Overview

Distribution

Range Description

This species occurs in the west central coast of Mexico, including Sonora, Chihuahua, Sinaloa, Durango, Nayarit, Jalisco, and Colima (Thorington and Hoffmann 2005). The elevational range is from sea level to 1,290 m to 2,190 m (Best 1995).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species can be found in thick forests along the Pacific coast in tropical or subtropical forests. It can occur in coquito palm (Arecaceae) forests intermixed with figs (Ficus) and other native tropical broadleaf trees surrounding lagoons and rivers, and also in tropical deciduous forest on slopes below the oak-pine forest (Best 1995).

It is frugivore and herbivore, feeding on nuts of coquito palms and figs. Nests of twigs and leaves may be in hollow trees or on the bushy terminal parts of tree limbs. In Southwestern Chihuahua, a female with three embryos were found in May; in Durango, in June, a female was pregnant with three embryos, and another was lactating; in Jalisco, breeding occurs in March and April, and young are present in April (Best 1995).

Systems
  • Terrestrial
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2008

Assessor/s
de Grammont, P.C., Cuarón, A. & Vázquez, E.

Reviewer/s
McKnight, M. (Global Mammal Assessment Team) & Amori, G. (Small Nonvolant Mammal Red List Authority)

Contributor/s

Justification
This species is listed as Least Concern in view of its wide distribution, presumed large population, and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category.

History
  • 1996
    Lower Risk/least concern
    (Baillie and Groombridge 1996)
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Population

Population
This species is widespread but with low densities. It is common in suitable habitat (Best 1995). In the Chamela-Cuixmala Biosphere reserve, this species is more abundant in semi-evergreen than tropical dry forest and their density varies from 0.9 - 4.3 individuals per km2 (Mandujano 1997).

Population Trend
Unknown
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Threats

Major Threats
Although not presently considered under major threats, this species habitat is affected by deforestation and it is hunted for food. It is estimated to have lost 6-8% of its population based upon habitat change over the past 15 years (C. de Granmont and A. Cuaron pers. comm.).
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Management

Conservation Actions

Conservation Actions
There are no specific conservation measures for this species. There are protected areas within its range.
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Wikipedia

Collie's squirrel

Collie's squirrel (Sciurus colliaei) is a tree squirrel in the genus Sciurus endemic to Mexico.

References[edit]

  1. ^ de Grammont, P. C., Cuarón, A. & Vázquez, E. (2008). Sciurus colliaei. In: IUCN 2008. IUCN Red List of Threatened Species. Retrieved 6 January 2009.
  2. ^ Thorington, R.W., Jr.; Hoffmann, R.S. (2005). "Sciurus (Sciurus) colliaei". In Wilson, D.E.; Reeder, D.M. Mammal Species of the World: a taxonomic and geographic reference (3rd ed.). The Johns Hopkins University Press. pp. 754–818. ISBN 0-8018-8221-4. OCLC 26158608. 
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