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 |
---|---|---|
- | - | A2cde+3cde+4cde |
Year | Category | Criteria |
---|---|---|
2021 | Vulnerable | A2cde+3cde+4cde |
2016 | Vulnerable | A3cd |
2012 | Vulnerable | A3cd |
2008 | Vulnerable | A3c,d |
2004 | Vulnerable | |
2000 | Vulnerable | |
1996 | Vulnerable | |
1994 | Vulnerable | |
1988 | Threatened |
Migratory status | not a migrant | Forest dependency | High |
Land mass type |
Land-mass type - shelf island |
Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence breeding/resident (km2) | 11,500 | medium |
Number of locations | 11-100 | - |
Severely Fragmented | - |
Value | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
No. of mature individuals | 9487-32687 | medium | estimated | 2007 |
Population trend | Decreasing | good | inferred | - |
Decline (3 years/1 generation past) | - | - | - | |
Decline (5 years/1 generation past) | - | - | - | |
Decline (10 years/1 generation past) | - | - | - | |
Decline (10 years/3 generation future) | 21-31 | - | - | - |
Decline (10 years/3 generation past and future) | 21-31 | - | - | - |
Number of subpopulations | - | - | - | |
Percentage in largest subpopulation | - | - | - | |
Generation length (yrs) | 4.9 | - | - | - |
Population justification: A total population estimate of 21,124 (with a 95% confidence interval of 9,487-32,687) mature individuals was calculated from a tentative estimate of the species's density at 5.7 (95% CI: 2.6-8.8) mature adults per km2 from transect surveys in 1999 and an estimate of 3,706 km2 of remaining habitat (Seddon and Tobias 2007). The 95% confidence intervals are taken as the upper and lower range estimates for the population.
Trend justification: The population is inferred to be declining in line with continuing habitat loss (Seddon and Tobias 2007; Global Forest Watch 2021). Over the past three generations, this species experienced a loss of 32% forest cover from its range (Global Forest Watch 2021). This species is also threatened by predation from invasive predators and trappers. Hence the overall past rate of decline is suspected to fall in the band of 25-35%. Between 2017-2020 this species's range lost 6.6% forest cover (Global Forest Watch 2021). Projected forwards over 3 generations, this equates to a loss of 23%. Assuming that forest loss continues at a similar rate, and the species remains threatened by invasive predators and trappers, the future rate of decline is suspected to fall in the band 21-31%.
Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
---|---|---|---|---|---|---|
Madagascar | N | Extant | Yes |
Country/Territory | IBA Name |
---|---|
Madagascar | Mikea |
Madagascar | PK32-Ranobe NPA |
Madagascar | Velondriake MPA |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | major | resident |
Forest | Subtropical/Tropical Dry | major | resident |
Shrubland | Subtropical/Tropical Dry | major | resident |
Altitude | 0 - 80 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 | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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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 | ||||||
|
|||||||||
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%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Climate change & severe weather | Other impacts | Timing | Scope | Severity | Impact | ||||
Future | Whole (>90%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Canis familiaris | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
|||||||||
Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Named species | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Unknown | Unknown | ||||||
|
Purpose | Primary form used | Life stage used | Source | Scale | Level | Timing |
---|---|---|---|---|---|---|
Food - human | - | - | Non-trivial | Recent | ||
Pets/display animals, horticulture | - | - | International | Non-trivial | Recent |
Recommended citation
BirdLife International (2023) Species factsheet: Uratelornis chimaera. Downloaded from
http://www.birdlife.org on 21/03/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 21/03/2023.