IUCN Red List history
| Year |
Category |
| 2012 |
Least Concern |
| 2011 |
Least Concern |
| 2009 |
Least Concern |
| 2008 |
Least Concern |
| 2004 |
Least Concern |
| 2000 |
Lower Risk/Least Concern |
| 1994 |
Lower Risk/Least Concern |
| 1988 |
Lower Risk/Least Concern |
Species attributes
| Migratory status |
full migrant |
Forest dependency |
Does not normally occur in forest |
| Land mass type |
|
Average mass |
- |
Distribution
| |
Estimate |
Data quality |
| Extent of Occurrence breeding/resident (km2) |
4,360,000 |
medium |
| Number of locations |
|
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
670-17000 |
poor |
Estimated |
2009 |
| Population trend |
Decreasing |
|
|
- |
| Number of subpopulations |
|
- |
- |
- |
| Largest subpopulation |
|
- |
- |
- |
| Generation length (yrs) |
3.7 |
- |
- |
- |
|
Population justification: The population is estimated to number 1,000-25,000 individuals, roughly equating to 670-17,000 mature individuals. |
|
Trend justification: The population is thought to be in decline (Wetlands International 2006) owing to continued habitat loss and degradation.
|
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| Algeria |
Vagrant |
No |
|
|
|
| Angola |
Native |
No |
|
|
|
| Botswana |
Native |
No |
|
|
|
| Cameroon |
Native |
No |
|
|
|
| Côte d'Ivoire |
Native |
No |
|
|
|
| Comoros |
Vagrant |
No |
|
|
|
| Congo |
Vagrant |
No |
|
|
|
| Congo, The Democratic Republic of the |
Native |
No |
|
|
|
| Gabon |
Native |
No |
|
|
|
| Ghana |
Native |
No |
|
|
|
| Italy |
Vagrant |
No |
|
|
|
| Kenya |
Native |
No |
|
|
|
| Libya |
Vagrant |
No |
|
|
|
| Malawi |
Native |
No |
|
|
|
| Morocco |
Vagrant |
No |
|
|
|
| Mozambique |
Native |
No |
|
|
|
| Namibia |
Native |
No |
|
|
|
| Nigeria |
Native |
No |
|
|
|
| Rwanda |
Vagrant |
No |
|
|
|
| Seychelles |
Vagrant |
No |
|
|
|
| South Africa |
Native |
No |
|
|
|
| Tanzania |
Native |
No |
|
|
|
| Uganda |
Native |
No |
|
|
|
| Zambia |
Native |
No |
|
|
|
| Zimbabwe |
Native |
No |
|
|
|
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| Artificial/Aquatic & Marine |
Canals and Drainage Channels, Ditches |
suitable |
breeding |
| Artificial/Aquatic & Marine |
Irrigated Land (includes irrigation channels) |
suitable |
breeding |
| Grassland |
Subtropical/Tropical Seasonally Wet/Flooded |
major |
breeding |
| Grassland |
Subtropical/Tropical Seasonally Wet/Flooded |
major |
non-breeding |
| Savanna |
Dry |
suitable |
non-breeding |
| Wetlands (inland) |
Permanent Rivers/Streams/Creeks (includes waterfalls) |
suitable |
non-breeding |
| Wetlands (inland) |
Seasonal/Intermittent Freshwater Lakes (over 8ha) |
suitable |
breeding |
| Wetlands (inland) |
Seasonal/Intermittent Freshwater Marshes/Pools (under 8ha) |
suitable |
non-breeding |
| Wetlands (inland) |
Seasonal/Intermittent Freshwater Marshes/Pools (under 8ha) |
major |
breeding |
| Wetlands (inland) |
Shrub Dominated Wetlands |
suitable |
non-breeding |
|
Altitude
|
0 - 0 m
|
Occasional altitudinal limits
|
|
Threats & impact
| Threat (level 1) |
Threat (level 2) |
Impact and Stresses |
| Agriculture & Aquaculture |
Annual & perennial non-timber crops / Scale Unknown/Unrecorded |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
No decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Agriculture & Aquaculture |
Annual & perennial non-timber crops / Scale Unknown/Unrecorded |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
No decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Natural system modifications |
Dams & water management/use / Abstraction of surface water (unknown use) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
No decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Natural system modifications |
Dams & water management/use / Dams (size unknown) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
No decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
Recommended citation
BirdLife International (2013) Species factsheet: Aenigmatolimnas marginalis. Downloaded from
http://www.birdlife.org on 21/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 21/05/2013.
This information is based upon, and updates, the information published in BirdLife International (2000)
Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004)
Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.
email a friend
printable version
close