This species is known only from a few specimens from Bunguran Besar and Mt. Ranai on Great Natuna Island, Indonesia (A. Riyanto pers. comm. May 2017). The maximum extent of occurrence (EOO) for this species is that of Great of Natuna Island: 2,079 km2.
Habitat and Ecology
It occurs in submontane forest areas (A. Riyanto pers. comm. May 2017), and probably breeds in still water temporary pools and puddles.
There were no records since its discovery, until its rediscovery in 2002 (Leong et al. 2003) and again in 2011 at Mt. Ranai (A. Riyanto pers. comm. May 2017), however its population status remains unknown. It is only known from six specimens.
The forest at Mt. Ranai is within a local conservation area and there is no current threat to the species there (A. Riyanto pers. comm. May 2017). There is no direct information available on the threats to this species at the type locality, although it might be seriously threatened if forest loss is taking place there.
It occurs within a local conservation area at Mt. Ranai, where there are no threats or harvesting activities at present (A. Riyanto pers. comm. May 2017).
Studies on its distribution, population status, ecology, and threats are needed.
Red List Status
Data Deficient (DD)
Listed as Data Deficient in view of continuing uncertainties as to its extent of occurrence, population status and ecological requirements.
IUCN SSC Amphibian Specialist Group 2018. Kalophrynus bunguranus. The IUCN Red List of Threatened Species 2018: e.T57834A96065366. http://dx.doi.org/10.2305/IUCN.UK.2018-1.RLTS.T57834A96065366.en .Downloaded on 16 January 2019