Vietnam Primate Conservation Status Review 2002 - Hoang Lien ...

Vietnam Primate Conservation Status Review Part 2: LEAF MONKEYS
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forest (west of the district), less than 200m north of the base camp (12 O 43’27”N / 107 O 42’59”E) at 300
m a.s.l. The animals were about 30m from the observer and were positively identified as P. nigripes.
One group of 6 individuals was also observed by the team at 12 O 43’48”N / 107 O 42’51”E. However, the
animals showed features of the Grey-shanked species.
During a FZS survey in December 2001 one hunter identified two different forms of douc langurs. He
pointed out that usually the Black-shanked douc langur occurs in the area, while the Grey-shanked
douc very rare, and he had never seen both species together in one group. The last sightings reported
from different locals were:
July 2001-one group with 50-60 individuals in Dak Klau area; August 2001- one group with 15-20
individuals in Ea Mao area (Chief of FPD Dak Wil); September 2001- one group with about 15,
another with over 20 individuals in Ea Mao and Dak Drich areas; December 2001- one group with
20-30 individuals in Dak Drich area.
Dak Mil District (Dak Lak)
Special use forest: None
Douc langur status: Provisional occurrence, last report 2001 (Ha Thang Long & Le Thien Duc, 2001)
Species recorded: P. nigripes (interview, specimen)
During a FZS survey, locals reported sightings of Black-shanked douc langurs. Last reports: April
2001 one group with 5-7 individuals north-west of Dak Lao commune, one group with about 20
individuals in Dak Lup area.
A hunter in Dak Lao village reported that he had shot more than 100 Black-shanked douc langurs
between 1984 and 2001.
Dak R’Lap District (DAK LAK)
Special use forest: None
Douc langur status: Provisional occurrence, last report 2001 (Ha Thang Long & Le Thien Duc, 2001)
Species recorded: P. nigripes (interview)
During a FZS survey in December 2001 local people reported that, close to the borderline to Cambodia,
two groups of Black-shanked douc langurs occur with 27 to 30 individuals in total. The last sighting
was at the end of November 2001 in Quang Truc village. One animal from a group of 10 was shot.
M’Drak District (DAK LAK)
Special use forest: None
Douc status: Occurrence confirmed, last evidence in 1992 (Pham Nhat, 1994a)
Species recorded: P. nigripes (sighting and specimen)
One adult male, skin and skull (FCXM 05/3) was collected in June 1992 by Hoang Son. This specimen
seems to be like P. nigripes but has white wrists (Fooden, 1996). Pham Nhat (1994a) observed one
group of 27 individuals in June 1992, which he reported to be P. nigripes. Over a five day survey in
June 1997, the same author saw no douc langurs (Pham Nhat, pers. comm., 2000). BirdLife and
IEBR surveyed this area for the green peafowl (Brickle et al., 1998) in March to May 1998. Doucs were
reported by a local guide to be uncommon.