The Borneo black-banded squirrel (Callosciurus orestes) is a species of rodent in the family Sciuridae. It is endemic to northern Borneo.[1]
Distribution
This species is found in northern Borneo at middle elevations (Payne et al. 1985). It was known from G. Dulit (above 1,000 metres (3,300 ft)) and reported from similar altitude on Usun Apau, the Kelabit Highlands and the upper S. Terusan, all montane localities in northern Sarawak. It was also known from Mount Kinabalu (1,000โ1,700 metres (3,300โ5,600 ft)) and Mount Trusmadi (about 1,500 metres (4,900 ft)) in Sabah. It appears to be restricted to lower montane forest and to upper dipterocarp forest.
Behaviour and ecology
The upper part is finely speckled brown. A pale buffy spot behind each ears. The underside is grey, sometimes with a reddish tinge. It also has a black and buffy-white side stripe. Callosciurus orestes is diurnal. They are active in small to medium-sized trees. Recently, fruit and black ants were found out in the two species of Mount Kinabalu.
Conservation status
Based on The IUCN Red List Threatened Species, Callosciurus orestes is of Least Concern. It is listed as Least Concern as it is a middle montane species with a wide range. Some forest loss is occurring but not enough to list as Near Threatened.
References
- Thorington, R. W. Jr. and R. S. Hoffman. 2005. Family Sciuridae. pp. 754โ818 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.
- Payne, J., C. M. Francis, and K. Phillipps 1985. A field guide to the mammals of Borneo. Kota Kinabalu: The Sabah Society
|
|---|
|
| Callosciurus | |
|---|
Dremomys (Red-cheeked squirrels) |
- Bornean mountain ground squirrel (Dremomys everetti)
- Red-throated squirrel (Dremomys gularis)
- Orange-bellied Himalayan squirrel (Dremomys lokriah)
- Perny's long-nosed squirrel (Dremomys pernyi)
- Red-hipped squirrel (Dremomys pyrrhomerus)
- Asian red-cheeked squirrel (Dremomys rufigenis)
|
|---|
| Exilisciurus |
- Philippine pygmy squirrel (Exilisciurus concinnus)
- Least pygmy squirrel (Exilisciurus exilis)
- Tufted pygmy squirrel (Exilisciurus whiteheadi)
|
|---|
| Funambulus |
- Subgenus Funambulus: Layard's palm squirrel (Funambulus layardi)
- Dusky palm squirrel (Funambulus obscurus)
- Indian palm squirrel (Funambulus palmarum)
- Nilgiri palm squirrel (Funambulus sublineatus)
- Jungle palm squirrel (Funambulus tristriatus)
|
|---|
| Glyphotes |
- Sculptor squirrel (Glyphotes simus)
|
|---|
| Hyosciurus |
- Montane long-nosed squirrel (Hyosciurus heinrichi)
- Lowland long-nosed squirrel (Hyosciurus ileile)
|
|---|
Lariscus (striped ground squirrels) |
- Four-striped ground squirrel (Lariscus hosei)
- Three-striped ground squirrel (Lariscus insignis)
- Niobe ground squirrel (Lariscus niobe)
- Mentawai three-striped squirrel (Lariscus obscurus)
|
|---|
| Menetes |
- Berdmore's ground squirrel (Menetes berdmorei)
|
|---|
| Nannosciurus |
- Black-eared squirrel (Nannosciurus melanotis)
|
|---|
| Prosciurillus |
- Secretive dwarf squirrel (Prosciurillus abstrusus)
- Alston's Sulawesi dwarf squirrel (Prosciurillus alstoni)
- Whitish dwarf squirrel (Prosciurillus leucomus)
- Celebes dwarf squirrel (Prosciurillus murinus)
- Sanghir squirrel (Prosciurillus rosenbergii)
- Roux's Sulawesi dwarf squirrel (Prosciurillus topapuensis)
- Weber's dwarf squirrel (Prosciurillus weberi)
|
|---|
| Rhinosciurus |
- Shrew-faced squirrel (Rhinosciurus laticaudatus)
|
|---|
| Rubrisciurus | |
|---|
| Sundasciurus |
- Subgenus Aletesciurus: Davao squirrel (Sundasciurus davensis)
- Bornean mountain ground squirrel (Sundasciurus everetti)
- Horse-tailed squirrel (Sundasciurus hippurus)
- Northern Palawan tree squirrel (Sundasciurus juvencus)
- Mindanao squirrel (Sundasciurus mindanensis)
- Culion tree squirrel (Sundasciurus moellendorffi)
- Philippine tree squirrel (Sundasciurus philippinensis)
- Palawan montane squirrel (Sundasciurus rabori)
- Samar squirrel (Sundasciurus samarensis)
- Southern Palawan tree squirrel (Sundasciurus steerii)
- Subgenus Sundasciurus: Brooke's squirrel (Sundasciurus brookei)
- Fraternal squirrel (Sundasciurus fraterculus)
- Jentink's squirrel (Sundasciurus jentinki)
- Low's squirrel (Sundasciurus lowii)
- Natuna squirrel (Sundasciurus natunensis)
- Robinson's squirrel (Sundasciurus robinsoni)
- Upland squirrel (Sundasciurus tahan)
- Slender squirrel (Sundasciurus tenuis)
- Subgenus incertae sedis:
- Sumatran mountain squirrel (Sundasciurus altitudinis)
|
|---|
Tamiops (Asiatic striped squirrels) | |
|---|
Category |
Taxon identifiers |
|---|
| Callosciurus orestes | |
|---|