Identification:
Size: Small.
Fur: The dorsal fur base is gray, with light white tips. Cheeks and belly are pale white or creamy white.
Wings: The fur on the wing membrane is dark brown.
Tail: Bushy, dark brown. The underside of the tail has a pale white stripe in the center.
Biology and Ecology:
Typically inhabits old-growth forests, including mixed forests on high mountains, with a particular preference for forests of oak ( Quercus) species. They nest in high tree hollows. Black and white flying squirrels can give birth to 1-3 offspring during the dry season. However, knowledge of the biology of this species is limited.
Distribution:
Vietnam: Lai Chau, Lang Son, Thua Thien – Hue, Kon Tum, Gia Lai, Lam Dong. Recent sightings have also been recorded in Cao Bang (Pia Oac) and Lang Son (Huu Lien).
Global: Nepal, Myanmar, Southern China, Thailand, Laos.
Value:
A rare and unique mammal of tropical forests. It has scientific and tourism value. Conservation of the gene pool and propagation of the species could hold export value.
Conservation Status:
Historical: Before 1985, the area of distribution was approximately 60,000 km², and the habitat was around 5,000 km².
Present: Due to the degradation of old-growth forests and habitat fragmentation, the remaining habitat is approximately 2,000 km². Previously abundant, the population has declined, with an estimated reduction of 20%.
Classification:
VU A1c B1 + 2b,c
Conservation Measures:
Included in the Vietnam Red Book. Logging and timber exploitation are prohibited in forests inhabited by the black and white flying squirrel.