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 |
---|---|---|
- | - | - |
Year | Category | Criteria |
---|---|---|
2023 | Least Concern | |
2016 | Near Threatened | B1ab(iii);C1 |
2012 | Near Threatened | B1ab(iii);C1 |
2008 | Near Threatened | B1a+b(iii); C1 |
2004 | Near Threatened | |
2000 | Lower Risk/Near Threatened | |
1994 | Lower Risk/Least Concern | |
1988 | Lower Risk/Least Concern |
Migratory status | not a migrant | Forest dependency | medium |
Land-mass type | Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 14,110 km2 | medium |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | 10000-19999 mature individuals | poor | suspected | 2008 |
Population trend | stable | - | suspected | - |
Generation length | 3.39 years | - | - | - |
Number of subpopulations | 3-70 | - | - | - |
Percentage of mature individuals in largest subpopulation | 1-89% | - | - | - |
Population justification: This species is reportedly common in forest, edge and plantations within its range (Eaton et al. 2021). However, it occupies only a few small islands, with a range not more than 14,110 km2, therefore its population is thought to be moderately small. It is placed in the band 10,000-19,999 mature individuals. This preliminary estimate of poor data quality requires clarification.
Trend justification: Habitat loss is considered the only plausible threat to this species. Remote sensing data indicate minimal (c.2%) forest cover loss in its range during 2012-2022 (Global Forest Watch 2023, based on data from Hansen et al. [2013] and methods disclosed therein). Moreover, the species is reportedly tolerant of habitat degradation, and occurs even in plantations (Haryoko et al. 2020, Eaton et al. 2021). In the absence of evidence for other significant threats, the population is therefore suspected to be stable.
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Indonesia | extant | native | yes |
Country/Territory | IBA Name |
---|---|
Indonesia | Pulau Siberut |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Artificial/Terrestrial | Plantations | marginal | resident |
Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | marginal | resident |
Forest | Subtropical/Tropical Moist Lowland | suitable | resident |
Altitude | 0 - 450 m | Occasional altitudinal limits |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Agriculture & aquaculture | Annual & perennial non-timber crops - Agro-industry farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
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Climate change & severe weather | Habitat shifting & alteration | Timing | Scope | Severity | Impact | ||||
Future | Whole (>90%) | Unknown | Unknown | ||||||
|
|||||||||
Natural system modifications | Fire & fire suppression - Increase in fire frequency/intensity | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
Recommended citation
BirdLife International (2024) Species factsheet: Mentawai Scops-owl Otus mentawi. Downloaded from
https://datazone.birdlife.org/species/factsheet/mentawai-scops-owl-otus-mentawi on 24/12/2024.
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 24/12/2024.