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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2016 | Extinct | |
| 2012 | Extinct | |
| 2010 | Extinct | |
| 2009 | Critically Endangered | D1 |
| 2008 | Critically Endangered | |
| 2004 | Critically Endangered | |
| 2000 | Critically Endangered | |
| 1996 | Critically Endangered | |
| 1994 | Critically Endangered | |
| 1988 | Threatened |
| Migratory status | not a migrant | Forest dependency | Does not normally occur in forest |
| Land mass type |
Land-mass type - shelf island |
Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Number of locations | - | |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 0 | |||
| Population trend | not applicable | - | ||
| Decline (3 years/1 generation past) | - | - | - | |
| Decline (5 years/1 generation past) | - | - | - | |
| Decline (10 years/1 generation past) | - | - | - | |
| Decline (10 years/3 generation future) | - | - | - | |
| Decline (10 years/3 generation past and future) | - | - | - | |
| Number of subpopulations | - | - | - | |
| Percentage in largest subpopulation | - | - | - | |
| Generation length (yrs) | 5.4 | - | - | - |
Population justification: None are believed to remain in existence.
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Madagascar | N | Extinct | Yes |
| Country/Territory | IBA Name |
|---|---|
| Madagascar | Lake Alaotra NPA |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Wetlands (inland) | Permanent Freshwater Lakes (over 8ha) | major | resident |
| Wetlands (inland) | Permanent Freshwater Marshes/Pools (under 8ha) | major | resident |
| Altitude | 750 - 750 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Agriculture & aquaculture | Annual & perennial non-timber crops - Scale Unknown/Unrecorded | Timing | Scope | Severity | Impact | ||||
| Past, Unlikely to Return | Whole (>90%) | Unknown | Past Impact | ||||||
|
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| Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
| Past, Unlikely to Return | Majority (50-90%) | Slow, Significant Declines | Past Impact | ||||||
|
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| Biological resource use | Fishing & harvesting aquatic resources - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
| Past, Unlikely to Return | Whole (>90%) | Slow, Significant Declines | Past Impact | ||||||
|
|||||||||
| Biological resource use | Hunting & trapping terrestrial animals - Intentional use (species is the target) | Timing | Scope | Severity | Impact | ||||
| Past, Unlikely to Return | Whole (>90%) | Slow, Significant Declines | Past Impact | ||||||
|
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| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Channa striata | Timing | Scope | Severity | Impact | ||||
| Past, Unlikely to Return | Whole (>90%) | Very Rapid Declines | Past Impact | ||||||
|
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| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Eichhornia crassipes | Timing | Scope | Severity | Impact | ||||
| Past, Unlikely to Return | Whole (>90%) | Slow, Significant Declines | Past Impact | ||||||
|
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| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Micropterus salmoides | Timing | Scope | Severity | Impact | ||||
| Past, Unlikely to Return | Whole (>90%) | Rapid Declines | Past Impact | ||||||
|
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| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Named species | Timing | Scope | Severity | Impact | ||||
| Past, Unlikely to Return | Whole (>90%) | Slow, Significant Declines | Past Impact | ||||||
|
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| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Unspecified species | Timing | Scope | Severity | Impact | ||||
| Past, Unlikely to Return | Whole (>90%) | Slow, Significant Declines | Past Impact | ||||||
|
|||||||||
| Invasive and other problematic species, genes & diseases | Problematic native species/diseases | Timing | Scope | Severity | Impact | ||||
| Past, Unlikely to Return | Whole (>90%) | Rapid Declines | Past Impact | ||||||
|
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| Pollution | Agricultural & forestry effluents - Soil erosion, sedimentation | Timing | Scope | Severity | Impact | ||||
| Past, Unlikely to Return | Whole (>90%) | Slow, Significant Declines | Past Impact | ||||||
|
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| Pollution | Agricultural & forestry effluents - Type Unknown/Unrecorded | Timing | Scope | Severity | Impact | ||||
| Past, Unlikely to Return | Whole (>90%) | Slow, Significant Declines | Past Impact | ||||||
|
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Recommended citation
BirdLife International (2022) Species factsheet: Tachybaptus rufolavatus. Downloaded from
http://www.birdlife.org on 09/08/2022.
Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 09/08/2022.
