Collie's squirrel

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

Collie's squirrel
Sciurus colliaei observed in Sinaloa, Mexico

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Sciuridae
Genus: Sciurus
Species:
S. colliaei
Binomial name
Sciurus colliaei
Collie's squirrel range

Distribution

The Collie's squirrel is native to the western coast of Mexico, including the states of Sonora, Chihuahua, Sinaloa, Durango, Nayarit, Jalisco, and Colima.[3] The species inhabits areas of thick tropical and subtropical vegetation, especially in Jalisco. It is also known to occupy subtropical canyons in the northern part of its range.[4]

Description

Sometimes referred to as a "gray squirrel" in Mexico, the Collie's squirrel is a medium-sized squirrel with a gray coat. The back (dorsum) is usually a darker gray with a yellowish wash down to the tail's base. The species sides are usually a light gray and the underside is typically white, although it can sometimes be a light orange color. The top of the tail, with the exception of the base, is black with a white wash. The underside of the tail is gray and the sides white.[5]

Recorded measurements of the Collie's squirrel average female specimens as measuring 243.4mm from head to base of tail and 260.4mm on the length of the tail. Males were recorded as measuring 248.6mm head to base of tail and 243.2mm on the length of the tail. Females were recorded as weighing 440.8g and males 335.2g.[6]

Behaviour

The Collie's squirrel lives chiefly in trees and is diurnal, most active just after sunrise and before sunset. They have been reported to nest on outer tree branches and within tree trunks' cavities, as well as abandoned termite nests.[7] It is believed that the species breed in March and April. [8]

Diet

Collie's squirrels have a specialized diet of the fruits and nuts of palms, figs, and possibly oaks.[9]

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References
  1. de Grammont, P. C.; Cuarón, A. & Vázquez, E. (2008). "Sciurus colliaei". IUCN Red List of Threatened Species. 2008. Retrieved 6 January 2009.CS1 maint: ref=harv (link)
  2. Thorington, R.W., Jr.; Hoffmann, R.S. (2005). "Sciurus (Sciurus) colliaei". In Wilson, D.E.; Reeder, D.M (eds.). 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.
  3. Squirrels of the world. Thorington, Richard W. Baltimore: Johns Hopkins University Press. 2012. ISBN 9781421408682. OCLC 821734054.CS1 maint: others (link)
  4. Squirrels of the world. Thorington, Richard W. Baltimore: Johns Hopkins University Press. 2012. ISBN 9781421408682. OCLC 821734054.CS1 maint: others (link)
  5. Squirrels of the world. Thorington, Richard W. Baltimore: Johns Hopkins University Press. 2012. ISBN 9781421408682. OCLC 821734054.CS1 maint: others (link)
  6. Squirrels of the world. Thorington, Richard W. Baltimore: Johns Hopkins University Press. 2012. ISBN 9781421408682. OCLC 821734054.CS1 maint: others (link)
  7. Squirrels of the world. Thorington, Richard W. Baltimore: Johns Hopkins University Press. 2012. ISBN 9781421408682. OCLC 821734054.CS1 maint: others (link)
  8. Squirrels of the world. Thorington, Richard W. Baltimore: Johns Hopkins University Press. 2012. ISBN 9781421408682. OCLC 821734054.CS1 maint: others (link)
  9. Squirrels of the world. Thorington, Richard W. Baltimore: Johns Hopkins University Press. 2012. ISBN 9781421408682. OCLC 821734054.CS1 maint: others (link)
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