Map_thumbnail_large_font

Batrachoseps simatus 

Scope: Global
Language: English
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_onStatus_en_offStatus_cr_offStatus_ew_offStatus_ex_off

Translate page into:

Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Caudata Plethodontidae

Scientific Name: Batrachoseps simatus Brame & Murray, 1968
Common Name(s):
English Kern Canyon Slender Salamander

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2010
Date Assessed: 2009-01-12
Assessor(s): Geoffrey Hammerson
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson, Neil Cox and Bruce Young)
Justification:
Listed as Vulnerable because it is known from fewer than five locations.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is known from a number of sites in the lower Kern River Canyon, Kern County, California, at the southern end of the Sierra Nevada mountain range in the USA. It occurs in isolated colonies, and probably occurs in many densely wooded canyons in the lower Kern River Canyon. They have been recorded from 450-1,220m asl. Populations in the vicinity of Fairview, Tulare County, have been allied with B. simatus, but probably represent a distinct species.
Countries occurrence:
Native:
United States
Additional data:
Lower elevation limit (metres):450
Upper elevation limit (metres):1220
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Total adult population size is unknown, although individual population sizes are presumably quite small. It is locally abundant (Bury, Dodd and Fellers, 1980).
Current Population Trend:Stable
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:It favours north-facing slopes and small wooded tributary canyons. It also inhabits oak-pine communities on slopes; willow and cottonwood communities along streams; chaparral; and may range into grassland adjacent to woods. It is often found in crevices in talus slopes or under rocks and logs. It is a terrestrial breeder.
Systems:Terrestrial

Threats [top]

Major Threat(s): At present there do not appear to be any significant threats. Potential future threats include cattle grazing, highway construction, and the proposed development of water storage facilities within the Kern River Canyon.

Conservation Actions [top]

Conservation Actions: Nearly all the known populations occur on public lands administered by the Sequoia National Forest. Kern Canyon slender salamanders are listed as Threatened by the State of California and are a Federal Species of Concern.

Classifications [top]

1. Forest -> 1.4. Forest - Temperate
suitability:Suitable  major importance:Yes
3. Shrubland -> 3.4. Shrubland - Temperate
suitability:Marginal  
0. Root -> 6. Rocky areas (eg. inland cliffs, mountain peaks)
suitability:Suitable  major importance:Yes
1. Land/water protection -> 1.1. Site/area protection
1. Land/water protection -> 1.2. Resource & habitat protection
2. Land/water management -> 2.1. Site/area management
4. Education & awareness -> 4.3. Awareness & communications

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Conservation sites identified:Yes, over entire range
  Occur in at least one PA:Yes
In-Place Species Management
In-Place Education
1. Residential & commercial development -> 1.2. Commercial & industrial areas
♦ timing:Future    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

2. Agriculture & aquaculture -> 2.3. Livestock farming & ranching -> 2.3.2. Small-holder grazing, ranching or farming
♦ timing:Future    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

4. Transportation & service corridors -> 4.1. Roads & railroads
♦ timing:Future    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

7. Natural system modifications -> 7.2. Dams & water management/use -> 7.2.11. Dams (size unknown)
♦ timing:Future    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.5. Threats
2. Conservation Planning -> 2.1. Species Action/Recovery Plan
3. Monitoring -> 3.1. Population trends

Bibliography [top]

Behler, J.L. and King, F.W. 1979. The Audubon Society Field Guide to North American Reptiles and Amphibians. New York.

Biosystems Analysis, Inc. 1989. Endangered Species Alert Program Manual: Species Accounts and Procedures. Southern California Edison Environmental Affairs Division.

Bury, R.B., Dodd, Jr., C.K. and Fellers, G.M. 1980. Conservation of the Amphibia of the United States: a review. Resource Publication: 1-34.

California Department of Fish and Game (CDF&G). 1990. 1989 annual report on the status of California's state listed threatened and endangered plants and animals. California Department of Fish and Game.

Frost, D.R. 1985. Amphibian Species of the World: A Taxonomic and Geographic Reference. Allen Press and the Association of Systematic Collections, Lawrence, Kansas.

Hansen, R.W. and Wake, D.B. 2005. Batrachoseps simatus Brame and Murray, 1968. In: Lannoo, M.J. (ed.), Amphibian Declines: the Conservation Status of United States Species, pp. 691-693. University of California Press, Berkeley and Los Angeles.

IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.2). Available at: http://www.iucnredlist.org. (Accessed: 29 June 2010).

Stebbins, R.C. 1972. California Amphibians and Reptiles. University of California Press, Berkeley, California.

Stebbins, R.C. 1985. A Field Guide to Western Reptiles and Amphibians. Second Edition. Houghton Mifflin Company, Boston, Massachusetts.


Citation: Geoffrey Hammerson. 2010. Batrachoseps simatus. The IUCN Red List of Threatened Species 2010: e.T2647A9464807. . Downloaded on 21 September 2018.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided