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 0-500m 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).
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.
Norsham Yaakob, Indraneil Das, Peter Paul van Dijk, Leong Tzi Ming, Yodchaiy Chuaynkern, Jeet Sukumaran 2008. Microhyla mantheyi. In: IUCN 2014