This species occurs on Luzon, Leyte, Samar, Mindanao, Bohol, and Siquijor, in the Philippines where it occurs between 0–2,000 m asl (A. Diesmos pers. comm. March 2018). It is expected to occur more widely than currently mapped (A. Diesmos pers. comm. March 2018).
Habitat and Ecology
This species inhabits arboreal microhabitats in lower montane and lowland forests. It has also been recorded from some disturbed areas adjacent to forests. It lays its eggs on leaves, and is a direct developer. It will tolerate some habitat disturbance, but will not tolerate the removal of forest cover (A. Diesmos pers. comm. March 2018).
It is common to very common in forested areas, even in some disturbed areas adjacent to forests. It is one of the most common forest species of Philippine frog and it inhabits a considerably wide geographic and elevational distribution. Its population is considered to be stable.
The major threat is the destruction and conversion of both lowland and montane rainforest habitat due to small-scale agricultural activities, large-scale oil palm plantations, wood collection for charcoal production, and expanding human settlements.
Its range includes several protected areas.
Taxonomic studies are necessary to determine whether this is a complex of more than one species. More information is needed on this species' distribution, population status and trends.
Red List Status
Least Concern (LC)
Listed as Least Concern in view of its wide distribution, tolerance of a degree of habitat modification, and presumed large population.
It is suspected that Philautus surdus is a complex of species and further taxonomic work is required to verify this (A. Diesmos pers. comm. March 2018).
IUCN SSC Amphibian Specialist Group 2018. Philautus surdus. The IUCN Red List of Threatened Species 2018: e.T58921A114915875. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T58921A114915875.en .Downloaded on 20 January 2019