Notocitellus annulatus 

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Sciuridae

Scientific Name: Notocitellus annulatus Audubon & Bachman, 1842
Common Name(s):
English Ring-tailed Ground Squirrel
Spermophilus annulatus Audubon & Bachman, 1842
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.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2016
Date Assessed: 2016-09-01
Assessor(s): Álvarez-Castañeda, S.T., Castro-Arellano, I., Lacher, T. & Vázquez, E.
Reviewer(s): Amori, G.
This species is listed as Least Concern in view of its presumed large population, and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category, it is also abundant within its limited distribution.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species occurs from Nayarit south to northern Guerrero, Mexico (Thorington and Hoffmann 2005). It occurs at elevations from sea level to 1,200 m (Best 1995).
Countries occurrence:
Mexico (Colima, Guerrero, Jalisco, Michoacán, Nayarit)
Additional data:
Upper elevation limit (metres):1200
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is common and abundant in suitable habitats (Best 1995).
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This squirrel inhabits dense, tropical, deciduous forests, and is common in plains. Its burrows are on hillsides among rocks, and in sandy flats along walls and hedges bordering cultivated fields. It also occurs in the shade of the dense groves of oil palms (Arecaceae), with its burrows under masses of fallen palm fronds or sheltered by the thorny growth of mesquite (Prosopis) and catclaw (Acacia).

This squirrel eats fruits and nuts, and sometimes it also may feed on insects. Breeding occurs during the dry season (December to June). A female captured in February had four embryos (Best 1995).
Generation Length (years):2-3

Threats [top]

Major Threat(s): No major threats are known to this species.

Conservation Actions [top]

Conservation Actions: A number of protected areas occur within its range.

Classifications [top]

1. Forest -> 1.5. Forest - Subtropical/Tropical Dry
1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
14. Artificial/Terrestrial -> 14.3. Artificial/Terrestrial - Plantations

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]

Best, T. L. 1995. Spermophilus annulatus. Mammalian Species 508: 1-4.

Hoffmann, R.S. and Thorington, R.J. 2005. Family Sciuridae. In: E. Wilson and D.M. Reeder (eds), Mammal Species of the World, pp. 754-818. John Hopkins University Press, Baltimore, Maryland, USA.

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

Pacifici, M., Santini, L., Di Marco, M., Baisero, D., Francucci, L., Grottolo Marasini, G., Visconti, P. and Rondinini, C. 2013. Generation length for mammals. Nature Conservation 5: 87–94.

Citation: Álvarez-Castañeda, S.T., Castro-Arellano, I., Lacher, T. & Vázquez, E. 2016. Notocitellus annulatus. The IUCN Red List of Threatened Species 2016: e.T20479A22265951. . Downloaded on 18 June 2018.
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