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Chihuahuan Spotted Whiptail Lizard

Scientific Name Aspidoscelis exsanguis

Photo Taken At Omaha'S Henry Doorly Zoo, Omaha, Nebraska, USA

IUCN Red List Status Least Concern

Population

This species is represented by hundreds of occurrences or subpopulations (e.g., see maps Stuart 1991 and Degenhardt et al. 1996). The total adult population size is unknown but probably exceeds 100,000. The extent of occurrence, area of occupancy, number of subpopulation, and population size are probably relatively stable. The population is fine in Mexico. Read More

Threats

No major threats have been identified. Read More

Geographic Range

The range extends from the upper Rio Grande, Pecos River, and Canadian River valleys of New Mexico southward through western Texas to central Chihuahua (Rio Conchos and Rio Papigochic drainage basins) and westward to southeastern Arizona and northeastern Sonora, at elevations of 760 to 2,440 m asl (2,500 to 8,000 feet) (Stuart 1991). Read More

Habitat

Habitats include desert, desert grassland, oak-pine woodland, and ponderosa pine, on rocky slopes, along sandy washes, and in canyons (Stebbins 2003). The species occurs primarily in Madrean evergreen woodlands (oak-juniper, juniper, juniper-pinyon associations) on mountain bajadas and valley sides; it ranges upslope to Great Basin conifer and lower Madrean montane forests, and it descends to semi-desert grassland, Chihuahuan desert scrub, and (locally) riparian floodplain communities (Stuart 1991). Eggs are laid in a nest dug in soil/underground. Read More

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RECENTLY ADDED SPECIES

Hammerson, G.A., Frost, D.R. & Santos-Barrera, G. 2007. Aspidoscelis exsanguis. The IUCN Red List of Threatened Species 2007: e.T64264A12751408. http://dx.doi.org/10.2305/IUCN.UK.2007.RLTS.T64264A12751408.en