| Citation |
IUCN SSC Amphibian Specialist Group 2018. Pulchrana mangyanum. The IUCN Red List of Threatened Species 2018: e.T58658A113809860. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T58658A113809860.en. Downloaded on 09 May 2019. |
Description |
Geographic Range
NATIVE
Extant (resident)
Philippines
NUMBER OF LOCATIONS
2-4
UPPER ELEVATION LIMIT
1,200 metres
LOWER ELEVATION LIMIT
0 metres
UPPER DEPTH LIMIT
LOWER DEPTH LIMIT
Geographic Range in detail
ESTIMATED AREA OF OCCUPANCY (AOO) (KM²)
CONTINUING DECLINE IN AREA OF OCCUPANCY (AOO)
EXTREME FLUCTUATIONS IN AREA OF OCCUPANCY (AOO)
ESTIMATED EXTENT OF OCCURRENCE (EOO) (KM²)
8048
CONTINUING DECLINE IN EXTENT OF OCCURRENCE (EOO)
EXTREME FLUCTUATIONS IN EXTENT OF OCCURRENCE (EOO)
CONTINUING DECLINE IN NUMBER OF LOCATIONS
EXTREME FLUCTUATIONS IN THE NUMBER OF LOCATIONS
RANGE DESCRIPTION
This species is known only from the islands of Mindoro and Sibay, from sea level to 1,200 m asl (A. Diesmos pers. comm. March 2018), in the Philippines. Its extent of occurrence (EOO) is 8,048 km2, representing fewer than five threat-defined locations, but it is expected to occur more widely within Mindoro than currently mapped (A. Diesmos pers. comm. March 2018).
Population
CURRENT POPULATION TREND
Decreasing
NUMBER OF MATURE INDIVIDUALS
POPULATION SEVERELY FRAGMENTED
No
CONTINUING DECLINE OF MATURE INDIVIDUALS
Population in detail
EXTREME FLUCTUATIONS
NO. OF SUBPOPULATIONS
CONTINUING DECLINE IN SUBPOPULATIONS
EXTREME FLUCTUATIONS IN SUBPOPULATIONS
ALL INDIVIDUALS IN ONE SUBPOPULATION
NO. OF INDIVIDUALS IN LARGEST SUBPOPULATION
DESCRIPTION
It is common in several localities on Mindoro, especially in riparian forest habitat, and recent surveys within the last couple of years have recorded the species (A. Diesmos pers. comm. March 2018). Due to ongoing decline in the extent and quality of habitat, the population is suspected to be decreasing.
Habitat and Ecology
SYSTEM
Terrestrial, Freshwater (=Inland waters)
HABITAT TYPE
Forest, Wetlands (inland)
GENERATION LENGTH (YEARS)
CONGREGATORY
MOVEMENT PATTERNS
Not a Migrant
CONTINUING DECLINE IN AREA, EXTENT AND/OR QUALITY OF HABITAT
Yes
Habitat and Ecology in detail
HABITAT AND ECOLOGY
This species inhabits undisturbed and disturbed streams and rivers in lower montane and lowland forests. Breeding takes place in streams in forested and disturbed areas, and the larvae develop in quiet side-pools in rivers. It does not tolerate much habitat disturbance (A. Diesmos pers. comm. March 2018).
CLASSIFICATION SCHEME
Habitats Suitability Major importance
1. Forest 1.5. Forest - Subtropical/Tropical Dry Suitable Yes
1.6. Forest - Subtropical/Tropical Moist Lowland Suitable Yes
5. Wetlands (inland) 5.1. Wetlands (inland) - Permanent Rivers/Streams/Creeks (includes waterfalls) Suitable Yes
5.7. Wetlands (inland) - Permanent Freshwater Marshes/Pools (under 8ha) Suitable Yes
5.8. Wetlands (inland) - Seasonal/Intermittent Freshwater Marshes/Pools (under 8ha) Suitable Yes
Threats
Residential & commercial development
Housing & urban areas
Agriculture & aquaculture
Annual & perennial non-timber crops
Wood & pulp plantations
Energy production & mining
Mining & quarrying
Biological resource use
Logging & wood harvesting
Threats in detail
THREATS
The major threat is habitat loss due to shifting, slash-and-burn agriculture and small-scale wood collection by local settlements. Commercial logging took place across the lowlands of Mindoro Island over 50 years ago and has now ceased; however secondary forests are still being cleared, albeit at a smaller scale, for the planting of timber plantations through the Integrated Forest Management Agreement (Philippines Red List Assessment Workshop May 2017).
CLASSIFICATION SCHEME
Threats Timing Stresses Scope Severity Impact score Invasive species Virus
1. Residential & commercial development 1.1. Housing & urban areas Ongoing
1. Ecosystem stresses 1.1. Ecosystem conversion
1.2. Ecosystem degradation
Low Impact: 3
2. Agriculture & aquaculture 2.1. Annual & perennial non-timber crops 2.1.1. Shifting agriculture Ongoing
1. Ecosystem stresses 1.1. Ecosystem conversion
1.2. Ecosystem degradation
Low Impact: 3
2.1.2. Small-holder farming Ongoing
1. Ecosystem stresses 1.1. Ecosystem conversion
1.2. Ecosystem degradation
Low Impact: 3
2.2. Wood & pulp plantations 2.2.1. Small-holder plantations Ongoing
1. Ecosystem stresses 1.1. Ecosystem conversion
1.2. Ecosystem degradation
Low Impact: 3
3. Energy production & mining 3.2. Mining & quarrying Ongoing
1. Ecosystem stresses 1.1. Ecosystem conversion
1.2. Ecosystem degradation
Low Impact: 3
5. Biological resource use 5.3. Logging & wood harvesting 5.3.5. Motivation Unknown/Unrecorded Ongoing
1. Ecosystem stresses 1.2. Ecosystem degradation
Low Impact: 3
Use and Trade
Use and Trade in detail |
