Ogbesse Forest Reserve
West Africa > Nigeria > Ogbesse Forest Reserve
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Summary
- Nigeria-Cameroon chimpanzees (Pan troglodytes ellioti) are absent in Ogbesse Forest Reserve.
- Chimpanzees have not been seen in the reserve since 1996.
- The site has a total size of 73 km².
- Key threats to chimpanzees are logging, hunting, and clearing forest for agriculture and hardwood plantations.
- Conservation activities are not documented.
Site characteristics
The Ogbesse Forest Reserve is located close to the Ekiti state capital of Ado-Ekiti, Nigeria. The reserve has been completely logged and cleared for farms and teak and gmelina plantations (Greengrass 2006).
Table 1. Basic site information for Ogbesse Forest Reserve
Species | 'Pan troglodytes ellioti |
Area | 73 km² |
Coordinates | Lat: 7.550617 , Lon: 5.359618 |
Type of site | Protected area (Forest Reserve) |
Habitat types | Agricultural land, Subtropical/tropical heavily degraded former forest |
Type of governance |
IUCN habitat categories Site designations
Ape status
Chimpanzees have not been sighted in the reserve since 1996; it is certain from the unsuitable habitat that they are extinct now. The reserve is small in size, its location close to the state capital and a road runs through it to Ise Town; these are probably all factors that have contributed to the quick over-exploitation of its natural resources (Greengrass 2006).
Table 2. Ape population estimates reported for Ogbesse Forest Reserve
Species | Year | Occurrence | Encounter or vistation rate (nests/km; ind/day) | Density estimate [ind./ km²] (95% CI) | Abundance estimate (95% CI) | Survey area | Sampling method | Analytical framework | Source | Comments | A.P.E.S. database ID |
---|---|---|---|---|---|---|---|---|---|---|---|
Pan troglodytes ellioti | 2006 | 0 | Ogbesse Forest Reserve | Reconnaissance walk | Greengrass 2006 | Chimpanzees not seen here since 1996 |
Threats
Table 3. Threats to apes reported for Ogbesse Forest Reserve
Category | Specific threats | Threat level | Description | Year of threat |
---|---|---|---|---|
10 Geological events | Absent | |||
12 Other threat | Absent | |||
2 Agriculture & aquaculture | 2.2 Wood & pulp plantations | High (more than 70% of population affected) | The site has been completely logged and cleared for farms and teak and gmelina plantations (Greengrass 2006). | Ongoing (2006) |
4 Transportation & service corridors | 4.1 Roads & railroads | High (more than 70% of population affected) | A road runs through the reserve to Ise Town (Greengrass 2006). | Ongoing (2006) |
5 Biological resource use | 5.3 Logging & wood harvesting | High (more than 70% of population affected) | Illegal logging (Greengrass 2006). | Ongoing (2006) |
7 Natural system modifications | 7.1 Fire & fire suppression | High (more than 70% of population affected) | Widespread burning to clear land (Greengrass 2006). | Ongoing (2006) |
1 Residential & commercial development | Unknown | |||
3 Energy production & mining | Unknown | |||
6 Human intrusions & disturbance | Unknown | |||
8 Invasive & other problematic species, genes & diseases | Unknown | |||
9 Pollution | Unknown | |||
11 Climate change & severe weather | Unknown |
Conservation activities
Challenges
Table 5. Challenges reported for Ogbesse Forest Reserve
Challenges | Specific challenges | Source | Year(s) |
---|---|---|---|
Not reported |
Enablers
Table 6. Enablers reported for Ogbesse Forest Reserve
Enablers | Specific enablers | Source | Year(s) |
---|---|---|---|
1 Site management | |||
2 Resources and capacity | |||
3 Engaged community | |||
4 Institutional support | |||
5 Ecological context | |||
6 Safety and stability |
Research activities
Documented behaviours
Table 7. Behaviours documented for Ogbesse Forest Reserve
Behavior | Source |
---|---|
Not reported |
Exposure to climate change impacts
External links
Relevant datasets
References
Greengrass, E.J. (2006). A survey of chimpanzees in south-west Nigeria. Report to the NCF-WCS Biodiversity Research Programme.
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