This species is known from Fan Si Pan Mountain, northern Viet Nam, on the Chinese border (Dubois 1983; Orlov et al. 2000). There are unconfirmed records from Cuc Phuong National Park (van Dijk pers. obs.) and perhaps from Doi Inthanon, Thailand (see Chan-ard et al. 1999), but these have been taken into account when mapping the range of this species, and its distribution remains very unclear.
Habitat and Ecology
This is a species that inhabs fast-flowing streams in shady forest. The referred specimen from Cuc Phuong was found at the side of a stream in a karst forest area at about 400m asl (van Dijk 2000). The specimen from Doi Inthanon was found near a peat swamp area in a stream at 2,550m asl (Chan-ard et al. 1999).
It is relatively common at Fan Si Pan Mountain.
The major threats to this species are forest degradation (due to agricultural development and logging) and stream pollution. All three known and referred localities are also popular tourist destinations, with associated development plans and threats.
More information is needed on the taxonomy, distribution and population status of this species, while conservation measures should focus on ensuring that all distinct taxa are included in securely protected areas. The Fan Si Pan type locality is included in Hoang Lien Son Nature Reserve. The referred Cuc Phuong and Doi Inthanon locations are also already protected.
Red List Status
Data Deficient (DD)
Listed as Data Deficient in view of continuing doubts as to its taxonomic validity as well as absence of recent information on its extent of occurrence, status and ecological requirements.
The taxonomic status of this species is uncertain.
Peter Paul van Dijk, Annemarie Ohler 2004. Leptolalax bourreti. The IUCN Red List of Threatened Species 2004: e.T57563A11658404. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T57563A11658404.en .Downloaded on 23 January 2019