|Scientific Name:||Orconectes hartfieldi Fitzpatrick & Suttkus, 1992|
Individuals of this species from drainages near the known range may represent undocumented variation within this species or a new species. For example, no Orconectes (Hespericambarus) spp. have a described range including the
|Red List Category & Criteria:||Vulnerable B1ab(iii) ver 3.1|
|Assessor(s):||Adams, S. & Jones, R.L.|
|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.|
Orconectes hartfieldi has been assessed as Vulnerable under criterion B1ab(iii). This species is found in 6 tributaries of the Yazoo River, equating to a total extent of occurrence of approximately 1,466 km2. In addition, continued decline in the quality of habitat available to this species has been noted. Given a reduction in location, this species would quickly qualify for a higher threat status. Further research on the impact of various threats on this species is recommended so appropriate conservation measures can be devised.
|Previously published Red List assessments:|
This species is known from six localities in the
The Extent of Occurrence (EOO) of this species has been estimated at 1,466 km2.
Native:United States (Mississippi)
|Range Map:||Click here to open the map viewer and explore range.|
This species was found to be uncommon in five of six collections, obtaining three or fewer specimens per site (S. Adams, pers. comm. 2009). Most stream sampling within the range has not produced this species (
|Current Population Trend:||Unknown|
|Habitat and Ecology:|
This species is endemic to the
|Continuing decline in area, extent and/or quality of habitat:||Unknown|
This species seems to be able to tolerate somewhat degraded conditions, as two of the streams it inhabits are used by small holder livestock farming (Fitzpatrick and Suttkus 1992). It is likely to be affected by row-crop agriculture, deforestation, roads, channelization, and head-cutting. In addition, large reservoirs currently fragment this species' range (S. Adams, pers. comm. 2009).
This species has been given a Global Heritage Status Rank of G2 by NatureServe (Taylor et al. 2007, NatureServe 2009) and 'threatened' by the American Fisheries Society (Taylor et al. 2007).
Further research this species range and assessments of population size are recommended, as are evaluations of responses to stream habitat degradation (S. Adams, pers. comm. 2009).
|Citation:||Adams, S. & Jones, R.L. 2010. Orconectes hartfieldi. The IUCN Red List of Threatened Species 2010: e.T15441A4585752.Downloaded on 15 October 2018.|
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