| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
1500-7000 |
poor |
Estimated |
1999 |
| Population trend |
Decreasing |
poor |
|
- |
| Number of subpopulations |
2-100 |
- |
- |
- |
| Largest subpopulation |
1001-10000 |
- |
- |
- |
| Generation length (yrs) |
4.4 |
- |
- |
- |
|
Population justification: The population is estimated to number 2,500-9,999 individuals based on an assessment of known records, descriptions of abundance and range size. This is consistent with recorded population density estimates for congeners or close relatives with a similar body size, and the fact that only a proportion of the estimated Extent of Occurrence is likely to be occupied. This estimate is equivalent to 1,667-6,666 mature individuals, rounded here to 1,500-7,000 mature individuals. |
|
Trend justification: Forest loss in the Philippines has been rapid and comprehensive. Remaining tracts of lowland forest with clear streams suitable for this species are under severe pressure and as a result it is suspected to be declining rapidly. |
| Country/Territory |
IBA Name |
IBA link |
| Philippines |
Agusan Marsh Wildlife Sanctuary |
 |
| Philippines |
Anonang-Lobi Range |
|
| Philippines |
Basilan Natural Biotic Area |
|
| Philippines |
Bislig |
|
| Philippines |
Liguasan marsh |
|
| Philippines |
Mount Apo Natural Park |
|
| Philippines |
Mount Dapiak-Mount Paraya |
|
| Philippines |
Mount Diwata Range |
|
| Philippines |
Mount Hamiguitan Range Wildlife Sanctuary |
|
| Philippines |
Mount Hilong-hilong |
|
| Philippines |
Mount Kaluayan - Mount Kinabalian Complex |
|
| Philippines |
Mount Kambinlio and Mount Redondo |
|
| Philippines |
Mount Kampalili-Puting Bato |
|
| Philippines |
Mount Latian complex |
|
| Philippines |
Mount Nacolod |
|
| Philippines |
Mount Sugarloaf |
|
| Philippines |
Pasonanca Natural Park |
|
| Philippines |
Rajah Sikatuna Protected Landscape |
|
| Philippines |
Siargao Island Protected Landscape and Seascape |
|
| Threat (level 1) |
Threat (level 2) |
Impact and Stresses |
| Agriculture & Aquaculture |
Annual & perennial non-timber crops / Agro-industry farming |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Rapid Declines |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Agriculture & Aquaculture |
Annual & perennial non-timber crops / Small-holder farming |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Agriculture & Aquaculture |
Wood & pulp plantations / Agro-industry plantations |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Energy production & mining |
Mining & quarrying |
Timing |
Scope |
Severity |
Impact |
| Future |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 3 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Fishing & harvesting aquatic resources / Unintentional effects: (large scale) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Rapid Declines |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Fishing & harvesting aquatic resources / Unintentional effects: (subsistence/small scale) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Natural system modifications |
Fire & fire suppression / Trend Unknown/Unrecorded |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Pollution |
Agricultural & forestry effluents / Herbicides and pesticides |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Pollution |
Agricultural & forestry effluents / Soil erosion, sedimentation |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
This information is based upon, and updates, the information published in BirdLife International (2000)
Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004)
Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.
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