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 |
---|---|---|
- | - | B1ab(ii,iii,iv)+2ab(ii,iii,iv) |
Year | Category | Criteria |
---|---|---|
2023 | Vulnerable | B1ab(ii,iii,iv)+2ab(ii,iii,iv) |
2016 | Vulnerable | C2a(ii) |
2012 | Vulnerable | C2a(ii) |
2008 | Vulnerable | C2a(ii) |
2004 | Vulnerable | |
2000 | Vulnerable | |
1996 | Vulnerable | |
1994 | Vulnerable | |
1988 | Threatened |
Migratory status | not a migrant | Forest dependency | medium |
Land-mass type | Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 2,900 km2 | medium |
Area of Occupancy (breeding/resident) | 1,800 km2 | |
Number of locations | 6-20 | - |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | 2500-9999 mature individuals | poor | suspected | 2023 |
Population trend | decreasing | poor | suspected | 2017-2029 |
Rate of change over the past 10 years/3 generations (longer of the two periods) | 15-25% | - | - | - |
Rate of change over the future 10 years/3 generations (longer of the two periods) | 15-25% | - | - | - |
Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 15-25% | - | - | - |
Generation length | 4.04 years | - | - | - |
Number of subpopulations | 1 | - | - | - |
Percentage of mature individuals in largest subpopulation | 100% | - | - | - |
Population justification: The population size of this species has not been formally estimated. It is described as 'scarce' by Lambert (1994) and 'uncommon' by Eaton et al. (2021) but is an elusive species that is easily overlooked (Bashari 2011, Mittermeier et al. 2013). Nonetheless, with only 1,200 km2 of forest within its range (per Global Forest Watch 2023), and suggestion that it is uncommon, it is possible that its population size is relatively small. Precautionarily, the population size is therefore placed in the bracket of 2,500-10,000 mature individuals, but this requires confirmation.
Trend justification: This species is believed to be strictly dependent on lowland forest (Eaton et al. 2021). In the three generations (c.12 years; Bird et al. 2020) to 2022, forest cover in this species' mapped range reduced by 15% (Global Forest Watch 2023, based on data from Hansen et al. [2013] and methods disclosed therein). Although it is at least somewhat tolerant of degradation, most habitat losses on Obi have amounted to total clearance to make way for mines and large-scale plantations. As a frugivore, that appears to be at least partially nomadic, it may depend on a network of feeding sites that vary spatially and temporally, making it especially vulnerable to habitat losses. Moreover, as a large-bodied species, it may be subject to some hunting pressure, although this species is elusive and other large-bodied species (e.g. other pigeons) on Obi are relatively common; hence hunting is considered only a minor threat. Overall the species is suspected to have declined by 15-25% over the past three generations, and the same rate is precautionarily suspected to occur in the future, with no mitigation of threats apparent and none of Obi's lowland forests protected (UNEP-WCMC and IUCN 2023).
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Indonesia | extant | native | yes |
Country/Territory | IBA Name |
---|---|
Indonesia | Gunung Batu Putih |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Forest | Subtropical/Tropical Moist Lowland | major | resident |
Shrubland | Subtropical/Tropical Moist | suitable | resident |
Altitude | 0 - 550 m | Occasional altitudinal limits |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Agriculture & aquaculture | Annual & perennial non-timber crops - Shifting agriculture | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
|||||||||
Biological resource use | Hunting & trapping terrestrial animals - Intentional use (species is the target) | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
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Biological resource use | Logging & wood harvesting - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
|||||||||
Energy production & mining | Mining & quarrying | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
Purpose | Scale |
---|---|
Food - animal | subsistence |
Recommended citation
BirdLife International (2024) Species factsheet: Carunculated Fruit-dove Ptilinopus granulifrons. Downloaded from
https://datazone.birdlife.org/species/factsheet/carunculated-fruit-dove-ptilinopus-granulifrons on 22/11/2024.
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 22/11/2024.