This species occurs only on the Sierra de Juarez at Cerro San Felipe and Llanos de las Flores, north-western Oaxaca, Mexico, at 2,500-3,000m asl. It may also occur in Sierra de Cuatro Venados, but the specimens have not been validated. Species may be extinct at the type locality; however, it was found at Llanos de las Flores in 1999 (the last known record).
Habitat and Ecology
It inhabits pine forests, living under the bark of logs, and is able to persist in somewhat disturbed habitat. It is terrestrial and reproduces by direct development.
It used to be very abundant, but is now extremely rare suggesting that a massive decline has taken place.
The cause for declines remain a mystery. It is probably being negatively impacted by agricultural expansion, human settlements, and logging, all of which are taking place extensively within its range. However, these threats do not explain the level of decline that has been observed, because the habitat is still in quite good condition in some places.
The species is known to occur in the Parque Nacional Benito Juarez. While continued and strengthened protection of the species' remaining habitat is required, additional research is required into the reasons for its dramatic decline. This species is listed as "Threatened" (Amenazada) by the Mexican government.
Red List Status
Critically Endangered (CR)
Listed as Critically Endangered because of a population decline, estimated to be more than 80% based on the apparent disappearance of most of the population, shrinkage in its distribution, and habitat destruction and degradation in northwestern Oaxaca, Mexico.
Gabriela Parra-Olea, David Wake 2008. Pseudoeurycea smithi. The IUCN Red List of Threatened Species 2008: e.T59397A11917949. http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T59397A11917949.en