Callosciurus erythraeus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Sciuridae

Scientific Name: Callosciurus erythraeus (Pallas, 1779)
Common Name(s):
English Pallas's Squirrel
Taxonomic Notes: A major structured program of collecting is required to clarify the complex taxonomy of this species in Lao PDR (Evans et al. 2000). Often occurs in reports under the name C. flavimanus even in lists that also include C. erythraeus. This is symptomatic over the general confusion of squirrel identification in the region (Duckworth et al. pers. comm.). There are many named and still unnamed forms in Thailand, Lao PDR and Viet Nam some of which have small ranges. Whether any merit species rank is unclear but there is no persuasive reason for any as yet detected form to be considered at risk (Duckworth et al. pers. comm.).

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2017
Date Assessed: 2016-12-22
Assessor(s): Duckworth, J.W., Timmins, R.J. & Molur, S.
Reviewer(s): Amori, G.
Listed as Least Concern in view of its wide distribution, presumed large population, it occurs in a number of protected areas, has a tolerance of a degree of habitat modification, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is widely distributed in northeastern South Asia, much of central and southern China, and mainland Southeast Asia. In South Asia, the species is known to occur in Bangladesh and northeastern India (Molur et al. 2005). It is widely distributed in the region. In China, it has been recorded from Sichuan, Yunnan, Guandong, Guangxi, Hunan, Guizhou, Hainan Island, Xizang, Zhejiang, Fujian, Jiangsu, Anhui, Henan and Hubei (Smith and Xie 2008). It has been recorded from the island of Taiwan. In Southeast Asia, it is present in Myanmar, northern Thailand, Lao PDR, Viet Nam, eastern Cambodia and Peninsular Malaysia.
Countries occurrence:
Bangladesh; Cambodia; China; India; Lao People's Democratic Republic; Malaysia; Myanmar; Taiwan, Province of China; Thailand; Viet Nam
Additional data:
Estimated area of occupancy (AOO) - km2:>2000
Lower elevation limit (metres):200
Upper elevation limit (metres):3000
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This is generally a locally common species. During a survey of Lao PDR in 1994-95, Evans et al. (2000) found this species to be common and widespread as did Duckworth et al. (1994).
Current Population Trend:Stable
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:It is diurnal and arboreal species typically occurring in subtropical montane evergreen and broadleaved forests, although in China it is also present in subalpine coniferous forests or in a mix of conifers and broadleaf trees at altitudes above 3,000 m asl (Smith and Xie 2008). It has been found to occupy tree hollows in mid high canopy. Very flexible in terms of habitat; Duckworth and Robichaud (2005) found in heavily degraded scrub landscapes with small degraded forest patches in far northern Lao PDR, It has a generation time of two to three years.
Generation Length (years):4

Use and Trade [top]

Use and Trade: It is hunted for food.

Threats [top]

Major Threat(s): There are no major threats to this species. Hunting for consumption has depleted some South Asian populations (Molur et al. 2005).

Conservation Actions [top]

Conservation Actions: It is known from the following protected areas in India: Eagle’s Nest Wildlife Sanctuary, Kamlang Wildlife Sanctuary, Namdapha National Park, Pakhui Wildlife Sanctuary, Sessa Orchid Sanctuary and Tale Valley Wildlife Sanctuary in Arunachal Pradesh (Molur et al. 2005). It is presumably present in many protected areas in China and Southeast Asia.

Classifications [top]

1. Forest -> 1.4. Forest - Temperate
1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
1. Forest -> 1.9. Forest - Subtropical/Tropical Moist Montane
3. Shrubland -> 3.6. Shrubland - Subtropical/Tropical Moist

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Conservation sites identified:Yes, over entire range
  Occur in at least one PA:Yes
In-Place Species Management
In-Place Education
1. Research -> 1.1. Taxonomy
1. Research -> 1.2. Population size, distribution & trends
3. Monitoring -> 3.1. Population trends

Bibliography [top]

Duckworth, J.W. and Robichaud, W.G. 2005. Yellow-bellied Weasel Mustela kathiah sightings in Phongsaly province, Laos, with notes on the species' range in South-East Asia, and recent records of other small carnivores in the province. Small Carnivore Conservation 33: 17–20.

Duckworth, J.W., Salter, R.E. and Khounboline, K. 1999. Wildlife in Lao PDR: 1999 Status Report. IUCN, Vientiane, Laos.

Duckworth, J.W., Timmins, R.J., Thewlis, R.C.M., Evans, T.D. and Anderson, G.Q.A. 1994. Field observations of mammals in Laos, 1992-1993. Natural History Bulletin of the Siam Society 42: 177-205.

Evans, T.D., Duckworth, J.W. and Timmins, R.J. 2000. Field observations of larger mammals in Laos, 1994-1995. Mammalia 64(1): 55-100.

IUCN. 2017. The IUCN Red List of Threatened Species. Version 2017-2. Available at: (Accessed: 14 September 2017).

Lekagul, B. and McNeely, J.A. 1977. Mammals of Thailand. Association for the Conservation of Wildlife, Bangkok, Thailand.

Molur, S., Srinivasulu, C., Srinivasulu, B., Walker, S., Nameer, P.O. and Ravikumar, L. 2005. Status of non-volant small mammals: Conservation Assessment and Management Plan (C.A.M.P) workshop report. Zoo Outreach Organisation / CBSG-South Asia., Comibatore, India.

Moore, J.C. and Tate, G.H.H. 1965. A study of the diurnal squirrels, Sciurinae, of the Indian and Indo-Chinese subregions. Fieldiana Zoologica 48: 1-351.

Smith, A.T. and Xie, Y. 2008. A Guide to the Mammals of China. Princeton University Press, Princeton, New Jersey.

Citation: Duckworth, J.W., Timmins, R.J. & Molur, S. 2017. Callosciurus erythraeus. The IUCN Red List of Threatened Species 2017: e.T3595A22254356. . Downloaded on 25 June 2018.
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