Sciurus alleni 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Sciuridae

Scientific Name: Sciurus alleni Nelson, 1898
Common Name(s):
English Allen's Squirrel
Taxonomic Notes: Generic synonyms = Guerlingeutus; Neosciurus.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2016
Date Assessed: 2016-06-10
Assessor(s): de Grammont, P.C. & Cuarón, A.
Reviewer(s): Amori, G.
Listed as Least Concern in view of its wide distribution, presumed large population, occurrence in protected areas, and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species occurs in south-east Coahuila through central Nuevo Leon, and south through west Tamaulipas to extreme north San Luis Potosi in the north eastern section of the Mexican Plateau (Hoffmann and Thorington 2005, Escalante 2009). It occurs from 600 to 2,550 m.
Countries occurrence:
Mexico (Coahuila, Nuevo León, San Luis Potosí, Tamaulipas)
Additional data:
Lower elevation limit (metres):600
Upper elevation limit (metres):2550
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:It can be uncommon in some parts of its range, however, in other places it may be common (Best 1995).
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species is found primarily in oak and oak-pine forests (Best 1995). In some localities it was observed during the early morning hours. Nests may be inside natural cavities of trees or built of leaves and sticks placed on branches of trees. Larvae and adult insects are common in the diet; peanuts, corn, oats, apples, peaches, mangos, plums, grapes, tomatoes, and anurans also are consumed. This species occasionally enters cornfields and can cause considerable damage to ripening corn. Several females were recorded with embryos (2 to 4) in March, July, and August; two females in April were lactating; and a nest containing several small young was found in August in a hollow branch of a tree (Best 1995).
Generation Length (years):5-6

Use and Trade [top]

Use and Trade: It is hunted for food.

Threats [top]

Major Threat(s): This species is threatened by deforestation and hunting (for food). It is estimated to have lost 13-23% of its population based upon habitat change over the past three generations (C. de Granmont and A. Cuaron pers. comm.).

Conservation Actions [top]

Conservation Actions: There are no specific conservation measures in place for this species. The species is common in Cumbres de Monterey National Park.

Citation: de Grammont, P.C. & Cuarón, A. 2016. Sciurus alleni. The IUCN Red List of Threatened Species 2016: e.T20004A22248517. . Downloaded on 21 September 2017.
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