Critically Endangered
Gray-shanked douc
Pygathrix cinerea
The total population was estimated at 550 to 700 individuals in 2004.
Appearance
Grey-shanked doucs are very similar in appearance to P. Nemaeus. Their feet and hand are black and their shins are dark grey. The face is brownish orange on top with a white chin.
Males are slightly larger than females, averaging 10.9 kg (24 lb). Females average about 8.2 kg (18 lb).
Range and habitat
The grey-shanked douc langur is a douc species native to the Vietnamese provinces of Quảng Nam, Quảng Ngãi, Bình Định, Kon Tum, and Gia Lai. Benjamin Rawson, Country Director of Fauna & Flora International's Vietnam Programme, announced a discovery of an additional population among them more than 500 individuals found in Central Vietnam, bringing the total population up to approximately 1000 individuals.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Breeding
Grey-shanked doucs are diurnal and primarily arboreal. Facial expressions are also used during courtship.
The breeding season usually occurs between August and December and gestation is about 165 to 190 days. When courting, potential mates will use facial expressions to indicate that they are ready to copulate.
In crisis
The total population was estimated at 550 to 700 individuals in 2004. The grey-shanked douc langur is listed on the IUCN Red List as critically endangered. The Vietnam War also reduced the population.
Deforestation and habitat fragmentation are also major threats. Researchers have concluded that due to the major deforestation and climate change of these provinces of Vietnam, that the population of the Grey-shanked duoc will sharply decline in the next coming years (Vu et al., 2020).
CITES lists this taxon on Appendix I. Confirm the current appendix on the CITES checklist.
Gray-shanked douc is Critically Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Gray-shanked douc, Wikidata item Q591886. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
