Incilius tacanensis 

Scope: Global

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Bufonidae

Scientific Name: Incilius tacanensis
Species Authority: (Smith, 1952)
Bufo tacanensis Smith, 1952
Taxonomic Source(s): Frost, D.R. 2014. Amphibian Species of the World: an Online Reference. Version 6.0 (7 July 2014). Electronic Database. American Museum of Natural History, New York, USA. Available at:

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii) ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): Georgina Santos-Barrera, Oscar Flores-Villela, Manuel Acevedo, Antonio Muñoz Alonso
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson, Neil Cox and Bruce Young)
Listed as Endangered because its Extent of Occurrence is less than 5,000 km2, all individuals are in fewer than five locations, and there is continuing decline in the extent and quality of its habitat in Mexico and Guatemala.

Geographic Range [top]

Range Description:This species occurs at intermediate elevations along the Pacific versant of eastern Chiapas (Unión de Juarez), Mexico to western Guatemala, at elevations of 1,500-1,700m asl.
Countries occurrence:
Guatemala; Mexico
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This is a rare species throughout its range, and there are no recent records of it in either Mexico or Guatemala, despite searches.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species has been recorded in foothills in premontane tropical forest. It is probably a stream breeder.
Systems:Terrestrial; Freshwater

Threats [top]

Major Threat(s): The alteration of the original forested areas by local people has severely impacted the only known habitat for this species. Furthermore, as a montane stream-breeding bufonid, it is possible that the species may be at risk of chytridiomycosis.

Conservation Actions [top]

Conservation Actions: Conservation of the forested areas along the foothills of the Tacana volcano is necessary to ensure the preservation of this species. Fortunately, some programs of protection and restoration of the forests in the area have been implemented. In view of the severe risk of chytridiomycosis, the status of this species should be closely monitored, and ex-situ populations should be established if chytrid is shown to be a threat.

Citation: Georgina Santos-Barrera, Oscar Flores-Villela, Manuel Acevedo, Antonio Muñoz Alonso. 2004. Incilius tacanensis. The IUCN Red List of Threatened Species 2004: e.T54773A11202264. . Downloaded on 24 October 2016.
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