 As of 2006, only 19 populations were known, following a dramatic decline in the total population of approximately 20% between 1999 and 2004.Since that time, two of the populations have been extirpated, and only that in the Van Long Nature Reserve may still be large enough to remain viable.Classified as critically endangered by the IUCN, the primary threat to the species is hunting for traditional medicine, with loss of forest habitat and the local development of tourism also being a potential risk.