This species is known from Peninsular Thailand (two sites), Peninsular Malaysia (including the island of Pulau Sibu on the east coast) and Singapore (Berry 1975, Dring 1979, Chan-ard et al. 1999, Leong 2000, Das et al. 2007). It has recently been recorded from a single locality in West Sumatra. It probably occurs more widely than current records suggest, especially in areas between known sites. It has an altitudinal range of 0-500 m asl.
Habitat and Ecology
It is known from lowland areas of primary rainforest, forest edges, moderately modified rainforest, and "secondary trackside growth" (Dring 1979). Explosive breeding takes place in forest pools. Adults are generally found in leaf-litter.
This species is frequently encountered (N. Yaakob pers. comm.).
The major threats to this species are largely unknown, although it is unlikely to tolerate extensive forest degradation from logging and expanding oil palm plantations.
More information is needed about the species' population status, distribution and conservation biology. Effective preservation of lowland forest is essential for the survival of the species. It is present in Taman Negara National Park in Malaysia, and in some protected areas in Thailand (Chan-ard et al. 1999).
Red List Status
Least Concern (LC)
Listed as Least Concern in view of its relatively wide distribution, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
We follow Das et al. (2007) in separating mainland populations of frogs formerly assigned to Microhyla borneensis as M. mantheyi. We provisionally assign animals from Sumatra to M. mantheyi, pending resolution of their taxonomic status.
Yaakob, N., Das, I., van Dijk, P.P., Ming, L., Chuaynkern, Y. & Sukumaran, J. 2008. Microhyla mantheyi. The IUCN Red List of Threatened Species 2008: e.T136090A86084563. http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T136090A4231327.en .Downloaded on 23 January 2019