This species is known only from the type locality within Kalakad-Mundanthurai Tiger Reserve in Tamil Nadu, in the southern Western Ghats of India, at an elevation of 700m asl.
Habitat and Ecology
The original collection took place in shallow water within disturbed tropical moist forest, close to a cardamom plantation. It is also believed to occur within undisturbed forest. It presumably breeds by larval development in streams.
It is a recently described frog that has only been recorded twice, and is reportedly not a common species (Ravichandran pers. comm.).
The major threat to this species is the cultivation of cardamom and tea in the buffer zone of Kalakad-Mundanthurai Tiger Reserve.
It is currently known only from the Kalakad-Mundanthurai Tiger Reserve in Tamil Nadu, and it is included in national legislation. There is a need for further survey work to determine whether the species might occur outside the type locality.
Red List Status
Listed as Endangered because its Extent of Occurrence is less than 5,000 km2, all individuals are in fewer than five locations, and there is continuing decline in the extent and quality of its habitat in the Western Ghats of India.
S.D. Biju, Sushil Dutta, Robert Inger, M.S. Ravichandran 2004. Nyctibatrachus vasanthi. The IUCN Red List of Threatened Species 2004: e.T58405A11774299. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T58405A11774299.en .Downloaded on 21 January 2019