Sundasciurus everett (Thomas, 1890)

Don E. Wilson, Thomas E. Lacher, Jr & Russell A. Mittermeier, 2016, Sciuridae, Handbook of the Mammals of the World – Volume 6 Lagomorphs and Rodents I, Barcelona: Lynx Edicions, pp. 648-837 : 728-729

50.

Bornean Mountain Ground Squirrel

Sundasciurus everett

French: Ecureuil d’Everett / German: Everett-Hérnchen / Spanish: Ardilla de montana de Borneo

Taxonomy. Sciurus everetti Thomas, 1890 ,

“Mount Penrisen, West Sarawak,”

(Malay-

sia).

This species is monotypic.

Distribution. N, C & W Borneo Mts.

Descriptive notes. Head-body 155-175 mm, tail 98-111 mm; weight c.130 g. The Bornean Mountain Ground Squirrel is a dark squirrel with rounded ears and brown speckled dorsum, venter is gray with buffy white-tipped hairs; tail is black with red-tipped hairs.

Habitat. Forests at elevations above ¢.975 m, less common in secondary forests and fruit plantations.

Food and Feeding. The Bornean Mountain Ground Squirrel is reported to feed on insects (35% of the stomach contents of 19 individuals), earthworms, fruits and nuts, and leaves and shoots.

Breeding. There is no information available for this species.

Activity patterns. There is no specific information available for this species, but the Bornean Mountain Ground Squirrelis diurnal.

Movements, Home range and Social organization. There is no specific information available for this species, but the Bornean Mountain Ground Squirrel is terrestrial.

Status and Conservation. Classified as Least Concern on The IUCN Red List. The Bornean Mountain Ground Squirrel is a common species and it can tolerate secondary forests and fruit orchards, although it appears to be more common in primary forest. Major threat to the Bornean Mountain Ground Squirrel is deforestation due to land conversion for agriculture.

Bibliography. Davis (1958, 1962), Harrison (1954), Hawkins et al. (2016), Lunde, Duckworth et al. (2008c), Moore (1958a), Moore & Tate (1965), Payne & Francis (1985), Thorington et al. (2012).

Figures

42. Low’s Squirrel (Sundasciurus low), 43. Slender Squirrel (Sundasciurus tenuis), 44. Upland Squirrel (Sundasciurus tahan), 45. Mindanao Squirrel (Sundasciurus mindanensis), 46. Davao Squirrel (Sundasciurus davensis), 47. Sumatran Mountain Squirrel (Sundasciurus altitudinis), 48. Fraternal Squirrel (Sundasciurus fraterculus), 49. Brooke's Squirrel (Sundasciurus brookei), 50. Bornean Mountain Ground Squirrel (Sundasciurus everett), 51. Jentink’s Squirrel (Sundasciurus jentinki), 52. Indochinese Ground Squirrel (Menetes berdmorer), 53. Shrew-faced Squirrel (Rhinosciurus laticaudatus), 54. Three-striped Ground Squirrel (Lariscus insignis), 55. Foursstriped Ground Squirrel (Lariscus hosei), 56. Niobe Ground Squirrel (Lariscus niobe), 57. Mentawai Three-striped Squirrel (Lariscus obscurus), 58. Sculptor Squirrel (Glyphotes simus)