|Scientific Name:||Pseudoeurycea aquatica Wake & Campbell, 2001|
|Taxonomic Source(s):||Frost, D.R. 2015. Amphibian Species of the World: an Online Reference. Version 6.0. New York, USA. Available at: http://research.amnh.org/herpetology/amphibia/index.html.|
|Red List Category & Criteria:||Critically Endangered (Possibly Extinct) B1ab(iii)+2ab(iii) ver 3.1|
|Assessor(s):||IUCN SSC Amphibian Specialist Group|
|Contributor(s):||Wake, D., Parra-Olea, G. & Rovito, S.|
|Facilitator/Compiler(s):||Hobin, L. & Arias Caballero, P.|
Listed as Critically Endangered because its extent of occurrence (EOO) is 10 km2, all individuals are known from a single location and there is continuing decline in the extent and quality of its habitat around Totontepec, Mexico. This species is thought to be possibly extinct as it has not been seen since 1978.
|Date last seen:||1978|
|Previously published Red List assessments:|
|Range Description:||This species is only known from Totontepec in central-eastern Oaxaca, Mexico, at 2,500 m asl, It occurs in one threat-defined location and its extent of occurrence (EOO) is 10 km2.|
Possibly extinct:Mexico (Oaxaca - Native)
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||It is known from only three specimens collected in 1978. There have been many subsequent, unsuccessful searches for it, and it is likely to be extinct.|
|Current Population Trend:||Decreasing|
|Habitat and Ecology:||This is the only known aquatic plethodontid salamander in Mesoamerica, occurring in the plunge pools of streams in cloud forest. It presumably reproduces by direct development.|
|Continuing decline in area, extent and/or quality of habitat:||Yes|
|Movement patterns:||Not a Migrant|
|Use and Trade:||There are no records of this species being utilized.|
|Major Threat(s):||The cloud forest habitat of this species has been completely destroyed at the type locality due to wood extraction, farming, and human settlement. The resulting degradation of streams due to burned debris has probably also contributed to the species' disappearance. Introduced predatory fish (trout species) could also be a potential threat; their presence has been documented in this species' habitat and they are known to be very detrimental to other populations of aquatic salamanders (Lamoreux et al. 2015).|
It is not known from any protected areas.
Further distribution survey work is needed to establish whether or not this species might survive in the wild outside its only known locality.
|Citation:||IUCN SSC Amphibian Specialist Group. 2016. Pseudoeurycea aquatica. The IUCN Red List of Threatened Species 2016: e.T59369A53981096.Downloaded on 22 September 2018.|
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