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This species only occurs in the Palawan Island group, in the western Philippines, including Palawan, Culion and Busuanga, but is likely to occur more widely than current records suggest.

It is a very common species.

It inhabits undisturbed and disturbed streams and rivers in lower montane and lowland forests, where it breeds and lays its eggs. The larvae develop in quiet side pools in clean rivers.

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Important threats to this species might include the loss of lowland rainforest due to forest clearance, and pollution of mountain streams and rivers especially due to agricultural effluents.

• 9.3.4 Type Unknown/Unrecorded
• 3.2 Mining & quarrying
• 2.1.2 Small-holder farming
• 2.1.1 Shifting agriculture
• 5.3.5 Motivation Unknown/Unrecorded

The range of this species includes several protected areas. The most important conservation measure is to designate the remaining tracts of intact lowland rainforest on Palawan as protected areas.

• 1.1 Site/area protection
• 2.1 Site/area management
• 2.3 Habitat & natural process restoration

Listed as Near Threatened since although its Extent of Occurrence is less than 20,000 km2 and its habitat is declining, thus making the species close to qualifying for Vulnerable, it probably occurs in more than ten locations, and its range is probably not severely fragmented.

• Alcala, A.C. and Brown, W.C. 1985. Philippine Amphibians: An Illustrated Field Guide. Bookmark Press, Makati City, Philippines.
• Brown, R.M. and Guttman, S.I. Rev.. Systematic evolution in the Rana signata complex of the Philippine and Bornean stream frogs: Huxley's modification of Wallace's Line reconsidered at the Oriental-Australian faunal zone interface. Submtd.:Zoological Journal of the Linnean Society.
• Dubois, A. 1992. Notes sur la clasification des Ranidae (Amphibiens Anoures). Bulletin Mensuel de la Societe Linneenne de Lyon: 305-352.
• Frost, D.R. 1985. Amphibian Species of the World: A Taxonomic and Geographic Reference. Allen Press and the Association of Systematic Collections, Lawrence, Kansas.
• Inger, R.F. 1999. Distributions of amphibians in southern Asia and adjacent islands. In: W.E. Duellman (ed.), Patterns of Distribution of Amphibians: A Global Perspective, pp. 445-482. John Hopkins University Press.