IUCN Red List Assessment
Red List Category CR
Critically Endangered
Red List Criteria A2cd+3cd+4cd;C2a(i)
Version 3.1
Year Assessed 2008
Assessor/s Timmins, R.J., Robichaud, W.G., Long, B., Hedges, S., Steinmetz, R., Abramov, A., Do Tuoc & Mallon, D.P.
Reviewer/s Hedges, S., Timmins, R.J., Robichaud, W.G. & Long, B. (Asian Wild Cattle Red List Authority)
Contributor/s Justification The species is listed as Critically Endangered. All available information indicates that the species is in a clear and protracted decline throughout its small range due to intense hunting pressure, accelerated by continued fragmentation of its habitat to increased human access (mainly through road construction). No part of the species' extent of occurrence is effectively protected from hunting. Local hunters in the species' range commonly go years without seeing an animal, indicating very low and suppressed population density. Threats from hunting are exacerbated by other factors including loss of habitat. The new Ho Chi Minh Road through the Annamite Mountains in Viet Nam, (with additional roads branching to Lao PDR) is a major and probably unmitigatable threat. Rates of decline are likely to increase rather than decrease, and a population reduction of >80% over three generations is estimated for the past, present and future (=A2cd+3cd+4cd). The remaining population is estimated at <250 mature individuals, with a continuing population decline, and largest subpopulation estimated to contain <50 mature individuals (= C2a(i)). This assessment and the conclusions are based in part on information exchanged among researchers at an international
Pseudoryx conference convened in Viet Nam in 2004 (Hardcastle
et al. 2004).
History -
2007
Critically Endangered
-
2006
Critically Endangered
(IUCN 2006)
-
2003
Endangered
(IUCN 2003)
-
1996
Endangered
-
1994
Endangered
(Groombridge 1994)