This species is known only from Tagula (Sudest) and Rossel Islands, in the Louisiade Archipelago, Papua New Guinea at 150-350m asl. However the populations on Rossel are most likely a separate species hence this species is probably restricted to Tagula.
Habitat and Ecology
It is common along small (approximately 1-2m wide) tributary streams of large, forested lowland streams. It apparently largely avoids the larger streams. If it is similar to other members of the genus, it is a larval developer in streams. There is no information on its adaptability to degraded habitats.
It is a common species in suitable habitat.
None are known. The habitat on Tagula (Sudest) and Rossel remains in reasonable condition. The forest on Tagula Island was damaged for logging 100 years ago, but has since recovered. There are no immediate plans for logging.
Its distribution and abundance need to be properly documented. The taxonomic status of the populations on Rossel Island needs to clarified. 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 in view of its abundance within its restricted distribution, its presumed large population, and because its habitat is unlikely to be declining fast enough to qualify for listing in a more threatened category.
The Rossel Island populations of this species are most likely a separate species (F. Kraus pers. comm., 2005).
Stephen Richards, Allen Allison, Fred Kraus 2006. Nyctimystes perimetri. The IUCN Red List of Threatened Species 2006: e.T55781A11354784. http://dx.doi.org/10.2305/IUCN.UK.2006.RLTS.T55781A11354784.en .Downloaded on 15 November 2018