About Doucs

Protecting the Douc Langur

Protecting through Conservation, Education and Research

Douc langurs are endangered colobine monkeys found only in the evergreen forests of Vietnam, Cambodia and Laos. Once thought to be rare and with limited distribution, our recent fieldwork has demonstrated that small populations of doucs are widely distributed and found in a variety of forest habitats.

Map of Douc Langur Habitat

The red shanked Douc Langur has been located in the forests of north/central provinces of Vietnam and central and south eastern forests of Laos. New discoveries have also demonstrated that red shanked doucs are found in north eastern Cambodia. The black shanked douc is found in central and southern provinces of Vietnam and in the eastern and southern forests of Cambodia. Black shanked doucs do not occur in Laos. The grey shanked douc, a new and critically endangered form, has been located in a restricted distribution in central Vietnam.

All doucs are entirely restricted to wooded habitats. Populations of doucs have been found in monsoon forests as well as rainforests and their forest homes include: semi evergreen, lowland lower montane and upper montane forests types. All forests are rapidly disappearing in Vietnam, Cambodia and Laos as a direct result of intense and often illegal logging activities which supply hardwoods prized by the building trades for construction of houses, floors and furniture. Also forest land is being converted to agriculture at an increased rate as people move into the forests along with logging operations.

Black Shanked Douc
The douc langur: a time for conservation

Lippold LK. 1977. The douc langur: a time for conservation. In: Rainier III) Prince of Monaco, Bourne GH, editors. Primate Conservation. New York: Academic Press. 513-538.

Monitoring female reproductive status in the douc langur Pygathrix nemaeus at San Diego Zoo

Lippold LK. 1981. Monitoring female reproductive status in the douc langur Pygathrix nemaeus at San Diego Zoo. Int. Zoo Yearbook 21:184-187.

Natural history of douc langurs

Lippold LK. 1998. Natural history of douc langurs. In: Jablonski NG, editor. The natural history of the doucs and snub-nosed monkeys. Singapore: World Scientific. p191-206.

Distribution and conservation status of douc langurs in Vietnam

Lippold LK. 1995a. Distribution and conservation status of douc langurs in Vietnam. Asian Primates 4(4):4-6.

Primate conservation in Vietnam

Lippold LK. 1998. Primate conservation in Vietnam. In: Jablonski NG, editor. The natural history of the doucs and snub-nosed monkeys. Singapore: World Scientific. p293-300.

Douc langur variety in the central highlands of Vietnam

Lippold LK, Vu NT. 1995b. Douc langur variety in the central highlands of Vietnam. Asian Primates 5(1-2):6-8.

Doing fieldwork among the doucs in Vietnam

Lippold LK. 1999. Doing fieldwork among the doucs in Vietnam. In: Dolhinow P, Fuentes A, editors. The Non Human Primates. Mountain View Publishing Company. 170-174.

The gray-shanked douc: survey results from Tien Phuoc, Quang Nam, Viet Nam

Lippold LK, Vu NT. 2002. The gray-shanked douc: survey results from Tien Phuoc, Quang Nam, Viet Nam. Asian Prim 8(1-2):3-6.

The time is now: survival of the douc langurs of Son Tra, Vietnam

Lippold LK, Vu NT. 2008. The time is now: survival of the douc langurs of Son Tra, Vietnam. Prim Conservation 23:75-79.