Data Zone
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | A2cd+3cd+4cd |
| Year | Category | Criteria |
|---|---|---|
| 2022 | Vulnerable | A2cd+3cd+4cd |
| 2016 | Vulnerable | A2cd+3cd+4cd |
| 2012 | Vulnerable | A2cd+3cd+4cd |
| 2008 | Vulnerable | A2c; A3c; A4c |
| 2004 | Vulnerable | |
| 2000 | Vulnerable | |
| 1994 | Lower Risk/Near Threatened | |
| 1988 | Threatened |
| Migratory status | not a migrant | Forest dependency | high |
| Land-mass type |
continent shelf island |
Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 3,650,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 10000-19999 mature individuals | poor | suspected | 2000 |
| Population trend | decreasing | poor | inferred | 2010-2025 |
| Rate of change over the past 10 years/3 generations (longer of the two periods) | 30-49% | - | - | - |
| Rate of change over the future 10 years/3 generations (longer of the two periods) | 30-49% | - | - | - |
| Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 30-49% | - | - | - |
| Generation length | 5.1 years | - | - | - |
| Number of subpopulations | 2-100 | - | - | - |
| Percentage of mature individuals in largest subpopulation | 1-89% | - | - | - |
Population justification: The population size of this species has not formally been estimated, however it appears to be generally rare and confined to primary forest and is preliminarily suspected to fall into the band of 10,000-19,999 mature individuals.
Trend justification: This lowland forest specialist is inferred to be declining rapidly because of pervasive forest loss within its range which largely has consisted of total clearance or conversion to oil palm plantations, neither of which this species persists in. Forest cover loss in its elevational and geographic range in the three generations (15.3 years; Bird et al. 2020) to 2021 has been approximately 25% (Global Forest Watch [2022] using data from Hansen et al. [2013] and methods disclosed therein). This rate is suspected to continue into the future with little sign of abatement. As a forest dependent species, this is the absolute minimum suspected population reduction. In addition, degradation and fragmentation is suspected to have driven further reduction (the species is conspicuously absent from smaller forest blocks [eBird 2022]), though this is unquantified. Hunting remains an additive threat at least locally, with one study (Symes et al. 2018) even postulating these impacts may be reducing the population size by up to 17% over a shorter three-generation time period of 12.6 (vs 15.3) years. Accounting for uncertainties, the species is suspected to have suffered a population reduction of 30-49% over the past three generations and this rate is suspected to continue into the future.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Brunei | extant | native | yes | |||
| Indonesia | extant | native | yes | |||
| Malaysia | extant | native | yes | |||
| Myanmar | extant | native | yes | |||
| Thailand | extant | native | yes |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Altitude | 0 - 600 m | Occasional altitudinal limits | (max) 1300 m |
| 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: 7 | ||||||
|
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| Agriculture & aquaculture | Annual & perennial non-timber crops - Shifting agriculture | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Rapid Declines | Medium Impact: 7 | ||||||
|
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| Biological resource use | Hunting & trapping terrestrial animals - Intentional use (species is the target) | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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| Biological resource use | Logging & wood harvesting - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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| Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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| Natural system modifications | Fire & fire suppression - Trend Unknown/Unrecorded | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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| Purpose | Scale |
|---|---|
| Food - human | subsistence, national |
Recommended citation
BirdLife International (2024) Species factsheet: Large Green-pigeon Treron capellei. Downloaded from
https://datazone.birdlife.org/species/factsheet/large-green-pigeon-treron-capellei on 23/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 23/12/2024.