This species is known from central Sarawak and adjacent Kalimantan, Borneo, below 300m asl. It is likely to occur a little more widely than current records suggest.
Habitat and Ecology
It lives in hilly lowland rainforest and breeds along small, clear, rocky streams. Larvae cling to the rocks in strong currents and feed on lithophytic algae. It appears to be unable to adapt to modified habitats.
It is a locally abundant species.
The principal threat to this species is habitat loss due to clear-cutting.
This species has been recorded from several protected areas, but more effective protection of lowland rainforest is needed.
Red List Status
Near Threatened (NT)
Listed as Near Threatened since although this species is still relatively widely distributed, it depends on streams in areas of undisturbed forest habitat, and so its Area of Occupancy is probably not much greater than 2,000 km2, and the extent and quality of its habitat is declining very rapidly due to widespread forest loss within its range, thus making the species close to qualifying for Vulnerable.
Robert Inger, Djoko Iskandar, Indraneil Das, Robert Stuebing, Maklarin Lakim, Paul Yambun, Mumpuni 2004. Meristogenys phaeomerus. The IUCN Red List of Threatened Species 2004: e.T58374A11761854. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T58374A11761854.en .Downloaded on 21 January 2019