Ansonia platysoma 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Bufonidae

Scientific Name: Ansonia platysoma Inger, 1960
Taxonomic Source(s): Frost, D.R. 2018. Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History, New York, USA Available at:

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2018
Date Assessed: 2018-03-06
Assessor(s): IUCN SSC Amphibian Specialist Group
Reviewer(s): Luedtke, J.
Contributor(s): Das, I., Lakim, M., Yambun, P., Stuebing, R., Inger, R.F. & Pui, Y.
Facilitator/Compiler(s): Neam, K., Hobin, L.
Listed as Least Concern since, although its extent of occurrence (EOO) is 11,363 km2, it occurs in several well-protected and well-managed national parks where suitable habitat remains and the species is not under any significant threat.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This Bornean endemic occurs at a number of sites within Kinabalu National Park and Crocker Range National Park in Sabah (Malaysia); it is also known from Gunung Mulu National Park in Sarawak. The altitudinal range in Kinabalu is 600–1,000 m asl (Malkmus et al. 2002), and its overall altitudinal range is 600–1,600 m asl. Its extent of occurrence (EOO) is 11,363 km2.
Countries occurrence:
Malaysia (Sabah, Sarawak)
Additional data:
Lower elevation limit (metres):600
Upper elevation limit (metres):1600
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is abundant at many sites within its range, including Mahua in Crocker Range and Poring Springs in Kinabalu National Park, Sabah (P. Yambun pers. comm. January 2018). The subpopulations in Sabah are considered to be stable (P. Yambun pers. comm. January 2018). In Sarawak, it is not very abundant (Y.M. Pui pers. comm. March 2018).
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:Adults are found on the floor of montane forests and move to clear, rocky mountain creeks to breed. It appears not to be able to survive in modified habitats. The larvae cling to rocks in torrents in these streams and presumably feed on lithophytes.
Systems:Terrestrial; Freshwater
Movement patterns:Not a Migrant

Use and Trade [top]

Use and Trade: There are no records of this species being utilized.

Threats [top]

Major Threat(s): No threatening activities are currently taking place within this species range. In the 2004 assessment, logging and subsequent siltation were considered to be potential threats; however these activities are not occurring in this species' range. In Sabah, it occurs entirely within two well-protected and well-enforced national parks (P. Yambun pers. comm. January 2018). The subpopulation in Sarawak is within Gunung Mulu National Park, which is well-protected and not threatened at present (Y.M. Pui and I. Das pers. comm. March 2018).

Conservation Actions [top]

Conservation Actions: Conservation Actions
The species is known to be present in the Kinabalu, Crocker Range and Gunung Mulu National Parks, all of which are well-managed. 

Conservation Needed
Continued management and habitat protection of the existing protected areas is necessary for the conservation of this species. 

Research Needed
Additional surveys of potentially suitable sites in Kalimantan are required to establish whether this species occurs there.

Citation: IUCN SSC Amphibian Specialist Group. 2018. Ansonia platysoma. The IUCN Red List of Threatened Species 2018: e.T54480A123691515. . Downloaded on 23 September 2018.
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