As it is currently recognized, this species has a relatively broad distribution in eastern Papua New Guinea and the D'Entecasteaux Islands (Goodenough Island, Fergusson Island and Normanby Island). It occurs at 100-1,600m asl.
Habitat and Ecology
It lives in and close to streams in rainforest. It presumably lays large eggs in torrential streams, and the tadpoles have large suckers. It has only been found in mature forest.
It is common where it has been found.
No threats are known, since it lives in remote areas.
Its distribution, habitat requirements and abundance need to be properly documented, as well as the taxonomic status of different populations. Given declines of torrent-dwelling hylids in Australia, monitoring programmes should be initiated. It is not known from any protected area.
Red List Status
Least Concern (LC)
Listed as Least Concern since, although its currently known Extent of Occurrence is less than 20,000 km2, it occurs in an area of extensive, suitable habitat which appears not to be under significant threat, it has a presumed large population, and it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
This species probably consists of more than one taxon (S. Richards pers. comm.). Recording of the call at the type locality will be essential to resolving this species Group (R. Zweifel pers. comm.).
Stephen Richards, Richard Zweifel 2004. Nyctimystes cheesmani. The IUCN Red List of Threatened Species 2004: e.T55767A11362503. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T55767A11362503.en .Downloaded on 16 November 2018