This species is only known from Gunung Api in Gunung Mulu National Park in northern Sarawak, Borneo, Malaysia, between 900–1,300 m asl. It is not likely to occur more widely (I. Das pers. comm. March 2018). Its estimated extent of occurrence (EOO) is 675 km2.
Habitat and Ecology
This species occurs in submontane limestone karst forest. Males were calling from near ground level up to 2 m above the ground. It breeds by direct development.
There is no information on the population status of this species, as it is only known from several specimens. The population is considered to be stable.
This species is only known from Gunung Mulu National Park, which is well protected and not threatened at present (Y.M. Pui and I. Das pers. comm. March 2018).
This species occurs in Gunung Mulu National Park, which is well-protected and a World Heritage Site.
Continued management of Gunung Mulu National Park is necessary for the conservation of this species (Y.M. Pui and I. Das pers. comm. March 2018).
Additional surveys are needed to better understand the population status of this species. There is also a need for taxonomic research for all Philautus species occurring in Malaysian Borneo.
Red List Status
Listed as Least Concern because, although this species' current known distribution is limited – its estimated extent of occurrence (EOO) is 675 km2 – it occurs in a well-protected national park where there are currently no threats.
IUCN SSC Amphibian Specialist Group 2018. Philautus umbra. The IUCN Red List of Threatened Species 2018: e.T58930A123694049. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T58930A123694049.en .Downloaded on 21 January 2019