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Platymantis isarog 

Scope: Global
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Ceratobatrachidae

Scientific Name: Platymantis isarog Brown, Brown, Alcala and Frost, 1997
Synonym(s):
Platymantis reticulatus Brown, Brown and Alcala, 1997
Taxonomic Source(s): Frost, D.R. 2017. Amphibian Species of the World: an Online Reference. Version 6.0 (10 March 2017). American Museum of Natural History, New York, USA Available at: http://research.amnh.org/herpetology/amphibia/index.html.

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Annotations:
Needs updating
Assessor(s): Arvin Diesmos, Angel Alcala, Rafe Brown, Leticia Afuang, Genevieve Gee, Katie Hampson, Mae Leonida Diesmos, Aldrin Mallari, Perry Ong, Dondi Ubaldo, Baldwin Gutierrez
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson and Neil Cox)
Justification:
Listed as Vulnerable because it is known from only a single location.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is known only from Mount Isarog (1,200-1,800m asl), on south-eastern Luzon Island, in the Philippines. It might also occur on Mount Malinao, from 650-1,500m asl.
Countries occurrence:
Native:
Philippines
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:It is common in mid- to upper-montane forests on Mount Isarog, and its populations appear to be stable.
Current Population Trend:Stable
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:It inhabits arboreal microhabitats in mossy and montane rainforests, and deposits its eggs on leaves in shrub layer vegetation. It breeds by direct development.
Systems:Terrestrial

Threats [top]

Major Threat(s): It inhabits high-elevation forests in what is presently a generally well-protected locality, and is relatively less threatened by habitat loss due to agriculture and human encroachment. Nonetheless, it remains susceptible to these threats particularly given its very small range.

Conservation Actions [top]

Conservation Actions: The most important conservation measure needed at present is the continued management of Mount Isarog National Park. There is also a need for continued monitoring of the population status of this species.

Classifications [top]

1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
suitability:Suitable  
1. Forest -> 1.9. Forest - Subtropical/Tropical Moist Montane
suitability:Suitable  
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
4. Education & awareness -> 4.3. Awareness & communications

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

11. Climate change & severe weather -> 11.2. Droughts
♦ timing:Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

11. Climate change & severe weather -> 11.3. Temperature extremes
♦ timing:Future    
→ Stresses
  • 2. Species Stresses -> 2.1. Species mortality

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

4. Transportation & service corridors -> 4.2. Utility & service lines
♦ timing:Future    
→ Stresses
  • 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. 1999. Philippine frogs of the genus Platymantis (Amphibia: Ranidae). Philippine Journal of Science: 281-287.

Brown, R.M., Diesmos, A.C. and Alcala, A.C. 2001. The state of Philippine herpetology and the challenges for the next decade. Silliman Journal 42(1): 18-87.

Brown, W.C., Brown, R.M., Alcala, A.C. and Frost, D. 1997. Replacement name for Platymantis reticulatus Brown, Brown, and Alcala, 1997 (Ranidae:Raninae). Herpetological Review: 131.

Brown, W.C., Brown, R.M. and Alcala, A.C. 1997. Species of the hazelae group of Platymantis (Amphibia: Ranidae) from the Philippines, with descriptions of two new species. Proceedings of the California Academy of Sciences: 405-421.

IUCN. 2004. 2004 IUCN Red List of Threatened Species. Available at: www.iucnredlist.org. (Accessed: 23 November 2004).


Citation: Arvin Diesmos, Angel Alcala, Rafe Brown, Leticia Afuang, Genevieve Gee, Katie Hampson, Mae Leonida Diesmos, Aldrin Mallari, Perry Ong, Dondi Ubaldo, Baldwin Gutierrez. 2004. Platymantis isarog. The IUCN Red List of Threatened Species 2004: e.T29591A9502326. . Downloaded on 17 November 2017.
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