Callosciurus finlaysonii 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Sciuridae

Scientific Name: Callosciurus finlaysonii
Species Authority: (Horsfield, 1823)
Common Name(s):
English Variable Squirrel, Finlayson’s Squirrel
Taxonomic Notes: Revised and expanded to include ferrugineus by Corbet and Hill (1992).

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Duckworth, J.W., Timmins, R. & Parr, M.
Reviewer(s): Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
This species is listed as Least Concern in because of its wide distribution, occurrence in a number of protected areas, tolerance to some degree of habitat modification, 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 only in central Indochina from central Myanmar southeast through much of Thailand and Lao PDR and Cambodia to the Mekong Delta of Viet Nam (Moore and Tate 1965; Corbet and Hill 1992; Oshida et al. 2001).
An apparently undescribed form of this species was found in the limestone mountains of central Lao PDR (Evans et al. 2000). A small introduced population exists in Singapore (B. Lee pers. comm.).
Countries occurrence:
Cambodia; Lao People's Democratic Republic; Myanmar; Thailand; Viet Nam
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:It is common across at least its Lao range living at very high densities in large blocks of habitat. Small numbers are found in fragmented and degraded patches (Evans et al. 2000; W. Duckworth et al. pers. comm.). The introduced population on Singapore is less than 20 individuals (B. Lee pers. comm.).
Current Population Trend:Stable
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This is an arboreal species, found in many habitats including open woods, coconut plantations, and dense forest (Lekagul and McNeely 1988). It is very tolerant of degradation and fragmentation (W. Duckworth et al. pers. comm.). Ecological overlap with C. erythraeus seems to be extremely restricted but is know from parts of Khammouane Limestone National Biodiversity Conservation Area in Lao PDR (Duckworth et al. 1999).

Threats [top]

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

Conservation Actions [top]

Conservation Actions: A major structured program of collecting is required to clarify the complex taxonomy of this species in Lao PDR (Evans et al. 2000). There are many named and still unnamed forms in Thailand, Lao PDR and Viet Nam some of which have small ranges.

Citation: Duckworth, J.W., Timmins, R. & Parr, M. 2008. Callosciurus finlaysonii. The IUCN Red List of Threatened Species 2008: e.T3596A9964363. . Downloaded on 27 June 2017.
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