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Urosaurus clarionensis 

Scope: Global
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Reptilia Squamata Phrynosomatidae

Scientific Name: Urosaurus clarionensis (Townsend, 1890)

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2007
Date Assessed: 2007-03-01
Assessor(s): Ponce-Campos, P. & García Aguayo, A.
Reviewer(s): Cox, N., Chanson, J.S. & Stuart, S.N. (Global Reptile Assessment Coordinating Team)
Justification:
Urosaurus clarionensis is restricted to one, very small island off the west coast of Mexico. Domestic animals have damaged the natural vegetation; however, it is still not clear if this species has been significantly impacted by this. The introduction of cats to the island would present a serious threat to the species. It is assessed as Vulnerable based on its highly restricted range and the potential threat from introduced species.

Geographic Range [top]

Range Description:This species is endemic to Clarion Island, in the Revillagigedo Archipielago, Colima State, Mexico. The highest elevation on the island is 300m asl (1,000 feet).
Countries occurrence:
Native:
Mexico
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The abundance and population size of this species are not known.
Current Population Trend:Unknown
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:Although the dominant habitat on Clarion Island is tropical dry forest, it is not known if the species inhabits forested areas.
Systems:Terrestrial

Threats [top]

Major Threat(s): The species has a highly restricted island range which is impacted by introduced species and military use. Domestic animals, including rabbits and pigs, have been introduced to the island for human consumption. This has resulted in a degradation of the islands natural habitat, with several native bird species being extirpated from the island. It is not known if feral cats are present on the island. Predation by cats is considered to be a serious threat.

Conservation Actions [top]

Conservation Actions: Although Clarion Island has been designated as a Biosphere Reserve, the natural habitat of the island is still being damaged by people. Further studies are needed into the ecology of this species and the impact of introduced species. There is a need to determine whether cats have been introduced to the island. Populations of this species should be monitored to record changes in abundance and distribution. Habitat maintenance, conservation and restoration are urgently needed.

Citation: Ponce-Campos, P. & García Aguayo, A. 2007. Urosaurus clarionensis. The IUCN Red List of Threatened Species 2007: e.T64169A12750480. . Downloaded on 24 September 2017.
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