This species is endemic to the southern Western Ghats of India. Populations occur at Ponmudi, Periyar Tiger Reserve and Wayanad Wildlife Sanctuary (in Kerala), Kalakad-Mundanthurai Tiger Reserve (in Tamil Nadu) and Coorg and Kudremukh National Park (in Karnataka). It has an altitudinal range of 800-1,200m asl.
Habitat and Ecology
It is a terrestrial species associated with hill streams in wet evergreen and semi-evergreen tropical forests and swamps. It may be found at forest edges, but not in agricultural land. Breeding takes place on wet rocks, and the larvae are found on wet rock surfaces next to streams.
It is locally common.
The main threat to this species is the loss of forested areas following conversion to agricultural land (including coffee, tea and cardamom plantations), and harvesting of wood and timber by local people for subsistence purposes.
It has been recorded from Kudremukh National Park (in Karnataka), Kalakad-Mundanthurai Tiger Reserve (in Tamil Nadu) and Wayanad Wildlife Sanctuary and Periyar Tiger Reserve (in Kerala). It has been included in field studies by Ravichandran (1995-1997) and Biju (2000-present). It is protected by national legislation.
Red List Status
Listed as Endangered because its Extent of Occurrence is less than 5,000 km2, its distribution is severely fragmented, and there is continuing decline in the extent and quality of its habitat.
A number of specimens referred to this species in the past are likely to have been misidentified (S.D. Biju pers. comm.).
S.D. Biju, Sushil Dutta, Robert Inger 2004. Indirana brachytarsus. The IUCN Red List of Threatened Species 2004: e.T58308A11762210. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T58308A11762210.en .Downloaded on 18 January 2019