[Federal Register Volume 81, Number 76 (Wednesday, April 20, 2016)]
[Notices]
[Page 23326]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-09104]
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DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
[FWS-R8-ES-2015-N247; FXES11130000-156-FF08E00000]
Endangered and Threatened Wildlife and Plants; Recovery Plan for
Vine Hill Clarkia
AGENCY: Fish and Wildlife Service, Interior.
ACTION: Notice of document availability.
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SUMMARY: We, the U.S. Fish and Wildlife Service, announce the
availability of the Recovery Plan for Vine Hill Clarkia (Clarkia
imbricata). The recovery plan includes recovery objectives and
criteria, and specific actions necessary to achieve downlisting and
delisting from the Federal Lists of Endangered and Threatened Wildlife
and Plants.
ADDRESSES: You may obtain a copy of the recovery plan from our Web
site at http://www.fws.gov/endangered/species/recovery-plans.html.
Alternatively, you may contact the Sacramento Fish and Wildlife Office,
U.S. Fish and Wildlife Service, 2800 Cottage Way, Suite W-2605,
Sacramento, CA 95825 (telephone 916-414-6700).
FOR FURTHER INFORMATION CONTACT: Jennifer Norris, Field Supervisor, at
the above street address or telephone number (see ADDRESSES).
SUPPLEMENTARY INFORMATION:
Background
Recovery of endangered or threatened animals and plants to the
point where they are again secure, self-sustaining members of their
ecosystems is a primary goal of our endangered species program and the
Endangered Species Act of 1973, as amended (Act; 16 U.S.C. 1531 et
seq.). Recovery means improvement of the status of listed species to
the point at which listing is no longer appropriate under the criteria
specified in section 4(a)(1) of the Act. The Act requires the
development of recovery plans for listed species, unless such a plan
would not promote the conservation of a particular species.
We listed Vine Hill clarkia throughout its entire range as
endangered on October 22, 1997 (62 FR 55791). The species was also
listed as endangered by the State of California in 1978. It is a narrow
endemic, historically known from three locations in central Sonoma
County, California, all three of which may be extirpated. Currently,
the species is only known to exist as a single introduced population on
the 0.6-hectare (1.5-acre) Vine Hill Preserve, owned and managed by the
California Native Plant Society. Between 2007 and 2012, the population
fluctuated from approximately 500 to 8,781 plants.
All known populations of Vine Hill clarkia are located between 60
to 75 meters (197 to 246 feet) elevation, on what has been mapped as
Goldridge acidic sandy loams, in an area sometimes referred to as the
Sonoma Barrens. The ability of Vine Hill clarkia to persist naturally
outside of Sonoma Barrens conditions is unknown. The Sonoma Barrens are
an area within Sonoma County located halfway between maritime and
inland climates, in a pronounced fog gap that makes it subject to
peculiar climatic fluctuations.
At this time, the primary threats to Vine Hill clarkia are
competition for light and space with native and non-native species and
risk of extinction from stochastic environmental events associated with
small populations. Because of the extreme range restriction of this
already-narrow endemic, and its small population size, the plant is
highly vulnerable to extinction from random events, including wildfire,
herbivory, disease and pest outbreaks, and human disturbance.
Two species of concern are also addressed in this recovery plan,
Vine Hill manzanita (Arctostaphylos densiflora) and Vine Hill ceanothus
(Ceanothus foliosus var. vineatus), which historically coexisted with
Vine Hill clarkia. Vine Hill manzanita and Vine Hill ceanothus are
included in this recovery plan because a community-based recovery
strategy provides for conservation of species with similar habitat
requirements to those of Vine Hill clarkia, and because recovery
actions implemented for Vine Hill clarkia that do not consider these
other rare species may negatively affect the community. These two
species are, respectively, State listed as endangered and listed Rank
1B by the California Native Plant Society.
Recovery Plan Goals
The purpose of a recovery plan is to provide a framework for the
recovery of species so that protection under the Act is no longer
necessary. A recovery plan includes scientific information about the
species and provides criteria that enable us to gauge whether
downlisting or delisting the species is warranted. Furthermore,
recovery plans help guide our recovery efforts by describing actions we
consider necessary for each species' conservation and by estimating
time and costs for implementing needed recovery measures.
The goal of this recovery plan is to improve the status of Vine
Hill clarkia so that it can be delisted. The interim goal is to recover
the species to the point that it can be downlisted from endangered to
threatened status. The recovery objectives of the plan are:
Restore Sonoma Barrens habitat and establish Vine Hill
clarkia.
Manage native and nonnative vegetation that competes with
Vine Hill clarkia.
Ensure locations with Vine Hill clarkia are secure from
incompatible uses.
The recovery plan contains recovery criteria based on protecting,
maintaining, and increasing populations, as well as increasing habitat
quality and quantity. As Vine Hill clarkia meets recovery criteria, we
will review its status and consider it for downlisting or removal from
the Federal Lists of Endangered and Threatened Wildlife and Plants.
Community conservation efforts recommended for Vine Hill manzanita
and Vine Hill ceanothus include establishing these species, either in
concert with each other and Vine Hill clarkia, or separately.
Authority
We developed this recovery plan under the authority of section 4(f)
of the Act, 16 U.S.C. 1533(f). We publish this notice under section
4(f) of the Endangered Species Act of 1973, as amended (16 U.S.C. 1531
et seq.).
Alexandra Pitts,
Acting Regional Director, Pacific Southwest Region.
[FR Doc. 2016-09104 Filed 4-19-16; 8:45 am]
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