Cambarus deweesae

Summary 2

Cambarus is a large and diverse genus of North American crayfish. The adults range in size from about 5 centimetres (2 in) up to approximately 15 cm (6 in).

Distribution 3

Global Range: (1000-5000 square km (about 400-2000 square miles)) Known from four localities in Anderson and Roane counties in Tennessee (Clinch and Emory river drainages) and is widespread in eastern Kentucky (Cumberland and Licking river drainages). Until recently, it was thought to have a restricted range in the Clinch and Emory River drainages of northwest Tennessee, but in recent years has been widely but sporadically collected in central and southeastern Kentucky (Taylor and Schuster, 2004). There is some question as to whether these new populations represent a continuous distribution or isolated disjunct distribution (G. Schuster, C. Taylor, pers. comm., 2009).

Habitat and ecology 4

Habitat and Ecology

The type locality of this species is a floodplain in the east of Poplar Creek. The soils consist of clays and fragments of shale. This species is a primary burrower, with complex and variable burrows, the openings of which are well concealed by vegetation (Bouchard and Etnier 1979). These usually occur in open areas with high water tables.

Systems
  • Freshwater

Iucn red list assessment 5


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Cordeiro, J. & Thoma, R.F.

Reviewer/s
Collen, B. & Richman, N.

Contributor/s
Livingston, F., Livingston, F., Soulsby, A.-M., Batchelor, A., Dyer, E., Whitton, F., Milligan, H.T., Smith, J., Lutz, M.L., De Silva, R., McGuinness, S., Kasthala, G., Jopling, B., Sullivan, K. & Cryer, G.

Justification
Cambarus deweesae has been assessed as Least Concern. This is because this species appears to be able to cope with distrubances within its habitat and does not appear to be facing any major threat processes. Further research is needed however into the abundance of this species to ensure it is not undergoing any significant declines as a result of an unknown threat process, as its limited range means it could be susceptible to this.

History
  • 1996
    Endangered (EN)

Range description 6

This species is known from four localities in Anderson and Roane counties, Tennessee (Clinch and Emory River drainages) and is widespread in eastern Kentucky, (Cumberland and Licking River drainages), USA. Until recently, it was thought to have a restricted range in the Clinch and Emory River drainages of northwest Tennessee, but in recent years has been widely but sporadically collected in central and southeastern Kentucky (Taylor and Schuster 2004). There is some question as to whether these new populations represent a continuous distribution or isolated disjunct distribution (G. Schuster, C. Taylor, pers. comm. 2009).

Sources and Credits

  1. (c) rkkessler, all rights reserved
  2. Adapted by rkkessler from a work by (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Cambarus_deweesae
  3. (c) NatureServe, some rights reserved (CC BY-NC), http://eol.org/data_objects/28865751
  4. (c) International Union for Conservation of Nature and Natural Resources, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/34352817
  5. (c) International Union for Conservation of Nature and Natural Resources, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/34352814
  6. Adapted by rkkessler from a work by (c) International Union for Conservation of Nature and Natural Resources, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/34352815

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