This species has been recorded from numerous localities in northern Borneo, below 250m asl. It is likely to occur more widely than current records suggest.
Habitat and Ecology
It lives in primary or secondary lowland rainforests, in flat and hilly terrain. Males call singly at breeding sites, which are water-containing holes in the trunks of very large trees.
It is a common species in suitable habitat.
The major threat to the species' habitat is the rapid pace of clear-cutting of the forest.
It has been reported from many protected areas including Kinabalu, Tawau Hills, Lanjak Entimau and Gunung Mulu National Parks.
Red List Status
Near Threatened (NT)
Listed as Near Threatened since although this species is still relatively widely distributed, it depends on areas of lowland forest habitat, and so its Extent of Occurrence is probably not much greater than 20,000 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. Rhacophorus harrissoni. The IUCN Red List of Threatened Species 2004: e.T58997A11857603. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T58997A11857603.en .Downloaded on 23 January 2019