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Platymantis guentheri 

Scope:Global
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_onStatus_en_offStatus_cr_offStatus_ew_offStatus_ex_off

Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Ceratobatrachidae

Scientific Name: Platymantis guentheri
Species Authority: (Boulenger, 1882)
Synonym(s):
Cornufer ingeri Brown & Alcala, 1963

Assessment Information [top]

Red List Category & Criteria: Vulnerable B1ab(iii) ver 3.1
Year Published: 2016
Date Assessed: 2004-04-30
Annotations:
Needs updating
Assessor(s): Diesmos, A.C., Alcala, A., Brown, R., Afuang, L.E., Gee, G., Hampson, K., Diesmos, M., Mallari, A., Ong, P., Ubaldo, D. & Gutierrez, B.
Reviewer(s): Stuart, S.N., Chanson, J.S. & Cox, N.A.
Justification:
Listed as Vulnerable because its Extent of Occurrence is less than 20,000 km2, its distribution is severely fragmented, and there is continuing decline in the extent and quality of its habitat on Bohol, Samar, Leyte, Biliran, Maripipi, Dinagat and Mindanao in the Philippines.

Geographic Range [top]

Range Description:This species occurs in the rainforests of Bohol, Leyte, Biliran, Maripipi, Dinagat, Panglao, and Mindanao Islands in the Philippines, from sea level to 700 m asl. It probably occurs a little more widely than current records suggest, especially in areas between known sites.
Countries occurrence:
Native:
Philippines
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:It is common to very common in humid forest.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:It inhabits arboreal microhabitats in lower montane and lowland forests; it also survives in disturbed habitats adjacent to forested areas. It breeds by direct development and is believed to deposit its eggs in leaf axils, epiphytes, and aerial ferns.
Systems:Terrestrial

Threats [top]

Major Threat(s): The major threat is the loss of habitat due to shifting agriculture and the logging of lowland rainforest.

Conservation Actions [top]

Conservation Actions: The range of this species includes a few protected areas, including Mount Malindang National Park and Mount Apo Natural Park. The designation of the remaining rainforests on the islands of Mindanao, Leyte, Bohol, and Dinagat as protected areas is needed.

Classifications [top]

1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
suitability: Suitable  
1. Forest -> 1.9. Forest - Subtropical/Tropical Moist Montane
suitability: Suitable  
14. Artificial/Terrestrial -> 14.3. Artificial/Terrestrial - Plantations
suitability: Marginal  
14. Artificial/Terrestrial -> 14.4. Artificial/Terrestrial - Rural Gardens
suitability: Marginal  
14. Artificial/Terrestrial -> 14.6. Artificial/Terrestrial - Subtropical/Tropical Heavily Degraded Former Forest
suitability: Marginal  
1. Land/water protection -> 1.1. Site/area protection
2. Land/water management -> 2.1. Site/area management
2. Land/water management -> 2.3. Habitat & natural process restoration

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 -> 1.1. Housing & urban areas
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

1. Residential & commercial development -> 1.2. Commercial & industrial areas
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> 2.1.1. Shifting agriculture
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> 2.1.2. Small-holder farming
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> 2.1.3. Agro-industry farming
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

2. Agriculture & aquaculture -> 2.3. Livestock farming & ranching -> 2.3.3. Agro-industry grazing, ranching or farming
♦ 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

1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.3. Life history & ecology
1. Research -> 1.5. Threats
1. Research -> 1.6. Actions
3. Monitoring -> 3.1. Population trends

Bibliography [top]

Alcala, A.C. and Brown, W.C. 1985. Philippine Amphibians: An Illustrated Field Guide. Bookmark Press, Makati City, Philippines.

Alcala, A.C. and Brown, W.C. 1995. Discovery of the frog Cornufer guentheri on Negros Islands, Philippines, with observations on its life history. Herpetologica: 182-184.

Alcala, A.C. and Brown, W.C. 1999. Philippine frogs of the genus Platymantis (Amphibia: Ranidae). Philippine Journal of Science: 281-287.

Brown, W.C., Alcala, A.C., Diesmos, A.C. and Alcala, E.L. 1997. Species of the guentheri group of Platymantis with descriptions of four new species. Proceedings of the California Academy of Sciences: 1-20.

Brown, W.C. and Alcala, A.C. 1963. A new frog of the genus Cornufer (Ranidae) with notes on other amphibians known from Bohol Island, Philippines. Copeia: 672-675.

IUCN. 2016. The IUCN Red List of Threatened Species. Version 2016-1. Available at: www.iucnredlist.org. (Accessed: 30 June 2016).


Citation: Diesmos, A.C., Alcala, A., Brown, R., Afuang, L.E., Gee, G., Hampson, K., Diesmos, M., Mallari, A., Ong, P., Ubaldo, D. & Gutierrez, B. 2016. Platymantis guentheri. The IUCN Red List of Threatened Species 2016: e.T58460A86248230. . Downloaded on 30 June 2016.
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