This species is known only from the forests of northern Borneo in Sabah and Sarawak (Malaysia), Kalimantan (Indonesia) and Brunei Darussalam. It is likely to occur more widely than currently recorded. It is generally a lowland species occurring between 150 and 1,050m asl.
Habitat and Ecology
It has been recorded from hilly lowland, and submontane, tropical primary moist forest. It is an arboreal species that breeds in small, clear, rocky streams. It might possibly occur in areas that have previously been used for shifting cultivation, but it cannot adapt to significantly modified habitats.
The population status of this species is unknown.
The major threat to this species is habitat loss and fragmentation due to deforestation.
It is present in a number of protected areas including Batu Apoi (Brunei), and Lanjak Anteroi and the Crocker Range (both in Sabah). The protection of lowland forests in Sabah and parts of Sarawak now provide stable habitat for this species, but expansion of this protection to hilly lowland forests in Kalimantan 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 closed 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, Indraneil Das, Robert Stuebing, Maklarin Lakim, Paul Yambun 2004. Pedostibes rugosus. The IUCN Red List of Threatened Species 2004: e.T54864A11217097. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T54864A11217097.en