Callospermophilus lateralis 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Sciuridae

Scientific Name: Callospermophilus lateralis Say, 1823
Common Name(s):
English Golden Mantled Ground Squirrel, Green River Basin Golden-mantled Ground Squirrel
Spermophilus lateralis (Say, 1823)
Taxonomic Source(s): Helgen, K.M., Cole, F.R.,Helgen, L.E. and Wilson, D.E. 2009. Generic revision in the Holarctic ground squirrel genus Spermophilus. Journal of Mammalogy 90(2): 270-305.
Taxonomic Notes: Spermophilus saturatus formerly was included in this species.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2016
Date Assessed: 2016-08-07
Assessor(s): Cassola, F.
Reviewer(s): Amori, G.
Contributor(s): Hammerson, G.A. & Linzey, A.
Listed as Least Concern because it is widespread, common in suitable habitat, and there are no major threats at present.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is found in western North America, from eastern British Columbia and western Alberta, south through the western United States to California, Arizona, and New Mexico, at elevations of 1,220-3,965 m asl (Bartels and Thompson 1993). There are disjunct population segments in the southern portion of the range.
Countries occurrence:
Canada; United States
Additional data:
Lower elevation limit (metres):1220
Upper elevation limit (metres):3965
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Populations usually are distributed evenly over good habitat. This species is locally abundant.
Current Population Trend:Stable
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:It inhabits mountain slopes and foothills, alpine tundra, chaparral, open areas in pine, spruce, and fir forests, rocky outcroppings and slides, margins of mountain meadows, and rocky sagebrush country; campgrounds. Often in areas with abundant stumps, rocks, or fallen logs. When inactive or tending young, it occupies burrows under rocks, stumps, logs, trees, bushes, or cabins, in rock crevices, or in banks or along washes.

Breeding occurs in the spring soon after females emerge from hibernation. Females are monoestrous. Gestation lasts 26-33 days. Litter size is 2-8, usually 4-6. Young emerge from burrow typically in July (to early August at highest elevations). Weaning occurs at a minimum age of four weeks.

Predators include snakes, foxes, weasels, and bears. This species may be an intermediate host for the Rocky Mountain spotted fever tick, Dermacentor andersoni. These squirrels are omnivorous. Diet includes seeds, fungus, leaves, flowers, fruits and roots. They also feed on arthropods and meat, including carrion. May store food in burrows in summer. Active mainly March-November at low elevations; season is shorter in high mountains and in areas with abundant snowfall.
Generation Length (years):4

Threats [top]

Major Threat(s): There are no major threats to this species.

Conservation Actions [top]

Conservation Actions: This species is not of conservation concern and its range includes several protected areas.

Classifications [top]

1. Forest -> 1.4. Forest - Temperate
3. Shrubland -> 3.4. Shrubland - Temperate
0. Root -> 6. Rocky areas (eg. inland cliffs, mountain peaks)

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Conservation sites identified:Yes, over entire range
In-Place Species Management
In-Place Education

Bibliography [top]

Bartels, M. A. and Thompson, D. P. 1993. Spermophilus lateralis. Mammalian Species 440: 1-8.

Hafner, D.J., Yensen, E. and Kirkland, G.L., Jr. 1998. Status survey and conservation action plan - North American Rodents. IUCN/SSC Rodent Specialist Group, Gland, Switzerland.

IUCN. 2016. The IUCN Red List of Threatened Species. Version 2016-3. Available at: (Accessed: 07 December 2016).

Wilson, D.E. and Ruff, S. 1999. The Smithsonian Book of North American Mammals. Smithsonian Institution Press, Washington, DC, USA.

Citation: Cassola, F. 2016. Callospermophilus lateralis. In: . The IUCN Red List of Threatened Species 2016: e.T42468A22265474. . Downloaded on 24 February 2018.
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