 
of the species' range: (1) That may be ``significant,'' and (2) where 
the species may be in danger of extinction. In practice, a key part of 
identifying portions appropriate for further analysis is whether the 
threats are geographically concentrated. The threats affecting the 
species are throughout its entire range; therefore, there is not a 
meaningful geographical concentration of threats. As a result, even if 
we were to undertake a detailed SPR analysis, there would not be any 
portions of the species' range where the threats are harming the 
species to a greater degree such that it is in danger of extinction in 
that portion.

Critical Habitat

    Section 4(a)(3) of the Act, as amended, and implementing 
regulations in 50 CFR 424.12, require that, to the maximum extent 
prudent and determinable, we designate critical habitat at the time the 
species is determined to be an endangered or threatened species. 
Critical habitat is defined in section 3 of the Act as:
    (1) The specific areas within the geographical area occupied by the 
species, at the time it is listed in accordance with the Act, on which 
are found those physical or biological features (a) essential to the 
conservation of the species and (b) Which may require special 
management considerations or protection; and
    (2) Specific areas outside the geographical area occupied by the 
species at the time it is listed in accordance with the Act, upon a 
determination by the Secretary of the Interior that such areas are 
essential for the conservation of the species.
    Our regulations (50 CFR 424.12(a)(1)) state that the designation of 
critical habitat is not prudent when any of the following situations 
exist: (1) The species is threatened by taking or other human activity, 
and identification of critical habitat can be expected to increase the 
degree of threat to the species, or (2) such designation of critical 
habitat would not be beneficial to the species. The regulations also 
provide that, in determining whether a designation of critical habitat 
would not be beneficial to the species, the factors that the Service 
may consider include, but are not limited to, whether the present or 
threatened destruction, modification, or curtailment of a species' 
habitat or range is not a threat to the species, or whether any areas 
meet the definition of ``critical habitat'' (50 CFR 424.12(a)(1)(ii)).
    As discussed above, there is no evidence that collection or 
vandalism are threats to the species, and there is no indication that 
identification and mapping of critical habitat is likely to initiate 
any such threats. Therefore, in the absence of finding that the 
designation of critical habitat would increase threats to the species, 
if there are benefits to the species from a critical habitat 
designation, a finding that designation is prudent is appropriate.
    The potential benefits of designation may include: (1) Triggering 
consultation under section 7 of the Act, in new areas for actions in 
which there may be a Federal nexus where it would not otherwise occur 
because, for example, it is unoccupied; (2) focusing conservation 
activities on the most essential features and areas; (3) providing 
educational benefits to State or county governments or to private 
entities; and (4) preventing people from causing inadvertent harm to 
the protected species. Because designation of critical habitat would 
not likely increase the degree of threat to the species and may provide 
some measure of benefit, designation of critical habitat is prudent for 
the Panama City crayfish.
    Our regulations (50 CFR 424.12(a)(2)) further state that critical 
habitat is not determinable when one or both of the following 
situations exists: (1) Information sufficient to perform required 
analysis of the impacts of the designation is lacking; or (2) the 
biological needs of the species are not sufficiently well known to 
permit identification of an area as critical habitat. A careful 
assessment of the economic impacts that may occur due to a critical 
habitat designation is ongoing, and we are in the process of working 
with the States and other partners in acquiring the complex information 
needed to perform that assessment. Until these efforts are complete, 
information sufficient to perform a required analysis of the impacts of 
the designation is lacking, and, therefore, we find designation of 
critical habitat for this species to be not determinable at this time.

Available Conservation Measures

    Conservation measures provided to species listed as endangered or

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threatened species under the Act include recognition, recovery actions, 
requirements for Federal protection, and prohibitions against certain 
practices. Recognition through listing results in public awareness, and 
conservation by Federal, State, Tribal, and local agencies; private 
organizations; and individuals. The Act encourages cooperation with the 
States and other countries and calls for recovery actions to be carried 
out for listed species. The protection required by Federal agencies and 
the prohibitions against certain activities are discussed, in part, 
below.
    The primary purpose of the Act is the conservation of endangered 
and threatened species and the ecosystems upon which they depend. The 
ultimate goal of such conservation efforts is the recovery of these 
listed species, so that they no longer need the protective measures of 
the Act. Subsection 4(f) of the Act calls for the Service to develop 
and implement recovery plans for the conservation of endangered and 
threatened species. The recovery planning process involves the 
identification of actions that are necessary to halt or reverse the 
species' decline by addressing the threats to its survival and 
recovery. The goal of this process is to restore listed species to a 
point where they are secure, self-sustaining, and functioning 
components of their ecosystems.
    Recovery planning includes the development of a recovery outline 
shortly after a species is listed and preparation of a draft and final 
recovery plan. The recovery outline guides the immediate implementation 
of urgent recovery actions and describes the process to be used to 
develop a recovery plan. Revisions of the plan may be done to address 
continuing or new threats to the species, as new substantive 
information becomes available. The recovery plan also identifies 
recovery criteria for review of when a species may be ready for 
downlisting (i.e., reclassification from endangered status to 
threatened status) or delisting (i.e., removal from the List), and 
methods for monitoring recovery progress. Recovery plans also establish 
a framework for agencies to coordinate their recovery efforts and 
provide estimates of the cost of implementing recovery tasks.
    Recovery teams (composed of species experts, Federal and State 
agencies, nongovernmental organizations, and stakeholders) are often 
established to develop recovery plans. When completed, the recovery 
outline, draft recovery plan, and the final recovery plan will be 
available on our website (http://www.fws.gov/endangered), or from our 
Panama City Ecological Services Field Office (see FOR FURTHER 
INFORMATION CONTACT).
    Implementation of recovery actions generally requires the 
participation of a broad range of partners, including other Federal 
agencies, States, Tribes, nongovernmental organizations, businesses, 
and private landowners. Examples of recovery actions include habitat 
restoration (e.g., restoration of native vegetation), research, captive 
propagation and reintroduction, and outreach and education. The 
recovery of many listed species cannot be accomplished solely on 
Federal lands because their ranges may occur primarily or solely on 
non-Federal lands. To achieve recovery of these species requires 
cooperative conservation efforts on private, State, and Tribal lands. 
If this species is listed, funding for recovery actions will be 
available from a variety of sources, including Federal budgets, State 
programs, and cost share grants for non-Federal landowners, the 
academic community, and nongovernmental organizations. In addition, 
pursuant to section 6 of the Act, the State of Florida would be 
eligible for Federal funds to implement management actions that promote 
the protection or recovery of the Panama City crayfish. Information on 
our grant programs that are available to aid species recovery can be 
found at: http://www.fws.gov/grants.
    Although the Panama City crayfish is only proposed for listing 
under the Act at this time, please let us know if you are interested in 
participating in recovery efforts for this species. Additionally, we 
invite you to submit any new information on this species whenever it 
becomes available and any information you may have for recovery 
planning purposes (see FOR FURTHER INFORMATION CONTACT).
    Section 7(a) of the Act requires Federal agencies to evaluate their 
actions with respect to any species that is proposed or listed as an 
endangered or threatened species and with respect to its critical 
habitat, if any is designated. Regulations implementing this 
interagency cooperation provision of the Act are codified at 50 CFR 
part 402. Section 7(a)(4) of the Act requires Federal agencies to 
confer with the Service on any action that is likely to jeopardize the 
continued existence of a species proposed for listing or result in 
destruction or adverse modification of proposed critical habitat. If a 
species is listed subsequently, section 7(a)(2) of the Act requires 
Federal agencies to ensure that activities they authorize, fund, or 
carry out are not likely to jeopardize the continued existence of the 
species or destroy or adversely modify its critical habitat. If a 
Federal action may affect a listed species or its critical habitat, the 
responsible Federal agency must enter into consultation with the 
Service.
    Federal agency actions within the species' habitat that may require 
conference or consultation or both as described in the preceding 
paragraph include management and any other landscape-altering 
activities on Federal lands administered by the issuance of section 404 
Clean Water Act (33 U.S.C. 1251 et seq.) permits by the U.S. Army Corps 
of Engineers, and construction and maintenance of roads or highways by 
the Federal Highway Administration.
    The Act and its implementing regulations set forth a series of 
general prohibitions and exceptions that apply to threatened wildlife. 
The prohibitions of section 9(a)(1) of the Act, as applied to 
threatened wildlife and codified at 50 CFR 17.31, make it illegal for 
any person subject to the jurisdiction of the United States to take 
(which includes harass, harm, pursue, hunt, shoot, wound, kill, trap, 
capture, or collect; or to attempt any of these) threatened wildlife 
within the United States or on the high seas. In addition, it is 
unlawful to import; export; deliver, receive, carry, transport, or ship 
in interstate or foreign commerce in the course of commercial activity; 
or sell or offer for sale in interstate or foreign commerce any listed 
species. It is also illegal to possess, sell, deliver, carry, 
transport, or ship any such wildlife that has been taken illegally. 
Certain exceptions apply to employees of the Service, the National 
Marine Fisheries Service, other Federal land management agencies, and 
State conservation agencies.
    We may issue permits to carry out otherwise prohibited activities 
involving threatened wildlife under certain circumstances. Regulations 
governing permits are codified at 50 CFR 17.32. With regard to 
threatened wildlife, a permit may be issued for the following purposes: 
For scientific purposes, to enhance the propagation or survival of the 
species, for economic hardship, for zoological exhibition, for 
educational purposes, or for other special purposes consistent with the 
purposes of the Act. There are also certain statutory exemptions from 
the prohibitions, which are found in sections 9 and 10 of the Act.
    It is our policy, as published in the Federal Register on July 1, 
1994 (59 FR 34272), to identify to the maximum extent practicable at 
the time a species is listed, those activities that would or would not 
constitute a violation of section 9 of the Act. The intent of this 
policy is to increase public awareness of

[[Page 341]]

the effect of a proposed listing on proposed and ongoing activities 
within the range of the species proposed for listing. Activities that 
the Service believes could potentially harm the Panama City crayfish 
and result in ``take'' include, but are not limited to:
    (1) Unauthorized handling or collecting of the species;
    (2) Destruction or alteration of the species' habitat by 
development;
    (3) Actions that would alter the hydrology within suitable soils 
available for the Panama City crayfish;
    (4) Actions that result in permanent loss of habitat within 
suitable soils once available to the Panama City crayfish;
    (5) Application of chemicals, including insecticides and petroleum 
products in violation of label restrictions, or other actions that 
pollute the soils and waters that are used by the Panama City crayfish; 
and
    (6) Destruction of herbaceous vegetation directly adjacent to 
occupied pools that affects the hydrology and removes cover for the 
crayfish.
    Questions regarding whether specific activities would constitute a 
violation of section 9 of the Act should be directed to the Panama City 
Ecological Services Field Office (see FOR FURTHER INFORMATION CONTACT, 
above).

Required Determinations

Clarity of the Rule

    We are required by Executive Orders 12866 and 12988 and by the 
Presidential Memorandum of June 1, 1998, to write all rules in plain 
language. This means that each rule we publish must:
    (1) Be logically organized;
    (2) Use the active voice to address readers directly;
    (3) Use clear language rather than jargon;
    (4) Be divided into short sections and sentences; and
    (5) Use lists and tables wherever possible.
    If you feel that we have not met these requirements, send us 
comments by one of the methods listed in ADDRESSES. To better help us 
revise the rule, your comments should be as specific as possible. For 
example, you should tell us the numbers of the sections or paragraphs 
that are unclearly written, which sections or sentences are too long, 
the sections where you feel lists or tables would be useful, etc.

National Environmental Policy Act (42 U.S.C. 4321 et seq.)

    We have determined that environmental assessments and environmental 
impact statements, as defined under the authority of the National 
Environmental Policy Act, need not be prepared in connection with 
listing a species as an endangered or threatened species under the 
Endangered Species Act. We published a notice outlining our reasons for 
this determination in the Federal Register on October 25, 1983 (48 FR 
49244).

References Cited

    A complete list of references cited in the SSA report is available 
on the internet at http://www.regulations.gov and upon request from the 
Panama City Ecological Services Field Office (see FOR FURTHER 
INFORMATION CONTACT, above).

Authors

    The primary authors of this proposed rule are the staff members of 
the Service's Unified Listing Team and the Panama City Ecological 
Services Field Office.

List of Subjects in 50 CFR Part 17

    Endangered and threatened species, Exports, Imports, Reporting and 
recordkeeping requirements, Transportation.

Proposed Regulation Promulgation

    Accordingly, we propose to amend part 17, subchapter B of chapter 
I, title 50 of the Code of Federal Regulations, as set forth below:

PART 17--ENDANGERED AND THREATENED WILDLIFE AND PLANTS

0
1. The authority citation for part 17 continues to read as follows:

    Authority: 16 U.S.C. 1361-1407; 1531-1544; and 4201-4245, unless 
otherwise noted.

0
2. Amend Sec.  17.11(h), the List of Endangered and Threatened 
Wildlife, by adding an entry for ``Crayfish, Panama City'' in 
alphabetical order under CRUSTACEANS to read as set forth below:


Sec.  17.11  Endangered and threatened wildlife.

* * * * *
    (h) * * *

----------------------------------------------------------------------------------------------------------------
                                                                                           Listing citations and
          Common name              Scientific name      Where listed          Status         applicable rules
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
                                                   CRUSTACEANS
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
Crayfish, Panama City..........  Procambarus         Wherever found....  T                [Federal Register
                                  econfinae.                                               citation when
                                                                                           published as a final
                                                                                           rule].
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------

* * * * *

     Dated: November 21, 2017.
 James W. Kurth,
Deputy Director for U.S. Fish and Wildlife Service Exercising the 
Authority of the Director for U.S. Fish and Wildlife Service.
[FR Doc. 2017-28313 Filed 1-2-18; 8:45 am]
 BILLING CODE 4333-15-P



                                                    330                    Federal Register / Vol. 83, No. 2 / Wednesday, January 3, 2018 / Proposed Rules

                                                    process. Applicants who claim a                         Endangered and Threatened Wildlife                     Register and make a determination on
                                                    competitive bidding exemption must                      (List).                                                our proposal within 1 year. Critical
                                                    submit relevant documentation to allow                  DATES: We will accept comments                         habitat shall be designated, to the
                                                    the Administrator to verify that the                    received or postmarked on or before                    maximum extent prudent and
                                                    applicant is eligible for the claimed                   March 5, 2018. Comments submitted                      determinable, for any species
                                                    exemption.                                              electronically using the Federal                       determined to be an endangered or
                                                    *     *    *      *     *                               eRulemaking Portal (see ADDRESSES,                     threatened species under the Act.
                                                    ■ 7. Amend § 54.645 by revising                         below) must be received by 11:59 p.m.                  Listing a species as an endangered or
                                                    paragraph (b) to read as follows:                       Eastern Time on the closing date. We                   threatened species and designations and
                                                                                                            must receive requests for public                       revisions of critical habitat can be
                                                    § 54.645   Payment Process.
                                                                                                            hearings, in writing, at the address                   completed only by issuing a rule.
                                                    *      *    *     *     *                               shown in FOR FURTHER INFORMATION
                                                       (b) Before the Administrator may                                                                               This rule proposes adding the Panama
                                                                                                            CONTACT by February 20, 2018.
                                                    process and pay an invoice, both the                                                                           City crayfish (Procambarus econfinae)
                                                                                                            ADDRESSES: Document availability: The
                                                    Consortium Leader (or health care                                                                              as a threatened species to the List of
                                                                                                            report upon which this proposed rule is
                                                    provider, if participating individually)                                                                       Endangered and Threatened Wildlife in
                                                                                                            based (see SUPPLEMENTARY INFORMATION)
                                                    and the vendor must certify that they                   is available at http://                                title 50 of the Code of Federal
                                                    have reviewed the document and that it                  www.regulations.gov in Docket No.                      Regulations (50 CFR 17.11(h)).
                                                    is accurate. The service provider must                  FWS–R4–ES–2017–0061 and on the                            The basis for our action. Under the
                                                    certify on the invoice that it has                      Service’s Southeast Region website at                  Act, we may determine that a species is
                                                    reviewed all applicable requirements for                https://www.fws.gov/southeast/.                        an endangered or threatened species
                                                    the program, including the competitive                     Comment submission: You may                         based on any of five factors: (A) The
                                                    bidding requirements described in                       submit comments by one of the                          present or threatened destruction,
                                                    § 54.642, and has complied with those                   following methods:                                     modification, or curtailment of its
                                                    requirements. All invoices must be                         (1) Electronically: Go to the Federal               habitat or range; (B) Overutilization for
                                                    received by the Administrator within                    eRulemaking Portal: http://                            commercial, recreational, scientific, or
                                                    six months (180 days) of the end date of                www.regulations.gov. In the Search box,                educational purposes; (C) Disease or
                                                    the time period covered by the funding                  enter FWS–R4–ES–2017–0061, which is
                                                    commitment.                                                                                                    predation; (D) The inadequacy of
                                                                                                            the docket number for this rulemaking.
                                                                                                                                                                   existing regulatory mechanisms; or (E)
                                                    [FR Doc. 2017–27746 Filed 1–2–18; 8:45 am]              Then, in the Search panel on the left
                                                                                                                                                                   Other natural or manmade factors
                                                    BILLING CODE 6712–01–P                                  side of the screen, under the Document
                                                                                                                                                                   affecting its continued existence. We
                                                                                                            Type heading, click on the Proposed
                                                                                                            Rules link to locate this document. You                have determined that habitat loss and
                                                                                                            may submit a comment by clicking on                    fragmentation from development (Factor
                                                    DEPARTMENT OF THE INTERIOR                              ‘‘Comment Now!’’                                       A) is the primary threat to the Panama
                                                                                                               (2) By hard copy: Submit by U.S. mail               City crayfish.
                                                    Fish and Wildlife Service
                                                                                                            or hand-delivery to: Public Comments                   Supporting Documents
                                                                                                            Processing, Attn: FWS–R4–ES–2017–
                                                    50 CFR Part 17
                                                                                                            0061; U.S. Fish and Wildlife Service,                     A species status assessment (SSA)
                                                    [Docket No. FWS–R4–ES–2017–0061;                        MS: BPHC, 5275 Leesburg Pike, Falls                    team prepared an SSA report for the
                                                    4500030113]                                             Church, VA 22041–3803.                                 Panama City crayfish. The SSA team
                                                                                                               We request that you send comments                   was composed of Service biologists, in
                                                    RIN 1018–BC14                                           only by the methods described above.                   consultation with other species experts.
                                                                                                            We will post all comments on http://                   The SSA report represents a
                                                    Endangered and Threatened Wildlife                      www.regulations.gov. This generally
                                                    and Plants; Threatened Species Status                                                                          compilation of the best scientific and
                                                                                                            means that we will post any personal                   commercial data available concerning
                                                    for the Panama City Crayfish                            information you provide us (see Public                 the status of the species, including the
                                                    AGENCY:   Fish and Wildlife Service,                    Comments, below, for more                              impacts of past, present, and future
                                                    Interior.                                               information).                                          factors (both negative and beneficial)
                                                    ACTION: Proposed rule.                                  FOR FURTHER INFORMATION CONTACT:                       affecting the species. Maps depicting the
                                                                                                            Catherine Phillips, Field Supervisor,                  historical range and current populations
                                                    SUMMARY:    We, the U.S. Fish and                       U.S. Fish and Wildlife Service, Panama                 are included in the SSA for reference.
                                                    Wildlife Service (Service), announce a                  City Ecological Services Field Office,
                                                    12-month finding on a petition to list                                                                            Peer review. We solicited independent
                                                                                                            1601 Balboa Avenue, Panama City, FL
                                                    the Panama City crayfish (Procambarus                                                                          peer review of the SSA Report by six
                                                                                                            32405; telephone 850–769–0552;
                                                    econfinae), a semi-terrestrial crayfish                 facsimile 850–763–2177. Persons who                    individuals with expertise in crayfish;
                                                    species native to Bay County, Florida, as               use a telecommunications device for the                aquatic invertebrates, population, or
                                                    a threatened species under the                          deaf (TDD) may call the Federal Relay                  landscape ecology; genetics and
                                                    Endangered Species Act (Act). After                     Service at 800–877–8339.                               conservation genetics; and/or speciation
                                                    review of the best available scientific                                                                        and conservation biology. We received
jstallworth on DSKBBY8HB2PROD with PROPOSALS




                                                                                                            SUPPLEMENTARY INFORMATION:
                                                    and commercial information, we find                                                                            comments from one of the six peer
                                                    that listing this species is warranted.                 Executive Summary                                      reviewers. The SSA report and other
                                                    Accordingly, we propose to list the                        Why we need to publish a rule. Under                materials relating to this proposal can be
                                                    Panama City crayfish as a threatened                    the Act, if we determine that a species                found on the Service’s Southeast Region
                                                    species under the Act. If we finalize this              is an endangered or threatened species                 website at https://www.fws.gov/
                                                    rule as proposed, it would extend the                   throughout all or a significant portion of             southeast/ and at http://
                                                    Act’s protections to this species and add               its range, we are required to promptly                 www.regulations.gov under Docket No.
                                                    this species to the Federal List of                     publish a proposal in the Federal                      FWS–R4–ES–2017–0061.


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                                                                           Federal Register / Vol. 83, No. 2 / Wednesday, January 3, 2018 / Proposed Rules                                              331

                                                    Information Requested                                      (e) Activities that maintain native                 accommodations, in the Federal
                                                                                                            vegetation near occupied or likely to be               Register and local newspapers at least
                                                    Public Comments
                                                                                                            occupied Panama City crayfish habitat;                 15 days before the hearing.
                                                      We intend that any final action                          (f) Sustainable silviculture practices
                                                                                                            that primarily occur adjacent to Panama                Peer Review
                                                    resulting from this proposed rule will be
                                                    based on the best scientific and                        City crayfish habitat and that are                        In accordance with our joint policy on
                                                    commercial data available and be as                     implemented according to certified best                peer review published in the Federal
                                                    accurate and as effective as possible.                  management practices; or                               Register on July 1, 1994 (59 FR 34270),
                                                    Therefore, we request comments or                          (g) Any additional activities that                  and our August 22, 2016, memorandum
                                                    information from other concerned                        should fall under the 4(d) rule.                       updating and clarifying the role of peer
                                                    governmental agencies, Native                              Please include sufficient information               review of listing actions under the Act,
                                                    American tribes, the scientific                         with your submission (such as scientific               we sought the expert opinions of six
                                                    community, industry, or any other                       journal articles or other publications) to             appropriate specialists regarding the
                                                    interested parties concerning this                      allow us to verify any scientific or                   SSA report, which informed this
                                                    proposed rule. We particularly seek                     commercial information you include.                    proposed rule. We received a response
                                                    comments concerning:                                       Please note that submissions merely                 from one of the six peer reviewers. The
                                                      (1) The Panama City crayfish’s                        stating support for or opposition to the               purpose of peer review is to ensure that
                                                    biology, range, and population trends,                  action under consideration without                     our listing determination is based on
                                                    including:                                              providing supporting information,                      scientifically sound data, assumptions,
                                                      (a) Biological or ecological                          although noted, will not be considered                 and analyses. The peer reviewers have
                                                    requirements of the species, including                  in making a determination, as section                  expertise in crayfish biology, habitat,
                                                    habitat requirements for feeding,                       4(b)(1)(A) of the Act directs that                     and stressors to the species. We invite
                                                    breeding, and sheltering;                               determinations as to whether any                       any additional comment from the peer
                                                      (b) Genetics and taxonomy;                            species is an endangered or threatened                 reviewers during this public comment
                                                      (c) Historical and current range,                     species must be made ‘‘solely on the                   period; these comments will be
                                                    including distribution patterns;                        basis of the best scientific and                       available along with other public
                                                      (d) Historical and current population                 commercial data available.’’                           comments in the docket for this
                                                                                                               You may submit your comments and                    proposed rule.
                                                    levels, and current and projected trends;
                                                                                                            materials concerning this proposed rule
                                                    and                                                                                                            Previous Federal Action
                                                                                                            by one of the methods listed in
                                                      (e) Past and ongoing conservation                                                                              In 2010, the Center for Biological
                                                                                                            ADDRESSES. We request that you send
                                                    measures for the species, its habitat, or                                                                      Diversity (CBD) petitioned the Service
                                                                                                            comments only by the methods
                                                    both.                                                                                                          to list 404 aquatic, riparian, and wetland
                                                                                                            described in ADDRESSES.
                                                      (2) Factors that may affect the                         If you submit information via http://                species from the Southeastern United
                                                    continued existence of the species,                     www.regulations.gov, your entire                       States under the Act. The Panama City
                                                    which may include habitat modification                  submission—including any personal                      crayfish was among these 404 species.
                                                    or destruction, overutilization, disease,               identifying information—will be posted                 On September 27, 2011, the Service
                                                    predation, the inadequacy of existing                   on the website. If your submission is                  published a substantial 90-day finding
                                                    regulatory mechanisms, or other natural                 made via a hardcopy that includes                      for 374 of the 404 species, including the
                                                    or manmade factors.                                     personal identifying information, you                  Panama City crayfish, soliciting
                                                      (3) Biological, commercial trade, or                  may request at the top of your document                information about, and initiating status
                                                    other relevant data concerning any                      that we withhold this information from                 reviews for, those species (76 FR 59836).
                                                    threats (or lack thereof) to this species               public review. However, we cannot                      In 2015, CBD filed a complaint against
                                                    and existing regulations that may be                    guarantee that we will be able to do so.               the Service for failure to complete a 12-
                                                    addressing those threats.                               We will post all hardcopy submissions                  month finding for the Panama City
                                                      (4) Additional information concerning                 on http://www.regulations.gov.                         crayfish within the statutory timeframe.
                                                    the historical and current status, range,                 Comments and materials we receive,                   The Service entered into a settlement
                                                    distribution, and population size of this               as well as supporting documentation we                 agreement with CBD to address the
                                                    species, including the locations of any                 used in preparing this proposed rule,                  complaint; the court-approved
                                                    additional populations of this species.                 will be available for public inspection                settlement agreement specified that a
                                                      (5) Specific prohibitions and                         on http://www.regulations.gov, or by                   12-month finding for the Panama City
                                                    exceptions to those prohibitions that                   appointment, during normal business                    crayfish would be delivered to the
                                                    may be necessary and advisable for the                  hours, at the U.S. Fish and Wildlife                   Federal Register by September 30, 2017.
                                                    Panama City crayfish’s conservation. We                 Service, Panama City Ecological                        On September 21, 2017, the Court
                                                    intend to publish, as appropriate, a                    Services Field Office (see FOR FURTHER                 approved an extension, allowing the
                                                    more tailored proposed rule with                        INFORMATION CONTACT).                                  Service to submit this 12-month finding
                                                    provisions set forth under section 4(d)                                                                        to the Federal Register no later than
                                                    of the Act for public review and                        Public Hearing
                                                                                                                                                                   December 29, 2017.
                                                    comment in the future. Activities we are                  Section 4(b)(5) of the Act provides for
                                                    considering for potential exemption                     one or more public hearings on this                    Background
                                                    under a section 4(d) rule include, but                  proposal, if requested. Requests must be                  A thorough review of the taxonomy,
jstallworth on DSKBBY8HB2PROD with PROPOSALS




                                                    are not necessarily limited to,                         received by the date listed above in                   life history, and ecology of the Panama
                                                    exceptions for:                                         DATES. Such requests must be sent to the               City crayfish (Procambarus econfinae) is
                                                      (a) Specific soil and vegetation                      address shown in FOR FURTHER                           presented in the SSA report, version 1.0
                                                    restoration activities that will benefit                INFORMATION CONTACT. We will schedule                  (Service 2017). The SSA report
                                                    the Panama City crayfish;                               public hearings on this proposal, if any               documents the results of our
                                                      (b) Water quality improvement;                        are requested, and announce the dates,                 comprehensive biological status review
                                                      (c) Genetic and population                            times, and places of those hearings, as                for the Panama City crayfish, including
                                                    monitoring;                                             well as how to obtain reasonable                       an assessment of the potential stressors


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                                                    332                    Federal Register / Vol. 83, No. 2 / Wednesday, January 3, 2018 / Proposed Rules

                                                    to the species. The SSA report does not                 crayfish, Procambarus kilbyi, and the                  in more detail in the SSA report
                                                    represent a regulatory decision by the                  jackknife crayfish, Procambarus                        (Service 2017, pp. 23–24).
                                                    Service on whether the species should                   hubbelli, are found in the same habitat                   Panama City crayfish build burrows
                                                    be proposed for listing as an endangered                as the Panama City crayfish and may co-                for shelter and are categorized as
                                                    or threatened species under the Act. It                 occur with it (FWC 2017). The Panama                   secondary burrowers, which are
                                                    does provide the scientific basis that                  City crayfish is not known to hybridize                normally in surface water when it is
                                                    informs that decision, which involves                   with other species of crayfish.                        present on the hydric soils they inhabit
                                                    the further application of standards                       Historically, the species inhabited                 (Hobbs 1981). They construct burrows
                                                    within the Act and its implementing                     natural and often temporary bodies of                  that contact the water table as the
                                                    regulations and policies. The full SSA                  shallow fresh water within open pine                   surface water of their habitat recedes,
                                                    report can be found on the Service’s                    flatwoods and wet prairie-marsh                        and they occupy burrows when surface
                                                    Southeast Region website at https://                    communities. However, most of these                    water is absent or during periods of
                                                    www.fws.gov/southeast/ and at http://                   communities have been cleared for                      extreme water temperatures. They
                                                    www.regulations.gov under Docket No.                    residential or commercial development                  emerge from the burrows when surface
                                                    FWS–R4–ES–2017–0061.                                    or replaced with slash pine plantations.               water is present again or water
                                                                                                            The Panama City crayfish currently is                  temperatures are favorable. It appears
                                                    Species Description                                     known to inhabit the waters of grassy,                 that they can survive significant periods
                                                       The Panama City crayfish is a small,                 gently sloped ditches and swales, slash                of drought in their burrows when they
                                                    semi-terrestrial crayfish that grows to                 pine plantations, utility rights-of-way                can maintain contact with the water
                                                    about 2 inches (in) (50.8 millimeters                   and a few remnant parcels protected                    table. During these dry periods the
                                                    (mm)) in length (minus claws), and is                   under wetland and private easements                    Panama City crayfish excavates and
                                                    found in south-central Bay County,                      (FWC 2016, p. 2).                                      lives in unbranched burrows up to three
                                                    Florida. The species’ color pattern                        The highest densities of Panama City
                                                                                                                                                                   feet long that extend down to the water
                                                    consists of a medium dark-brown                         crayfish have been recorded in areas
                                                                                                                                                                   table, thereby enabling the species to
                                                    background color, lighter brown mid-                    with little to no shrub or tree cover
                                                                                                                                                                   remain adequately hydrated and survive
                                                    dorsal stripe, and darker brown                         (FWC 2016, p.2). Suitable habitat is
                                                                                                                                                                   (FWC 2016, p. 3).
                                                    dorsolateral stripes (FWC 2016, p.1).                   normally dominated by herbaceous
                                                    The Panama City crayfish was first                      vegetation. Lowest population densities                   Little is known about the specific
                                                    described by Hobbs in 1942 from Bay                     have occurred in small, open sites                     feeding habits of the Panama City
                                                    County, Panama City, Florida.                           where shrubs or trees were present, or                 crayfish. Observations on Panama City
                                                    Currently, the Panama City crayfish is                  in the furrows between bedding rows in                 crayfish that were held in aquaria
                                                    classified in the family Cambaridae and                 some pine plantations (Keppner and                     spanning 1.5 plus years (Keppner 2014)
                                                    is considered a valid taxon by the                      Keppner 2005). When encountered in                     indicate that they are detritivores and
                                                    scientific community (Taylor et al. 1996,               dense titi (Cyrilla racemiflora and                    herbivores. Specimens were offered
                                                    2007; Integrated Taxonomic Information                  Cliftonia monophylla) swamps, the                      dead animal material, but they avoided
                                                    System 2017). The life history of the                   species was associated with temporarily                it in favor of processing the substrate for
                                                    Panama City crayfish specifically is not                inundated areas open to the sun with                   particles of prepared fish food and the
                                                    well known. Cambarid crayfish may live                  some herbaceous vegetation. Such sites                 fresh aquatic vegetation that were
                                                    about 2.5 to 3 years (Hobbs 2001,                       may be considered secondary or                         provided as primary food sources.
                                                    p. 977), with a generation period of 2                  suboptimal habitat for the species. On                 Herbaceous vegetation likely serves as a
                                                    years. For this family of crayfish, the                 sites where mixed habitat features are                 food source for the Panama City
                                                    majority breed more than once, with                     present (e.g., partially wooded sites or               crayfish.
                                                    mating among mature yearlings                           sites with permanent, deep-water                          The Panama City crayfish historically
                                                    frequent; however, many individuals do                  ponds), the Panama City crayfish                       ranged throughout south-central Bay
                                                    not become sexually active until late                   appears to select favorable areas                      County, Florida within a 56 square mile
                                                    summer or fall. Females may produce                     dominated by herbaceous vegetation,                    area (see Figure 1). The historical range
                                                    between 30 and 160 eggs, and have been                  with shallow or fluctuating water levels               likely created one population connected
                                                    found with eggs and/or young from                       (FWC 2016, p. 3; Keppner and Keppner                   by core and secondary soils. As urban
                                                    March through September. Juveniles are                  2005).                                                 growth came to Panama City, the range
                                                    most frequently found in the summer                        The Panama City crayfish relies on                  became fragmented and isolated
                                                    and have been observed through                          particular soil types for burrow                       patches. Today, the species has 13
                                                    December, so young appear to be                         construction and supporting the                        localized populations that can be
                                                    produced from at least March through                    herbaceous vegetation; these soil types                divided into two distinct groups: The
                                                    December. Juveniles can be carried                      are categorized as core or secondary                   western and eastern group. The western
                                                    overland by sheet flow during rainy                     soils. Core soils provide the best                     group includes 8 separate populations
                                                    periods, which aids in dispersal                        substrate to support the species;                      and the eastern group includes 5
                                                    (Keppner and Keppner 2002, p. 11).                      secondary soils are less ideal but still               separate populations. The 13
                                                       Eight crayfish species are known to                  used. The core and secondary soil types                populations are described in more detail
                                                    occur within the range of the Panama                    that support Panama City crayfish                      in the SSA report (Service 2017, pp. 35–
                                                    City crayfish, although only the hatchet                within their known range are described                 54).
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                                                                           Federal Register / Vol. 83, No. 2 / Wednesday, January 3, 2018 / Proposed Rules                                             333




                                                    Species Needs and Viability                             surface water to prevent desiccation of                events), and representation (the ability
                                                                                                            individuals and populations. The                       of the species to adapt to changing
                                                       The Panama City crayfish needs
                                                                                                            species needs both adequate water                      environmental conditions). Using
                                                    freshwater wetlands that support
                                                                                                            quality and quantity to fulfill its life               various time frames and the current and
                                                    herbaceous vegetation, which is
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                                                                                                            history.                                               projected resiliency, redundancy, and
                                                    important to the Panama City crayfish
                                                    for food, shelter, and detritus formation.                We describe the Panama City                          representation, we describe the species’
                                                    The species needs core or secondary                     crayfish’s viability by characterizing the             level of viability over time. For the
                                                    soils to provide the proper sediment                    status of the species in terms of its                  Panama City crayfish to maintain
                                                    structure for burrow construction and to                resiliency (ability of the populations to              viability, its populations or some
                                                    support the herbaceous vegetation. The                  withstand stochastic events),                          portion thereof must be resilient. A
                                                    Panama City crayfish needs access to                    redundancy (ability of the species to                  number of factors influence the
                                                    groundwater (through burrowing) or                      withstand large-scale, catastrophic                    resiliency of Panama City crayfish
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                                                    334                         Federal Register / Vol. 83, No. 2 / Wednesday, January 3, 2018 / Proposed Rules

                                                    populations, including the inbreeding                           maximize habitat occupancy influence                  medium, or low (see Table 1). We
                                                    coefficient, population isolation, and                          those factors, thereby increasing the                 evaluated each population and assigned
                                                    population abundance. Elements of                               resiliency of populations. These                      it a high, medium, or low condition
                                                    Panama City crayfish habitat that                               demographic and habitat factors are                   category for each factor, as well as an
                                                    determine whether Panama City                                   discussed here; for each factor, we                   overall condition.
                                                    crayfish populations can grow to                                assigned a condition category of high,

                                                                                      TABLE 1—DEMOGRAPHIC AND HABITAT FACTORS FOR PANAMA CITY CRAYFISH
                                                                                                                                [Service 2017, p. 64]

                                                                                               Demographic factors                                                       Habitat elements
                                                       Condition                                   Population                                                                                            Suitable
                                                       category              Inbreeding                                 Population        Freshwater quality &
                                                                                                    isolation                                                            Herbaceous ground cover         habitat
                                                                             coefficient                                abundance              quantity
                                                                                                      (km)                                                                                               (acres)

                                                    High ..............             >0.400                   <0.5               >51      <33% developed and          easements or ROW with >15                 >800
                                                                                                                                           unsuitable.                 acres that is managed.
                                                    Moderate ......           0.200–0.400                0.5–2.0              21–50      33–66% developed            easements or ROW with ≤15              100–800
                                                                                                                                           and unsuitable.             acres suitable habitat that is
                                                                                                                                                                       managed; or timber lands.
                                                    Low ..............              <0.200                     >2              1–20      >66% developed and          no managed lands, habitat cur-            <100
                                                                                                                                           unsuitable acres.           rently a titi monoculture.
                                                       Population Isolation: Least-cost path distance to nearest population in kilometers.
                                                       Population Abundance: Based on population sampling counts from all conducted surveys recorded.
                                                       Freshwater Quality & Quantity: Percentage of developed and unsuitable acres within the area supporting each population.
                                                       Herbaceous Ground Cover: Includes land with and without easements, size of easements, and management activities.
                                                       Suitable Habitat: Acres of undeveloped core and secondary soils within the area supporting each population.


                                                       Inbreeding coefficient: The Panama                           working hypothesis was that ditches                   burrows, and we currently do not have
                                                    City crayfish, once connected through                           within the range promote movement,                    an estimate of detection probability
                                                    core and secondary soils within a 56                            especially during flooding events. This               using this protocol. The protocol is
                                                    square mile area, is now separated into                         idea is supported by observations of                  quantitative and results in a catch per
                                                    13 populations that, when combined,                             some localized movements of Panama                    standard unit effort estimate of the
                                                    total a significantly smaller area than                         City crayfish into previously                         population. We use population counts
                                                    occupied by the historical,                                     unoccupied ditches after recent flooding              to assess the relative population size
                                                    interconnected population. A recent                             where they were not seen in these new                 across the range of the species.
                                                    genetic analysis of population                                  locations during the next sampling                       Freshwater quality and quantity:
                                                    differentiation and clustering to assess                        event.                                                Although crayfish are facultative air
                                                    population structure of the Panama City                            Because the landscape occupied by                  breathers, moisture is required to
                                                    crayfish quantified each population’s                           the Panama City crayfish is spatially                 facilitate the respiratory process
                                                    inbreeding coefficient numbers (Duncan                          heterogeneous, it is important to                     (Longshaw and Stebbing 2016, p. 327).
                                                    et al. 2017). An inbreeding coefficient                         understand how certain landscape                      Burrowing to groundwater or access to
                                                    number shows the probability of                                 features affect the species’ ability to               surface water are both important habitat
                                                    inheriting two copies of the same allele                        move in order to meet requirements for                features needed to prevent desiccation
                                                    from an ancestor that occurs on both                            foraging, migration, or other movement-               of individuals and populations.
                                                    sides of the pedigree. For Panama City                          dependent processes (Crooks and                       Declines in water quality are known to
                                                    crayfish populations, the differences in                        Sanjayan 2006 as cited in Duncan et al.               present a significant threat to other
                                                    inbreeding coefficient numbers likely                           2017). We relied on a landscape ‘‘Least               species of crayfish (and presumably to
                                                    correspond to patterns of fragmentation                         Cost Path’’ land cover analysis                       PCC). These declines can range from
                                                    from urban development and not                                  conducted by Duncan et al. (2017) to                  oxygen-deficient conditions resulting
                                                    necessarily from selective pressures                            assist in determining what may affect                 from algal blooms, sewage spills, or
                                                    maintaining adaptive differences. Little                        genetic connectivity in Panama City                   localized leaks to pollution originating
                                                    work has been done on the population                            crayfish and inform our understanding                 from roadway runoff or chemical spills
                                                    genetics of wild crayfish populations.                          of population isolation.                              (Acosta and Perry 2001). The Panama
                                                    We have no comparison for values in                                Population abundance: The size of an               City crayfish often inhabits ditches and
                                                    crayfish species of expected inbreeding                         individual population coupled with age                swales close or adjacent to commercial
                                                    coefficients (Duncan et al. 2017), and                          and sex classifications can be used as an             and private properties, which may affect
                                                    treat this as a relative measure. Thus, we                      indicator of resiliency. Within the SSA               the water quality at these sites. We used
                                                    ranked individual populations into                              report, we have summarized the years                  a proxy measure of water quality and
                                                    three numerically distinct breaks: Low                          that surveys of varying levels were                   quantity based on the amount of
                                                    when inbreeding coefficients were less                          completed within each population. The                 development surrounding the
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                                                    than 0.200, moderate when they ranked                           protocol currently used for PCC                       population. We assumed that greater
                                                    between 0.200–0.400, and high when                              monitoring typically depends on dip-net               acreage in developed and unsuitable
                                                    results were greater than 0.400.                                sampling when sufficient surface water                landcover types (which includes
                                                       Population isolation: To promote                             is present and nondestructive                         transportation and other development-
                                                    genetic connectivity in Panama City                             evaluation of crayfish burrows. The                   related types) is correlated with declines
                                                    crayfish, we must have an                                       protocol can miss specimens in                        in this habitat element. Herbaceous
                                                    understanding of their potential abilities                      vegetation and does not sample                        ground cover: Herbaceous vegetation is
                                                    to move between populations. One                                individuals living below ground in                    important to the Panama City crayfish


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                                                                           Federal Register / Vol. 83, No. 2 / Wednesday, January 3, 2018 / Proposed Rules                                             335

                                                    for food, detritus formation, and cover.                Docket No. FWS–R4–ES–2017–0061 on                      long-term Panama City crayfish
                                                    Absence of vegetation increases                         http://www.regulations.gov.                            persistence. For example, roadside ditch
                                                    exposure of this small crayfish to                                                                             maintenance and construction activities
                                                                                                            Summary of Factors Affecting the
                                                    predation and reduces availability of                                                                          have resulted in the destruction of
                                                                                                            Species
                                                    food. Suitable habitat: Species sampling                                                                       several crayfish sites.
                                                    efforts and a recent landscape modeling                    The Act directs us to determine                        While ditch maintenance activities
                                                    analysis support the theory that the                    whether any species is an endangered                   may have temporary negative impacts
                                                    Panama City crayfish almost exclusively                 species or a threatened species because                on the species, if conducted using
                                                    relies on core and secondary soils.                     of any factors affecting its continued                 conservation management principles,
                                                    These soils provide the sediment                        existence. We reviewed the potential                   they may provide long-term habitat
                                                    structure needed for burrow                             risk factors (i.e., threats, stressors) that           improvements that support Panama City
                                                    construction to the water table and also                could be affecting the Panama City                     crayfish presence. For example, the
                                                    support the herbaceous vegetation upon                  crayfish now and in the future. In this                design of the ditch helps determine
                                                    which the species relies for food and                   proposed rule, we will discuss in detail               whether it can support Panama City
                                                    cover. Lands supporting the Panama                      only those factors that could                          crayfish. Swales and ditches with
                                                    City crayfish must be of sufficient size                meaningfully impact the status of the                  herbaceous vegetation and a 3:1 or
                                                    to sustain a population, but we don’t                   species. The primary risk factors (i.e.,               shallower slope are more likely to
                                                    know the minimum size, as many                          threats) affecting the status of the                   support Panama City crayfish than
                                                    factors influence a Panama City crayfish                Panama City crayfish are habitat loss                  ditches with a steeper slope (FWC 2017,
                                                    population, including other habitat                     and degradation, habitat fragmentation,                p. 22).
                                                    conditions. The recent work of Duncan                   and subpopulation isolation due to
                                                                                                                                                                      Infrastructure development has
                                                    et al. (2017) showed that all remaining                 development (Factor A from the Act).
                                                                                                                                                                   impacted, or is anticipated to impact,
                                                    populations with >800 acres of suitable                 Additional stressors to the species
                                                                                                                                                                   several crayfish sites (Keppner and
                                                    habitat supporting them were                            include collection for bait (Factor B),
                                                                                                                                                                   Keppner 2001, pp. 13–14, 2004, p. 9).
                                                    genetically healthy, and population                     disease (Factor C), off-road vehicle use
                                                                                                            (Factor A), and insecticide application                For example, several proposed road
                                                    counts support this as well.                                                                                   construction or expansion projects, such
                                                       Maintaining representation in the                    (Factor E); however, our analysis shows
                                                                                                            that while these stressors may be                      as the widening of Star Avenue and
                                                    form of genetic or ecological diversity is
                                                                                                            impacting individual Panama City                       Kern Avenue and the widening and
                                                    important to maintain the Panama City
                                                                                                            crayfish, they are not having species-                 hardening of Tram Road, may impact
                                                    crayfish’s capacity to adapt to future
                                                                                                            wide impacts. For a full description of                Panama City crayfish habitat in the
                                                    environmental changes. The 13
                                                                                                            all identified stressors, refer to chapter             future. Infrastructure development can
                                                    remaining populations show relatively
                                                                                                            4 of the SSA report (Service 2017).                    eliminate suitable Panama City crayfish
                                                    high genetic differentiation with
                                                                                                                                                                   habitat by removing the required
                                                    inbreeding coefficients ranging from                    Factor A. The Present or Threatened                    herbaceous vegetation and digging up
                                                    0.214 to 0.493 and associated acreages                  Destruction, Modification, or
                                                    of suitable habitat ranging from 5 acres                                                                       the surrounding soils.
                                                                                                            Curtailment of Its Habitat or Range                       Silvicultural practices such as
                                                    to 5,309 acres.
                                                       Redundancy reduces the risk that a                      Development projects and land                       ditching and bedding, roller chopping,
                                                    large portion of the species’ range will                conversion can result in direct loss of                installing fire breaks, and constructing
                                                    be negatively affected by a natural or                  habitat, as well as fragmentation and                  roads can alter the hydrology of Panama
                                                    anthropogenic catastrophic event at a                   isolation of populations. The effects of               City crayfish sites, create physical
                                                    given point in time. Species that have                  development may also include                           barriers to crayfish movement, and
                                                    resilient populations spread throughout                 alterations to water quality and                       destroy underground burrows (Hobbs
                                                    their historical range are less susceptible             quantity. Historically, the Panama City                2001, p. 988; Keppner and Keppner
                                                    to extinction (Carroll et al. 2010;                     crayfish inhabited natural and often                   2001, p. 13, 2004, p. 10; FWC 2006, p.
                                                    Redford et al. 2011). The Panama City                   temporary bodies of shallow fresh water                10). These activities may contribute to
                                                    crayfish historically lacked redundancy                 within open pine flatwoods and wet                     the isolation of Panama City crayfish
                                                    in that its historical range consisted of               prairie-marsh communities (Hobbs                       populations. Fire suppression and high
                                                    one population of interconnected soils.                 1942). The Panama City crayfish’s                      tree density on silvicultural sites can
                                                    Today, there is a distinct genetic                      natural habitat (wet pine flatwoods) has               reduce herbaceous groundcover
                                                    difference between individual patches                   been lost or degraded through                          necessary for suitable crayfish habitat
                                                    located in the western range versus                     residential, commercial, and industrial                (Keppner and Keppner 2001, p. 13,
                                                    individual patches within the eastern                   development, as well as conversion to                  2004, p. 10; FWC 2006, p. 27). Similarly,
                                                    range, which likely corresponds to                      intensive pine silviculture and for                    removal of tree canopy cover, changes
                                                    patterns of fragmentation from urban                    ranching and farming uses. It is likely                in ground cover vegetation, and
                                                    development as well as some natural                     that no unaltered natural pine flatwoods               associated changes in water quality and
                                                    wetland buffers (creeks, stream bodies)                 remain within the Panama City                          surface water availability are all
                                                    (Duncan et al. 2017).                                   crayfish’s current range.                              possible changes associated with the
                                                                                                               Most known Panama City crayfish                     effects of conversion to farming and
                                                    Summary of Biological Status and                        occurrences are in human-altered                       ranching practices, such as cattle
                                                    Threats                                                 habitats and are vulnerable to further                 grazing (e.g., Jansen and Robertson
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                                                      We completed a comprehensive                          loss or alteration. Although artificial                2001, pp. 71–73). These activities
                                                    assessment of the biological status of the              habitats such as roadside ditches and                  negatively impact the habitat of the
                                                    Panama City crayfish, and prepared a                    rights-of-way have allowed the Panama                  Panama City crayfish. Although
                                                    report of the assessment, which                         City crayfish to persist in areas from                 minimal changes are expected to occur
                                                    provides a thorough account of the                      which they would otherwise likely have                 due to farming and ranching practices,
                                                    species’ overall viability. In this section,            been extirpated, human activities can                  conversion from silviculture to grazing
                                                    we summarize the conclusions of that                    alter the hydrology and configuration of               use has occurred on lands adjacent the
                                                    assessment, which can be accessed at                    these sites, making them unsuitable for                crayfish’s range.


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                                                    336                    Federal Register / Vol. 83, No. 2 / Wednesday, January 3, 2018 / Proposed Rules

                                                       Freshwater crayfish may be sensitive                 limited and we do not expect off-road                  guidelines are not regulatory in nature.
                                                    to declines in water quality and declines               vehicle use is resulting in species-wide               We are not aware of any regulatory
                                                    have been identified as a threat to other               impacts.                                               mechanisms in place to address the
                                                    crayfish species. Water quality declines                                                                       threat of habitat loss, fragmentation, and
                                                                                                            Factor B. Overutilization for
                                                    can range from oxygen-deficient                                                                                degradation due to development.
                                                                                                            Commercial, Recreational, Scientific, or
                                                    conditions resulting from algal blooms
                                                                                                            Educational Purposes                                   Factor E. Other Natural or Manmade
                                                    or sewage spills to pollution originating
                                                                                                               Crayfish may be recreationally                      Factors Affecting Its Continued
                                                    from roadway runoff, pesticide
                                                                                                            harvested for fish bait. Within the range              Existence
                                                    applications, or chemical spills (Acosta
                                                    and Perry 2001, p. 46). Given the level                 of the Panama City crayfish, several of                   The Service considered several
                                                    of development throughout the range of                  the areas where the species occurs are                 additional stressors to the Panama City
                                                    the Panama City crayfish and the                        known to be utilized by locals collecting              crayfish, including chemical application
                                                    occurrences of Panama City crayfish                     fish bait (FWC 2016, p.11; Keppner and                 and sea level rise.
                                                    adjacent to private properties, runoff                  Keppner 2001, 2005). However,                             Mosquitocides are used within the
                                                    from roads or improper application of                   although harvesting individual crayfish                range of the Panama City crayfish to
                                                    chemicals, such as pesticides or                        at these sites has been documented, the                treat both larval and adult mosquitoes.
                                                    fertilizers, may negatively impact water                actual species collected are unknown.                  The mosquitocides registered for use
                                                    quality and have direct impacts on the                  Therefore, while harvesting crayfish                   within the range of the Panama City
                                                    species.                                                may be impacting individual Panama                     crayfish do not pose known threats to
                                                       The majority of known Panama City                    City crayfish, we find that it is not                  water quality if applied per label
                                                    crayfish occurrences in the western part                having a species-wide impact.                          directions (FWC 2016, p. 10). Fertilizers,
                                                    of the range are in roadside ditches and                   Florida State Code 68A–9.002                        insecticides, and herbicides may pose a
                                                    swales that are isolated from other                     authorizes the Director of the Florida                 risk to Panama City crayfish if applied
                                                    Panama City crayfish populations by                     Fish and Wildlife Conservation                         inappropriately.
                                                    roads, development, and land use                        Commission to issue permits to collect                    The Panama City crayfish was
                                                    changes. Fragmentation and isolation                    any wildlife species for ‘‘scientific,                 included in a statewide vulnerability
                                                    can increase vulnerability to local                     educational, exhibition, propagation,                  assessment for approximately 1000
                                                    extirpation due to adverse genetic,                     management or other justifiable                        species in Florida (Reece et al. 2013,
                                                    demographic, and environmental                          purposes.’’ Permits have been issued for               Hocter et al. 2014) using a Standardized
                                                    events. Further, when Panama City                       biologists conducting surveys on the                   Index of Vulnerability and Value
                                                    crayfish have been extirpated from an                   Panama City crayfish; however, the                     Assessment (SIVVA; Reece and Noss
                                                    area, lack of habitat connections                       Panama City crayfish is not known to be                2014). Based on the data used in this
                                                    between sites can prevent Panama City                   targeted for significant scientific or                 assessment, the Panama City crayfish
                                                    crayfish from recolonizing the newly                    educational collections.                               did not meet the vulnerability
                                                    vacant sites (FWC 2006, p. 10). Recent                                                                         assessment criteria. The assessment
                                                    genetic work indicates the isolation in                 Factor C. Disease or Predation                         used a 10 meter digital elevation model
                                                    the western portion of the range has                       Disease agents and pests identified for             ‘‘bathtub’’ projection that showed 2
                                                    resulted in inbreeding and drift (Duncan                freshwater crayfish include viruses,                   meters of sea level rise and overlapped
                                                    et al. 2017, p. 17).                                    bacteria, rickettsia-like organisms, fungi,            these projections with species’ ‘element
                                                       In addition to the effects on habitat                protistans, and metazoans (Evans et al.                occurrences.’ (Reece et al 2013). The
                                                    described above, many of the activities                 2002, p. 1). There is no reported                      assessment focused on those species
                                                    contributing to habitat loss and                        information on the presence of disease                 which had 50% or more of their
                                                    degradation can also directly harm or                   or parasites in the Panama City crayfish               occurrences intersecting with the sea
                                                    kill Panama City crayfish. Continuous                   to date. Nothing indicates that predation              level rise projection. The Panama City
                                                    loss of individuals can eventually lead                 or competition by native or non-native                 crayfish did not meet this criteria.
                                                    to extirpation of isolated populations. In              predators is currently affecting Panama                Overall, little suitable habitat for
                                                    particular, roadside maintenance,                       City crayfish at the species level.                    Panama City crayfish will be affected by
                                                    dredging, and infrastructure                                                                                   sea level rise (Hocter et al. 2014).
                                                    development in roadside ditches and                     Factor D. The Inadequacy of Existing
                                                    silvicultural and farming activities, if                Regulatory Mechanisms                                  Conservation Actions
                                                    done without appropriate safeguards,                      The following existing regulatory                       Several private lands within the
                                                    have the potential to kill, harm, or                    mechanisms were considered and                         Panama City crayfish’s range are being
                                                    displace Panama City crayfish due to                    discussed as they relate to the stressors,             managed under conservation easements
                                                    the removal by heavy machinery of soil                  under the applicable Factors, affecting                for the species. These easements largely
                                                    from crayfish sites. In addition, fill                  the Panama City crayfish: Florida State                cover wet pine flatwoods and wet
                                                    placed on sites in preparation for                      Code 68A–9.002 (Factor B).                             prairie habitats. Other private lands are
                                                    construction activities can entomb                        The Panama City crayfish is currently                inaccessible to surveyors, but if they
                                                    crayfish in their burrows                               identified as a State Species of Special               lack significant disturbance and have
                                                       Off-road vehicle use may impact the                  Concern in Florida (Florida State Code                 suitable habitat for the species, they are
                                                    Panama City crayfish by crushing, as                    68A–27.005). Species of Special                        likely occupied by Panama City
                                                    well as impacting the habitat through                   Concern require individuals to obtain a                crayfish.
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                                                    rutting of the soil and destruction of                  permit from the FWC Executive Director                    Areas in silviculture adjacent to
                                                    vegetation (FWC 2016, p. 11). Off-road                  in order to take, possess, transport, or               human-altered habitats may serve as
                                                    vehicle use has been documented in                      sell the species.                                      refuges for Panama City crayfish, and
                                                    areas within the eastern part of the                      FWC has developed voluntary draft                    silvicultural BMPs require operators to
                                                    Panama City crayfish’s range along Gulf                 guidelines for developers to consider                  minimize impacts to Panama City
                                                    Power rights-of-way. Gulf Power has                     when undertaking projects that may                     crayfish. Use of BMPs for agriculture
                                                    blocked access to these rights-of-way                   impact Panama City crayfish and its                    and grazing can also help minimize
                                                    with gates, so access to these areas is                 habitat (FWC 2016). However, these                     impacts to aquatic species (e.g., Florida


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                                                                           Federal Register / Vol. 83, No. 2 / Wednesday, January 3, 2018 / Proposed Rules                                              337

                                                    Department of Agriculture and                           how the stressors associated with                      refer to the SSA report (Service 2017)
                                                    Consumer Services 2008, p. 1). Gulf                     habitat loss, fragmentation, and                       for the full analysis of the future
                                                    Power Company manages rights-of-way                     degradation from residential and                       scenarios.
                                                    along approximately 114 acres of land                   commercial development will influence                     In scenario one, the ‘‘status quo’’
                                                    that is populated by the Panama City                    resiliency, redundancy, and                            scenario, we considered the
                                                    crayfish. The Service and FWC have a                    representation for the Panama City                     development most likely to occur. Based
                                                    management agreement that provides                      crayfish throughout its current known                  on the SERAP model, this was
                                                    recommended BMPs to Gulf Power                          range using a series of plausible                      development with a ≥80 percent
                                                    Company; the management practices                       scenarios for 2030, 2050, and 2070. We                 probability. Under this scenario,
                                                    through this agreement have proven                      predicted both future population factors               Panama City crayfish will lose 1,401 to
                                                    effective as the crayfish continue to                   (inbreeding and population isolation)                  3,096 acres of habitat rangewide as
                                                    thrive within the easement areas.                       and habitat factors (water quality and                 developed land increases from 20,221 to
                                                                                                            quantity, herbaceous ground cover, and                 25,040 acres. This loss, fragmentation,
                                                    Current Condition                                                                                              and degradation of habitat would reduce
                                                                                                            suitable habitat) and evaluated these to
                                                       The historical range of the Panama                   inform our future conditions.                          the number of resilient populations in
                                                    City crayfish included a 56-square-mile                    To predict potential future changes                 high or moderate condition from nine
                                                    area in Bay County, Florida. It was                     related to urban growth, we used layers                currently to five by 2050. This loss of
                                                    likely one contiguous population within                 from the Southeast Regional Assessment                 resiliency comes from both a reduction
                                                    open pine flatwoods and prairie-marsh                   Project (SERAP, from the Biodiversity                  in habitat elements as well as the effects
                                                    communities providing connectivity                      and Spatial Analysis Center at North                   of isolation and drift on the populations
                                                    across the landscape. Currently, the                    Carolina State University; 60m                         themselves.
                                                    species is found in 13 genetically                      resolution), a modification of the                        Under the ‘‘status quo’’ scenario, only
                                                    distinct populations within the                         SLEUTH Projected Urban Growth model                    one resilient population (the St. Joe
                                                    boundaries of its historical range.                     (Jantz et al. 2010, entire; Terando et al.             population) is predicted to remain in
                                                    Within its range, 61 percent (9,180                     2014, entire). SERAP identifies the                    the western group by 2050. This results
                                                    acres) of habitat with core soils and 46                parameters in global and regional                      in a loss of redundancy and
                                                    percent (5,646 acres) of habitat with                   models that are most likely to affect the              representation, as only one resilient
                                                    secondary soils remain undeveloped,                     Southeast region’s climate and local                   population will remain in the western
                                                    and the total amount of available                       landscape dynamics, with the goal of                   group. In the eastern group, four
                                                    suitable habitat based on soils is 54                   providing decision makers with                         resilient populations are predicted to
                                                    percent of the historical habitat                       information about low-probability, high-               persist through 2070.
                                                    available to the species.                               impact climate extremes through                           In scenario two, the ‘‘intermediate
                                                       The current condition is a qualitative               downscaled models and threats                          development’’ scenario, we considered
                                                    estimate based on an analysis of the                    analysis. We used these products to map                development with a moderate potential
                                                    three population factors (inbreeding,                   future predicted changes in                            to occur. Based on the SERAP model,
                                                    population isolation, and population                    urbanization in 2030, 2050, and 2070.                  this was development with a ≥30
                                                    sampling/relative abundance) and three                  The uncertainty associated with the                    percent probability of occurring. In this
                                                    habitat elements (water quality/                        SLEUTH model increases in time, as the                 scenario, the Panama City crayfish will
                                                    availability, herbaceous ground cover,                  species’ response to the dynamic nature                lose 2,252 to 4,854 acres of habitat
                                                    and suitable habitat). Overall population               of the variables becomes less predictive.              rangewide as developed land increases
                                                    and habitat condition rankings were                     There is a greater confidence in                       from 20,221 to 27,332 acres. This loss,
                                                    determined by combining the three                       predicting potential development and                   fragmentation, and degradation of
                                                    population factors and three habitat                    the species’ response to changes in the                habitat is predicted to reduce the
                                                    elements using the most frequent score                  landscape in the near future rather than               number of resilient populations in high
                                                    for individual factors as the overall                   the distant future.                                    or moderate condition from nine
                                                    score. Of the 13 populations described,                    To address uncertainty associated                   currently to four by 2070. This loss of
                                                    the current conditions show 4 (31                       with the degree and extent of potential                resiliency comes from both a reduction
                                                    percent) populations are estimated to                   future stressors and their impacts on                  in habitat elements as well as the effects
                                                    have high resiliency, 5 (38 percent)                    species’ requisites, the 3Rs were                      of isolation and drift on the populations
                                                    moderate resiliency, and 4 (31 percent)                 assessed using three scenarios: status                 themselves.
                                                    low resiliency. In the western group of                 quo development (i.e., ≥80 percent                        Under the ‘‘intermediate
                                                    populations, 4 populations have low                     probability of occurring), moderate                    development’’ scenario, only one
                                                    resiliency, 3 populations have moderate                 development (≥30 percent probability of                resilient population (the St. Joe
                                                    resiliency, and 1 has high resiliency. In               occurring), and high development (≥0                   population) is predicted to remain in
                                                    the eastern group, 2 populations have                   percent probability of occurring). The                 the western group by 2050. This results
                                                    moderate resiliency and 3 populations                   scenarios included projecting possible                 in a loss of redundancy and
                                                    have high resiliency. Generally, genetic                future development using the SERAP                     representation, as only one resilient
                                                    variation is low and inbreeding is high                 model (Jantz et al. 2010, entire; Terando              population will remain in the western
                                                    across the range, which indicate a high                 et al. 2014, entire). They also describe               group. In the eastern group, three
                                                    degree of current population isolation.                 the predicted effects of the development               resilient populations are predicted to
                                                                                                            on loss and fragmentation of suitable                  persist through 2070.
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                                                    This pattern is generally more
                                                    pronounced in the sampling locations in                 habitat rangewide and on each of 11                       In scenario three, ‘‘high development’’
                                                    the west (heavily urbanized areas).                     known populations, and draw                            or ‘‘worst case’’ scenario, we considered
                                                                                                            inferences about population health                     the development that is least likely to
                                                    Future Condition                                        based on the work of Duncan et al.                     occur. Based on the SERAP model, this
                                                      For the purpose of this assessment,                   (2017, entire). We excluded two                        was development with at >0 percent
                                                    we define viability as the ability of the               populations (College Point and City of                 probability of occurring. In this
                                                    species to sustain populations in the                   Lynn Haven) from our scenario analysis                 scenario, the Panama City crayfish will
                                                    wild over time. This discussion explains                due to insufficient available data. Please             lose 3,233 to 6,130 acres of habitat


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                                                    338                    Federal Register / Vol. 83, No. 2 / Wednesday, January 3, 2018 / Proposed Rules

                                                    rangewide as developed land increases                   would not persist in the near term; in                 major losses of resiliency,
                                                    from 20,221 to 28,899 acres. This loss,                 other words, the risk of the Panama City               representation, and redundancy for
                                                    fragmentation, and degradation of                       crayfish significantly declining in the                Panama City crayfish in the foreseeable
                                                    habitat is predicted to reduce the                      near term is low given that it has                     future. Especially problematic is the
                                                    number of resilient populations in high                 persisted despite historical levels of                 predicted complete loss of resilience
                                                    or moderate condition from nine                         habitat loss. The current conditions as                and redundancy from the western
                                                    currently to three by 2070. This loss of                assessed in the Panama City crayfish                   populations, which reduces half of the
                                                    resiliency comes from both a reduction                  SSA report show that only 43 to 54                     representation of Panama City crayfish.
                                                    in habitat elements as well as the effects              percent of the original lands historically             These combined losses under even the
                                                    of isolation and drift on the populations               available to the Panama City crayfish                  most probable status quo scenario make
                                                    themselves.                                             remain potentially available for use by                the ability of Panama City crayfish to
                                                       Under the ‘‘high development’’                       the Panama City crayfish. However,                     sustain its populations into the
                                                    scenario, all resilient populations in the              while the species’ habitat has been                    foreseeable future questionable
                                                    western group are predicted to be lost                  reduced by at least 46 percent, the                    assuming current levels of protection
                                                    by 2050, resulting in a loss of all                     species currently consists of 13                       and management.
                                                    representation and redundancy in the                    populations, 9 of which are highly to                     We have carefully assessed the best
                                                    western group. In the eastern group,                    moderately resilient and found across                  scientific and commercial information
                                                    three resilient populations are predicted               its historical range. Further, despite                 available regarding the past, present,
                                                    to persist through 2070.                                changes to the crayfish’s natural habitat              and future threats to the Panama City
                                                                                                            of wet pine flatwoods, the species                     crayfish. Habitat loss from development
                                                    Determination
                                                                                                            currently persists using artificial                    is occurring rangewide and has resulted
                                                       Section 4 of the Act (16 U.S.C. 1533),               habitats such as roadside ditches and                  in the fragmentation of the landscape.
                                                    and its implementing regulations at 50                  rights-of-way although these sites may                 The fragmentation of suitable habitat
                                                    CFR part 424, set forth the procedures                  become unsuitable long term due to                     has caused the isolation of existing
                                                    for adding species to the Federal Lists                 anthropogenic activities that can alter                populations limited to ditches, swales,
                                                    of Endangered and Threatened Wildlife                   their hydrology or configuration.                      slash pine plantations, and utility
                                                    and Plants. Under section 4(a)(1) of the                Therefore, we conclude that the current                rights-of-ways. At the population level,
                                                    Act, we may list a species based on: (A)                risk of extinction of the Panama City                  Panama City crayfish now exists in 13
                                                    The present or threatened destruction,                  crayfish is sufficiently low that it does              populations. Currently, four populations
                                                    modification, or curtailment of its                     not meet the definition of an                          are estimated to maintain high
                                                    habitat or range; (B) Overutilization for               endangered species under the Act.                      resiliency; five are estimated to have
                                                    commercial, recreational, scientific, or                   The Act defines a threatened species                moderate resiliency; and four are
                                                    educational purposes; (C) Disease or                    as any species that is ‘‘likely to become              estimated to have low resiliency,
                                                    predation; (D) The inadequacy of                        endangered throughout all or a                         including the two populations that are
                                                    existing regulatory mechanisms; or (E)                  significant portion of its range within                in the low condition but were excluded
                                                    Other natural or manmade factors                        the foreseeable future.’’ We find that the             from future scenario analysis because of
                                                    affecting its continued existence.                      status of the Panama City crayfish meets               inadequate data.
                                                       We have carefully assessed the best                  the definition of a threatened species.                   At the species level, the 13 Panama
                                                    scientific and commercial information                   Based on the biology of the species and                City crayfish populations are broken
                                                    available regarding the past, present,                  the threats acting on it, the foreseeable              down into an eastern group of five
                                                    and future threats to the Panama City                   future used in the determination was 20                populations and a western group of
                                                    crayfish. Our analysis of this                          to 30 years. The generation time for the               eight populations based on the
                                                    information indicates that, at the species              species is 2 years with a life-span up to              characteristics of Panama City crayfish
                                                    level, habitat development (Factor A) is                3.5 years; the period of 20–30 years                   and its geographic distribution.
                                                    the primary factor affecting the Panama                 encompasses 10–15 generations, which                   Currently, four populations, all in the
                                                    City crayfish now and into the future.                  is more than sufficient time to                        west, are in low condition, including
                                                    There may be additional infrastructure                  determine the species’ response to the                 the two that were excluded from future
                                                    projects (e.g. roads, ditches, etc.) that               stressors. Although the future scenarios,              condition analysis because of
                                                    affect the hydrology within the range of                which were snapshots in time for                       inadequate data. These two populations
                                                    the Panama City crayfish as a result of                 predicting resiliency, redundancy, and                 represent 31 percent of the known
                                                    forest clearing for permanent rights of                 representation extended through 2070,                  populations overall and 50 percent of
                                                    way or silviculture. Additionally, the                  the uncertainty as to the outcomes with                the western group, and, although still in
                                                    current level of habitat fragmentation                  regard to the responses to the stressors               existence, they may not contribute to
                                                    (Factor A) further isolates populations,                became so great as to render the                       the future redundancy of Panama City
                                                    which reduces gene flow and limits the                  scenarios too unreliable beyond 2050 for               crayfish, because the populations are
                                                    potential for the species to disperse. In               that time period to be considered the                  already experiencing genetic drift and
                                                    addition, we have no evidence that ORV                  foreseeable future.                                    the habitat that supports them is
                                                    use (Factor A), overutilization (Factor B)                 Habitat fragmentation and isolation                 susceptible to future development.
                                                    or disease (Factor C) is affecting                      have contributed to the partitioning into                 All future scenarios predicted a
                                                    populations of Panama City crayfish.                    13 populations. While the Panama City                  negative impact on the redundancy of
                                                       The Act defines an endangered                        crayfish faces a variety of threats, only              Panama City crayfish. Under the ‘‘status
jstallworth on DSKBBY8HB2PROD with PROPOSALS




                                                    species as any species that is ‘‘in danger              one threat, habitat loss and degradation,              quo’’ scenario, 62 percent of
                                                    of extinction throughout all or a                       habitat fragmentation, and                             populations are in low condition by
                                                    significant portion of its range.’’ We find             subpopulation isolation due to urban                   2050; this percentage increases to 69
                                                    that an endangered species status is not                development, was considered an                         percent under the ‘‘intermediate
                                                    appropriate for the Panama City crayfish                important factor in our assessment of                  development’’ scenario and to 77
                                                    because the species maintains multiple                  the future viability of the Panama City                percent under the ‘‘high development’’
                                                    resilient populations across its historical             crayfish. Based on our future scenarios                scenario. The greatest loss of
                                                    range and the risk is low that the species              for urban development, we predict                      redundancy for Panama City crayfish is


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                                                                           Federal Register / Vol. 83, No. 2 / Wednesday, January 3, 2018 / Proposed Rules                                               339

                                                    predicted to occur in the western group.                its range.). While it is the Service’s                 provide that, in determining whether a
                                                    In this group, 100 percent of the                       position under the SPR Policy that                     designation of critical habitat would not
                                                    populations are in low condition by                     undertaking no further analysis of                     be beneficial to the species, the factors
                                                    2050 under the ‘‘high development’’                     ‘‘significant portion of its range’’ in this           that the Service may consider include,
                                                    scenario and 88 percent under the other                 circumstance is consistent with the                    but are not limited to, whether the
                                                    two scenarios. In the eastern group,                    language of the Act, we recognize that                 present or threatened destruction,
                                                    three populations are predicted to                      the Policy is currently under judicial                 modification, or curtailment of a
                                                    remain strongholds for Panama City                      review, so we also took the additional                 species’ habitat or range is not a threat
                                                    crayfish, although they would represent                 step of considering whether there could                to the species, or whether any areas
                                                    only 60 percent of the remaining eastern                be any significant portions of the                     meet the definition of ‘‘critical habitat’’
                                                    populations.                                            species’ range where the species is in                 (50 CFR 424.12(a)(1)(ii)).
                                                       At the species level, we estimate that               danger of extinction. We evaluated                        As discussed above, there is no
                                                    the Panama City crayfish currently has                  whether there is substantial information               evidence that collection or vandalism
                                                    low to moderate adaptive potential                      indicating that there are any portions of              are threats to the species, and there is
                                                    across its range, and all of the future                 the species’ range: (1) That may be                    no indication that identification and
                                                    scenarios are predicted to have an                      ‘‘significant,’’ and (2) where the species             mapping of critical habitat is likely to
                                                    impact on the species’ representation                   may be in danger of extinction. In                     initiate any such threats. Therefore, in
                                                    during the 50-year time horizon. Even                   practice, a key part of identifying                    the absence of finding that the
                                                    though Panama City crayfish has low                     portions appropriate for further analysis              designation of critical habitat would
                                                    representation in the western group,                    is whether the threats are geographically              increase threats to the species, if there
                                                    with only two of the eight populations                  concentrated. The threats affecting the                are benefits to the species from a critical
                                                    not in low condition, these two                         species are throughout its entire range;               habitat designation, a finding that
                                                    populations likely will persist because                 therefore, there is not a meaningful                   designation is prudent is appropriate.
                                                    of the protection afforded through                      geographical concentration of threats.                    The potential benefits of designation
                                                    conservation easements. The eastern                     As a result, even if we were to                        may include: (1) Triggering consultation
                                                    group comprises a much larger area and                  undertake a detailed SPR analysis, there               under section 7 of the Act, in new areas
                                                    contains the three populations currently                would not be any portions of the                       for actions in which there may be a
                                                    in high condition. However, two of                      species’ range where the threats are                   Federal nexus where it would not
                                                    these populations, Highpoint and 231-                   harming the species to a greater degree                otherwise occur because, for example, it
                                                    north, are predicted to be in low                       such that it is in danger of extinction in             is unoccupied; (2) focusing conservation
                                                    condition in the future. This is                        that portion.                                          activities on the most essential features
                                                    especially concerning given that the                                                                           and areas; (3) providing educational
                                                    Highpoint population contains unique                    Critical Habitat                                       benefits to State or county governments
                                                    genetic diversity not found in other                      Section 4(a)(3) of the Act, as                       or to private entities; and (4) preventing
                                                    populations, although more work is                      amended, and implementing regulations                  people from causing inadvertent harm
                                                    needed to confirm this (Duncan et al.                   in 50 CFR 424.12, require that, to the                 to the protected species. Because
                                                    2017, p. 19).                                           maximum extent prudent and                             designation of critical habitat would not
                                                       In short, based on our analysis of the               determinable, we designate critical                    likely increase the degree of threat to the
                                                    species’ current and future conditions,                 habitat at the time the species is                     species and may provide some measure
                                                    as well as the conservation efforts                     determined to be an endangered or                      of benefit, designation of critical habitat
                                                    discussed above, we conclude that the                   threatened species. Critical habitat is                is prudent for the Panama City crayfish.
                                                    population and habitat factors used to                  defined in section 3 of the Act as:                       Our regulations (50 CFR 424.12(a)(2))
                                                    determine the resiliency, representation                  (1) The specific areas within the                    further state that critical habitat is not
                                                    and redundancy for Panama City                          geographical area occupied by the                      determinable when one or both of the
                                                    crayfish will continue to decline so it is              species, at the time it is listed in                   following situations exists: (1)
                                                    likely to become in danger of extinction                accordance with the Act, on which are                  Information sufficient to perform
                                                    throughout its range within the                         found those physical or biological                     required analysis of the impacts of the
                                                    foreseeable future. Therefore, on the                   features (a) essential to the conservation             designation is lacking; or (2) the
                                                    basis of the best available scientific and              of the species and (b) Which may                       biological needs of the species are not
                                                    commercial information, we propose                      require special management                             sufficiently well known to permit
                                                    listing the Panama City crayfish as                     considerations or protection; and                      identification of an area as critical
                                                    threatened in accordance with sections                    (2) Specific areas outside the                       habitat. A careful assessment of the
                                                    3(6) and 4(a)(1) of the Act.                            geographical area occupied by the                      economic impacts that may occur due to
                                                       Under the Act and our implementing                   species at the time it is listed in                    a critical habitat designation is ongoing,
                                                    regulations, a species may warrant                      accordance with the Act, upon a                        and we are in the process of working
                                                    listing if it is endangered or threatened               determination by the Secretary of the                  with the States and other partners in
                                                    throughout all or a significant portion of              Interior that such areas are essential for             acquiring the complex information
                                                    its range. Because we have determined                   the conservation of the species.                       needed to perform that assessment.
                                                    that the Panama City crayfish is                          Our regulations (50 CFR 424.12(a)(1))                Until these efforts are complete,
                                                    threatened throughout all of its range,                 state that the designation of critical                 information sufficient to perform a
                                                    under the Final Policy on Interpretation                habitat is not prudent when any of the
jstallworth on DSKBBY8HB2PROD with PROPOSALS




                                                                                                                                                                   required analysis of the impacts of the
                                                    of the Phrase ‘‘Significant Portion of Its              following situations exist: (1) The                    designation is lacking, and, therefore,
                                                    Range’’ in the Endangered Species Act’s                 species is threatened by taking or other               we find designation of critical habitat
                                                    Definitions of ‘‘Endangered Species’’                   human activity, and identification of                  for this species to be not determinable
                                                    and ‘‘Threatened Species’’ (79 FR                       critical habitat can be expected to                    at this time.
                                                    37577, July 1, 2014) (SPR Policy), if a                 increase the degree of threat to the
                                                    species warrants listing throughout all                 species, or (2) such designation of                    Available Conservation Measures
                                                    of its range, no portion of the species’                critical habitat would not be beneficial                 Conservation measures provided to
                                                    range can be a ‘‘significant’’ portion of               to the species. The regulations also                   species listed as endangered or


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                                                    340                    Federal Register / Vol. 83, No. 2 / Wednesday, January 3, 2018 / Proposed Rules

                                                    threatened species under the Act                        Services Field Office (see FOR FURTHER                 modify its critical habitat. If a Federal
                                                    include recognition, recovery actions,                  INFORMATION CONTACT).                                  action may affect a listed species or its
                                                    requirements for Federal protection, and                   Implementation of recovery actions                  critical habitat, the responsible Federal
                                                    prohibitions against certain practices.                 generally requires the participation of a              agency must enter into consultation
                                                    Recognition through listing results in                  broad range of partners, including other               with the Service.
                                                    public awareness, and conservation by                   Federal agencies, States, Tribes,                         Federal agency actions within the
                                                    Federal, State, Tribal, and local                       nongovernmental organizations,                         species’ habitat that may require
                                                    agencies; private organizations; and                    businesses, and private landowners.                    conference or consultation or both as
                                                    individuals. The Act encourages                         Examples of recovery actions include                   described in the preceding paragraph
                                                    cooperation with the States and other                   habitat restoration (e.g., restoration of              include management and any other
                                                    countries and calls for recovery actions                native vegetation), research, captive                  landscape-altering activities on Federal
                                                    to be carried out for listed species. The               propagation and reintroduction, and                    lands administered by the issuance of
                                                    protection required by Federal agencies                 outreach and education. The recovery of                section 404 Clean Water Act (33 U.S.C.
                                                    and the prohibitions against certain                    many listed species cannot be                          1251 et seq.) permits by the U.S. Army
                                                    activities are discussed, in part, below.               accomplished solely on Federal lands                   Corps of Engineers, and construction
                                                       The primary purpose of the Act is the                because their ranges may occur                         and maintenance of roads or highways
                                                    conservation of endangered and                          primarily or solely on non-Federal                     by the Federal Highway Administration.
                                                    threatened species and the ecosystems                   lands. To achieve recovery of these                       The Act and its implementing
                                                    upon which they depend. The ultimate                    species requires cooperative                           regulations set forth a series of general
                                                    goal of such conservation efforts is the                conservation efforts on private, State,                prohibitions and exceptions that apply
                                                    recovery of these listed species, so that               and Tribal lands. If this species is listed,           to threatened wildlife. The prohibitions
                                                    they no longer need the protective                      funding for recovery actions will be                   of section 9(a)(1) of the Act, as applied
                                                    measures of the Act. Subsection 4(f) of                 available from a variety of sources,                   to threatened wildlife and codified at 50
                                                    the Act calls for the Service to develop                including Federal budgets, State                       CFR 17.31, make it illegal for any person
                                                    and implement recovery plans for the                    programs, and cost share grants for non-               subject to the jurisdiction of the United
                                                    conservation of endangered and                          Federal landowners, the academic                       States to take (which includes harass,
                                                    threatened species. The recovery                        community, and nongovernmental                         harm, pursue, hunt, shoot, wound, kill,
                                                    planning process involves the                           organizations. In addition, pursuant to                trap, capture, or collect; or to attempt
                                                    identification of actions that are                      section 6 of the Act, the State of Florida             any of these) threatened wildlife within
                                                    necessary to halt or reverse the species’               would be eligible for Federal funds to                 the United States or on the high seas. In
                                                    decline by addressing the threats to its                implement management actions that                      addition, it is unlawful to import;
                                                    survival and recovery. The goal of this                 promote the protection or recovery of                  export; deliver, receive, carry, transport,
                                                    process is to restore listed species to a               the Panama City crayfish. Information                  or ship in interstate or foreign
                                                    point where they are secure, self-                      on our grant programs that are available               commerce in the course of commercial
                                                    sustaining, and functioning components                  to aid species recovery can be found at:               activity; or sell or offer for sale in
                                                    of their ecosystems.                                    http://www.fws.gov/grants.                             interstate or foreign commerce any
                                                       Recovery planning includes the                          Although the Panama City crayfish is                listed species. It is also illegal to
                                                    development of a recovery outline                       only proposed for listing under the Act                possess, sell, deliver, carry, transport, or
                                                    shortly after a species is listed and                   at this time, please let us know if you                ship any such wildlife that has been
                                                    preparation of a draft and final recovery               are interested in participating in                     taken illegally. Certain exceptions apply
                                                    plan. The recovery outline guides the                   recovery efforts for this species.                     to employees of the Service, the
                                                    immediate implementation of urgent                      Additionally, we invite you to submit                  National Marine Fisheries Service, other
                                                    recovery actions and describes the                      any new information on this species                    Federal land management agencies, and
                                                    process to be used to develop a recovery                whenever it becomes available and any                  State conservation agencies.
                                                    plan. Revisions of the plan may be done                 information you may have for recovery                     We may issue permits to carry out
                                                    to address continuing or new threats to                 planning purposes (see FOR FURTHER                     otherwise prohibited activities
                                                    the species, as new substantive                         INFORMATION CONTACT).                                  involving threatened wildlife under
                                                    information becomes available. The                         Section 7(a) of the Act requires                    certain circumstances. Regulations
                                                    recovery plan also identifies recovery                  Federal agencies to evaluate their                     governing permits are codified at 50
                                                    criteria for review of when a species                   actions with respect to any species that               CFR 17.32. With regard to threatened
                                                    may be ready for downlisting (i.e.,                     is proposed or listed as an endangered                 wildlife, a permit may be issued for the
                                                    reclassification from endangered status                 or threatened species and with respect                 following purposes: For scientific
                                                    to threatened status) or delisting (i.e.,               to its critical habitat, if any is                     purposes, to enhance the propagation or
                                                    removal from the List), and methods for                 designated. Regulations implementing                   survival of the species, for economic
                                                    monitoring recovery progress. Recovery                  this interagency cooperation provision                 hardship, for zoological exhibition, for
                                                    plans also establish a framework for                    of the Act are codified at 50 CFR part                 educational purposes, or for other
                                                    agencies to coordinate their recovery                   402. Section 7(a)(4) of the Act requires               special purposes consistent with the
                                                    efforts and provide estimates of the cost               Federal agencies to confer with the                    purposes of the Act. There are also
                                                    of implementing recovery tasks.                         Service on any action that is likely to                certain statutory exemptions from the
                                                       Recovery teams (composed of species                  jeopardize the continued existence of a                prohibitions, which are found in
                                                    experts, Federal and State agencies,                    species proposed for listing or result in              sections 9 and 10 of the Act.
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                                                    nongovernmental organizations, and                      destruction or adverse modification of                    It is our policy, as published in the
                                                    stakeholders) are often established to                  proposed critical habitat. If a species is             Federal Register on July 1, 1994 (59 FR
                                                    develop recovery plans. When                            listed subsequently, section 7(a)(2) of                34272), to identify to the maximum
                                                    completed, the recovery outline, draft                  the Act requires Federal agencies to                   extent practicable at the time a species
                                                    recovery plan, and the final recovery                   ensure that activities they authorize,                 is listed, those activities that would or
                                                    plan will be available on our website                   fund, or carry out are not likely to                   would not constitute a violation of
                                                    (http://www.fws.gov/endangered), or                     jeopardize the continued existence of                  section 9 of the Act. The intent of this
                                                    from our Panama City Ecological                         the species or destroy or adversely                    policy is to increase public awareness of


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                                                                               Federal Register / Vol. 83, No. 2 / Wednesday, January 3, 2018 / Proposed Rules                                                          341

                                                    the effect of a proposed listing on                          (1) Be logically organized;                              Ecological Services Field Office (see FOR
                                                    proposed and ongoing activities within                       (2) Use the active voice to address                      FURTHER INFORMATION CONTACT,    above).
                                                    the range of the species proposed for                     readers directly;                                           Authors
                                                    listing. Activities that the Service                         (3) Use clear language rather than
                                                    believes could potentially harm the                       jargon;                                                       The primary authors of this proposed
                                                    Panama City crayfish and result in                           (4) Be divided into short sections and                   rule are the staff members of the
                                                    ‘‘take’’ include, but are not limited to:                 sentences; and                                              Service’s Unified Listing Team and the
                                                       (1) Unauthorized handling or                                                                                       Panama City Ecological Services Field
                                                                                                                 (5) Use lists and tables wherever
                                                    collecting of the species;                                                                                            Office.
                                                       (2) Destruction or alteration of the                   possible.
                                                    species’ habitat by development;                             If you feel that we have not met these                   List of Subjects in 50 CFR Part 17
                                                       (3) Actions that would alter the                       requirements, send us comments by one
                                                                                                              of the methods listed in ADDRESSES. To                        Endangered and threatened species,
                                                    hydrology within suitable soils available
                                                                                                              better help us revise the rule, your                        Exports, Imports, Reporting and
                                                    for the Panama City crayfish;
                                                       (4) Actions that result in permanent                   comments should be as specific as                           recordkeeping requirements,
                                                    loss of habitat within suitable soils once                possible. For example, you should tell                      Transportation.
                                                    available to the Panama City crayfish;                    us the numbers of the sections or                           Proposed Regulation Promulgation
                                                       (5) Application of chemicals,                          paragraphs that are unclearly written,
                                                    including insecticides and petroleum                      which sections or sentences are too                           Accordingly, we propose to amend
                                                    products in violation of label                            long, the sections where you feel lists or                  part 17, subchapter B of chapter I, title
                                                    restrictions, or other actions that pollute               tables would be useful, etc.                                50 of the Code of Federal Regulations,
                                                    the soils and waters that are used by the                                                                             as set forth below:
                                                    Panama City crayfish; and                                 National Environmental Policy Act (42
                                                       (6) Destruction of herbaceous                          U.S.C. 4321 et seq.)                                        PART 17—ENDANGERED AND
                                                    vegetation directly adjacent to occupied                                                                              THREATENED WILDLIFE AND PLANTS
                                                                                                                We have determined that
                                                    pools that affects the hydrology and                      environmental assessments and
                                                    removes cover for the crayfish.                                                                                       ■ 1. The authority citation for part 17
                                                                                                              environmental impact statements, as
                                                       Questions regarding whether specific                                                                               continues to read as follows:
                                                                                                              defined under the authority of the
                                                    activities would constitute a violation of                National Environmental Policy Act,                            Authority: 16 U.S.C. 1361–1407; 1531–
                                                    section 9 of the Act should be directed                   need not be prepared in connection                          1544; and 4201–4245, unless otherwise
                                                    to the Panama City Ecological Services                                                                                noted.
                                                                                                              with listing a species as an endangered
                                                    Field Office (see FOR FURTHER                             or threatened species under the                             ■ 2. Amend § 17.11(h), the List of
                                                    INFORMATION CONTACT, above).                              Endangered Species Act. We published                        Endangered and Threatened Wildlife, by
                                                    Required Determinations                                   a notice outlining our reasons for this                     adding an entry for ‘‘Crayfish, Panama
                                                                                                              determination in the Federal Register                       City’’ in alphabetical order under
                                                    Clarity of the Rule                                       on October 25, 1983 (48 FR 49244).                          CRUSTACEANS to read as set forth
                                                      We are required by Executive Orders                                                                                 below:
                                                                                                              References Cited
                                                    12866 and 12988 and by the
                                                    Presidential Memorandum of June 1,                          A complete list of references cited in                    § 17.11 Endangered and threatened
                                                    1998, to write all rules in plain                         the SSA report is available on the                          wildlife.
                                                    language. This means that each rule we                    internet at http://www.regulations.gov                      *       *    *       *     *
                                                    publish must:                                             and upon request from the Panama City                           (h) * * *

                                                         Common name                        Scientific name                Where listed                    Status              Listing citations and applicable rules


                                                               *                        *                       *                          *                        *                      *                     *

                                                                                                                                CRUSTACEANS


                                                              *                         *                  *                         *                              *                    *                   *
                                                    Crayfish, Panama City ...         Procambarus econfinae          Wherever found .............      T                [Federal Register citation when published as a
                                                                                                                                                                          final rule].

                                                               *                        *                       *                          *                        *                      *                     *



                                                    *      *       *       *      *                             Dated: November 21, 2017.
                                                                                                              James W. Kurth,
                                                                                                              Deputy Director for U.S. Fish and Wildlife
jstallworth on DSKBBY8HB2PROD with PROPOSALS




                                                                                                              Service Exercising the Authority of the
                                                                                                              Director for U.S. Fish and Wildlife Service.
                                                                                                              [FR Doc. 2017–28313 Filed 1–2–18; 8:45 am]
                                                                                                              BILLING CODE 4333–15–P




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Document Created: 2018-10-26 09:27:32
Document Modified: 2018-10-26 09:27:32
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionProposed rule.
DatesWe will accept comments received or postmarked on or before March 5, 2018. Comments submitted electronically using the Federal
ContactCatherine Phillips, Field Supervisor, U.S. Fish and Wildlife Service, Panama City Ecological Services Field Office, 1601 Balboa Avenue, Panama City, FL 32405; telephone 850-769- 0552; facsimile 850-763-2177. Persons who use a telecommunications device for the deaf (TDD) may call the Federal Relay Service at 800- 877-8339.
FR Citation83 FR 330 
RIN Number1018-BC14
CFR AssociatedEndangered and Threatened Species; Exports; Imports; Reporting and Recordkeeping Requirements and Transportation

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