This species is known only from Na Hang Nature Reserve, in Tuyen Quang Province in northern Viet Nam (Lathrop et al. 1998). Records from Sa Pa (Fan Si Pan) and Tam Dao (Orlov et al. 2000) seem to be in error. It might occur more widely.
Habitat and Ecology
This species is known from a cave entrance at 314m asl. The general surroundings are karst forest ranging from 300-800m asl. Breeding presumably occurs in streams.
There is no information available on its population status.
Forest destruction and stream pollution might be significant threats in the wider area, but more information is needed to determine the specific threats to this species.
Its only known locality is within Na Hang Nature Reserve, established in 1994, which is considered relatively undisturbed (BirdLife International 2001).
Red List Status
Data Deficient (DD)
Listed as Data Deficient since it has only recently been discovered, and there is still very little information on its extent of occurrence, population status and ecological requirements.
Peter Paul van Dijk, Steven Swan 2004. Leptolalax nahangensis. The IUCN Red List of Threatened Species 2004: e.T57570A11646401. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T57570A11646401.en .Downloaded on 20 January 2019