IUCN Red List Criteria
| Critically Endangered |
|
| Endangered |
|
| Vulnerable |
A2cd+3cd+4cd |
IUCN Red List history
| Year |
Category |
| 2012 |
Vulnerable |
| 2008 |
Near Threatened |
| 2004 |
Near Threatened |
| 2000 |
Lower Risk/Near Threatened |
| 1994 |
Lower Risk/Near Threatened |
| 1988 |
Lower Risk/Least Concern |
Species attributes
| Migratory status |
not a migrant |
Forest dependency |
High |
| Land mass type |
continent
|
Average mass |
- |
Distribution
| |
Estimate |
Data quality |
| Extent of Occurrence breeding/resident (km2) |
495,000 |
medium |
| Number of locations |
|
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
8000-9000 |
poor |
Estimated |
2007 |
| Population trend |
Decreasing |
medium |
|
- |
| Number of subpopulations |
|
- |
- |
- |
| Largest subpopulation |
|
- |
- |
- |
| Generation length (yrs) |
15.8 |
- |
- |
- |
|
Population justification: Recent calculations put the species's area of suitable habitat at 35,808 km2, and mean population density at 0.35 birds/km2. This gives an estimated population size of 12,533 individuals (H. Rainey in litt. 2007), here rounded to 12,500 individuals. This roughly equates to 8,000-9,000 mature individuals. |
|
Trend justification: Observations on the prevalence of high hunting pressure and habitat loss, and the apparent disappearance of the species from some areas, strongly suggest that it is experiencing a rapid population decline. |
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| Cameroon |
Native |
No |
|
|
|
| Côte d'Ivoire |
Native |
No |
|
|
|
| Ghana |
Native |
No |
|
|
|
| Guinea |
Native |
No |
|
|
|
| Guinea-Bissau |
Native |
No |
|
|
|
| Liberia |
Native |
No |
|
|
|
| Mali |
Native |
No |
|
|
|
| Nigeria |
Native |
No |
|
|
|
| Senegal |
Native |
No |
|
|
|
| Sierra Leone |
Native |
No |
|
|
|
| Togo |
Native |
No |
|
|
|
Important Bird Areas where this species has triggered the IBA criteria
| Country/Territory |
IBA Name |
IBA link |
| Cameroon |
Bakossi mountains |
 |
| Cameroon |
Banyang Mbo Wildlife Sanctuary |
|
| Cameroon |
Korup National Park |
|
| Cameroon |
Mont Nlonako |
|
| Cameroon |
Mount Cameroon and Mokoko-Onge |
|
| Cameroon |
Mount Rata and Rumpi Hills Forest Reserve |
|
| Cameroon |
Yabassi |
|
| Côte d'Ivoire |
Azagny National Park |
|
| Côte d'Ivoire |
Bossematie Forest Reserve |
|
| Côte d'Ivoire |
Comoe National Park |
|
| Côte d'Ivoire |
Gueoule and Glo Mountain Forest Reserves |
|
| Côte d'Ivoire |
Marahoue National Park |
|
| Côte d'Ivoire |
Mopri Forest Reserve |
|
| Côte d'Ivoire |
Mount Nimba Strict Nature Reserve |
|
| Côte d'Ivoire |
Peko Mountain National Park |
|
| Côte d'Ivoire |
Sangbe Mountain National Park |
|
| Côte d'Ivoire |
Tai National Park and Nzo Faunal Reserve |
|
| Ghana |
Ankasa Resource Reserve - Nini-Sushien National Park |
|
| Ghana |
Bia National Park and Resource Reserve |
|
| Ghana |
Cape Three Points Forest Reserve |
|
| Ghana |
Draw River Forest Reserve |
|
| Ghana |
Ebi River Shelterbelt Forest Reserve |
|
| Ghana |
Fure River Forest Reserve |
|
| Ghana |
Kakum National Park - Assin Attandaso Resource Reserve |
|
| Ghana |
Pra-Sushien Forest Reserve |
|
| Ghana |
Subri River Forest Reserve |
|
| Guinea |
Diécké |
|
| Guinea |
Kounounkan |
|
| Guinea |
Massif du Ziama |
|
| Guinea-Bissau |
Cantanhez forests |
|
| Guinea-Bissau |
Lagoas de Cufada |
|
| Guinea-Bissau |
Rio Tombali, Rio Cumbijã and Ilha de Melo |
|
| Liberia |
Cestos - Senkwen |
|
| Liberia |
Grebo |
|
| Liberia |
Lofa-Gola-Mano Complex |
|
| Liberia |
Nimba mountains (part of Mount Nimba transboundary AZE) |
|
| Liberia |
Sapo National Park |
|
| Liberia |
Wologizi mountains |
|
| Liberia |
Wonegizi mountains |
|
| Liberia |
Zwedru |
|
| Nigeria |
Afi River Forest Reserve |
|
| Nigeria |
Cross River National Park: Oban Division |
|
| Nigeria |
Okomu National Park |
|
| Nigeria |
Omo Forest Reserve |
|
| Nigeria |
Pandam Wildlife Park |
|
| Senegal |
Parc National de Basse Casamance |
|
| Sierra Leone |
Gola Forest Reserve |
|
| Sierra Leone |
Kambui Hills Forest Reserve |
|
| Sierra Leone |
Kangari Hills Non-hunting Forest Reserve |
|
| Sierra Leone |
Loma Mountains Non-hunting Forest Reserve |
|
| Sierra Leone |
Outamba-Kilimi National Park |
|
| Sierra Leone |
Tingi Hills Non-hunting Forest Reserve |
|
| Sierra Leone |
Western Area Peninsula Non-hunting Forest Reserve |
|
| Togo |
Fazao-Malfakassa National Park |
|
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| Artificial/Terrestrial |
Plantations |
suitable |
resident |
| Forest |
Subtropical/Tropical Moist Lowland |
major |
resident |
|
Altitude
|
0 - 1000 m
|
Occasional altitudinal limits
|
|
Threats & impact
| 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 Decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Agriculture & Aquaculture |
Annual & perennial non-timber crops / Shifting agriculture |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Agriculture & Aquaculture |
Annual & perennial non-timber crops / Small-holder farming |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Fishing & harvesting aquatic resources / Unintentional effects: (large scale) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Fishing & harvesting aquatic resources / Unintentional effects: (subsistence/small scale) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Hunting & trapping terrestrial animals / Intentional use (species is the target) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Species mortality |
|
Utilisation
| Purpose |
Primary form used |
Life stage used |
Source |
Scale |
Level |
Timing |
| Food (human) |
Whole |
Adults and juveniles |
Wild |
Subsistence, National |
Non-trivial |
Recent |
| Pets |
Whole |
Adults and juveniles |
Wild |
International |
Non-trivial |
Recent |
Recommended citation
BirdLife International (2013) Species factsheet: Ceratogymna elata. Downloaded from
http://www.birdlife.org on 19/06/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 19/06/2013.
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.
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