Yellow-cheeked crested gibbons occur in northeastern Cambodia, southern Vietnam, and southern Lao, with Cambodia probably containing the majority of the population. In the Eastern Plains Landscape of Mondulkiri (Cambodia), a recent survey found Phnom Prich Wildlife Sanctuary to hold the second largest number of these gibbons in Cambodia after Seima Biodiversity Conservation Area.
Why is the crested gibbon under threat?
The primate population is decimated mainly by habitat loss and fragmentation
, caused by illegal logging, shifting cultivation and land encroachment; and by hunting for food, use in traditional medicine and trade