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Crotalus caliginis

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA REPTILIA SQUAMATA VIPERIDAE

Scientific Name: Crotalus caliginis
Species Authority: Klauber, 1949

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2007
Date Assessed: 2007-03-01
Assessor/s: Hollingsworth, B.
Reviewer/s: Cox, N., Chanson, J.S. & Stuart, S.N. (Global Reptile Assessment Coordinating Team)
Justification:
Listed as Least Concern because, although its extent of occurrence is much less than 5,000 km², it is common and occurs in a habitat that is not under significant threat.

Geographic Range [top]

Range Description: This species is known only from the Pacific island of Isla Coronado Sur, off the coast of northern Baja California, Mexico (Grismer 2002). It is ubiquitous on the island.
Countries:
Native:
Mexico
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: It is abundant within its small range.
Population Trend: Stable

Habitat and Ecology [top]

Habitat and Ecology: It lives in low-growing brush and cactus that are generally wind-blown and stunted (Grismer 2002). It is most commonly found under the leaves of the ice plant (Mesembryanthemum crystallinum) that covers the island (Oberbauer 1992).
Systems: Terrestrial

Threats [top]

Major Threat(s): There are no known threats within its small range.

Conservation Actions [top]

Conservation Actions: Its range is within the Islas del Golfo de California Fauna and Flora Protection Area. No direct conservation measures are currently needed for this species.
Citation: Hollingsworth, B. 2007. Crotalus caliginis. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 19 April 2014.
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