Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Bufonidae

Scientific Name: Ansonia guibei
Species Authority: Inger, 1966

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii)+2ab(iii) ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): Robert Inger, Indraneil Das, Robert Stuebing, Maklarin Lakim, Paul Yambun
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson and Neil Cox)
Listed as Endangered, in view of its extent of occurrence of less than 5,000 km2 and area of occupancy of less than 500 km2, its distribution is severely fragmented, and a continuing decline in the extent and quality of its habitat.

Geographic Range [top]

Range Description: This species is endemic to a portion of montane north-western Sabah (northern Borneo). A large subpopulation exists at one corner of Kinabalu National Park between 1,600 and 2,000m asl. A small population has also been found on Mount Trus Madi at 1,300m asl. Attempts to locate the species on Gunung Mulu in Sarawak have not been successful. It has not been found at other montane sites south of Trus Madi.
Countries occurrence:
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: It is sometimes locally very abundant, especially along streams.
Current Population Trend: Decreasing
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: Adults disperse widely over the floor of montane and submontane forests. It breeds in small, clear, rocky-bottomed streams and larvae live in torrents, clinging to rocks and feeding on lithophytes. It appears to be unable to adapt to modified habitats.
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): As Trus Madi is being actively logged, it is likely that the population there will be diminished, if not driven to extinction. Destruction of the forest at Trus Madi will probably lead to the siltation of streams in which the larvae develop. If the species occurs at other montane sites, these are likely to remain as insular isolates because of the extensive deforestation taking place at lower elevations.

Conservation Actions [top]

Conservation Actions: The species occurs in Kinabalu National Park, which is well protected. However, the area where this species is particularly abundant is increasingly subject to the impact of tourist activities. There is a particular need to expand the existing protected area network (especially above 1,200m asl) south of Kinabalu National Park.

Classifications [top]

1. Forest -> 1.9. Forest - Subtropical/Tropical Moist Montane
suitability: Suitable  
5. Wetlands (inland) -> 5.1. Wetlands (inland) - Permanent Rivers/Streams/Creeks (includes waterfalls)
suitability: Suitable  
1. Land/water protection -> 1.1. Site/area protection
2. Land/water management -> 2.1. Site/area management

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Conservation sites identified:Yes, over entire range
  Occur in at least one PA:Yes
In-Place Species Management
In-Place Education
1. Residential & commercial development -> 1.3. Tourism & recreation areas
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

5. Biological resource use -> 5.3. Logging & wood harvesting -> 5.3.5. Motivation Unknown/Unrecorded
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

6. Human intrusions & disturbance -> 6.1. Recreational activities
♦ timing: Ongoing    
→ Stresses
  • 2. Species Stresses -> 2.2. Species disturbance

9. Pollution -> 9.3. Agricultural & forestry effluents -> 9.3.2. Soil erosion, sedimentation
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.6. Actions
3. Monitoring -> 3.1. Population trends

Bibliography [top]

Inger, R.F. 1966. The systematics and zoogeography of the Amphibia of Borneo. Fieldiana: Zoology: 1-402.

Inger, R.F. and Stuebing, R.B. 1997. A Field Guide to the Frogs of Borneo. Borneo Natural History Publishers, Kota Kinabalu, Malaysia.

IUCN. 2004. 2004 IUCN Red List of Threatened Species. Downloaded on 23 November 2004.

Malkmus, R. 1994. Five frog species at Mesilau Cave (Mt. Kinabalu, northern Borneo). Lacerta: 86-90.

Malkmus, R., and Kosuch, J. 2000. Beschreibung einer neuen Ansonia-Larve (Ansonia guibei) von Borneo. Salamandra: 121-124.

Malkmus, R., Manthey, U., Vogel, G., Hoffmann, P. and Kosuch, J. 2002. Amphibians and reptiles of Mount Kinabalu (North Borneo). A.R.G. Gantner Verlag K.G., Ruggell, Liechtenstein.

Citation: Robert Inger, Indraneil Das, Robert Stuebing, Maklarin Lakim, Paul Yambun. 2004. Ansonia guibei. The IUCN Red List of Threatened Species 2004: e.T54468A11150567. . Downloaded on 10 October 2015.
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