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Bythinella padiraci 

Scope: Global & Europe
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Mollusca Gastropoda Littorinimorpha Hydrobiidae

Scientific Name: Bythinella padiraci Locard, 1902
Taxonomic Notes: This is a valid species, confirmed by molecular analysis (Bichain et al. 2007).

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2010
Date Assessed: 2009-11-09
Assessor(s): Prié, V.
Reviewer(s): Cuttelod, A., Seddon, M.B. & Gargominy, O.
Contributor(s): Bichain, J.
Justification:
This species was originally listed on the 1996 Red List (Bouchet 1996) with a category of Vulnerable D2 (version 2.3), on the basis of a restricted range and potential for habitat disturbance. Although this species is close to the threshold for Critically Endangered, the threats at present are longer-term threats for future changes, and as such the species is maintained as Vulnerable D2 (version 3.1) based on the restricted range (1 location) and the potential for habitat change.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is endemic to France, and is restricted to the Padirac River catchment, in Department Lot, in the region of Midi-Pyrenees. As such, it is found in one location with an area of occupancy of  92km2.
Countries occurrence:
Native:
France (France (mainland))
Additional data:
Estimated area of occupancy (AOO) - km2:92
Number of Locations:1
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:No detailed information on population status, but considered stable (Prie pers. comm 2009).
Current Population Trend:Stable
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This is a freshwater mollusc restricted to the groundwaters of a river catchment.
Systems:Freshwater

Threats [top]

Major Threat(s): The threats to this species, lie in the vulnerability of the single location, to pollution events.  The species requires clean, unpolluted waters, and as such any degradation of the water (road run-off, pesticides and herbicides from agricultural sources and domestic sewage) could impact the species in the future.

Conservation Actions [top]

Conservation Actions: There are no conservation measures.

Citation: Prié, V. 2010. Bythinella padiraci. The IUCN Red List of Threatened Species 2010: e.T3396A9817256. . Downloaded on 19 September 2018.
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