Ogbesse Forest Reserve
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
Area | 73 km² |
Coordinates | 7.550617, 5.359618 |
Designation | Forest Reserve |
Habitat types | Plantations, subtropical/tropical heavily degraded forest |
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 in Ogbesse Forest Reserve
Species | Year | Abundance estimate (95% CI) | Density estimate [ind./ km²] (95% CI) | Encounter rate (nests/km) | Area | Method | Source | Comments | A.P.E.S. database ID |
---|---|---|---|---|---|---|---|---|---|
Pan troglodytes ellioti | 2006 | 0 | Ogbesse Forest Reserve | Index survey (reconnaissance walk) | Greengrass 2006 | Chimpanzees not seen here since 1996 |
Threats
Table 3. Threats to apes in Ogbesse Forest Reserve
Category | Specific threats | Threat level | Quantified severity | Description | Year of threat |
---|---|---|---|---|---|
1. Residential & commercial development | Unknown | ||||
2. Agriculture & aquaculture | 2.2 Wood & pulp plantations | High | The site has been completely logged and cleared for farms and teak and gmelina plantations (Greengrass 2006). | Ongoing (2006) | |
3. Energy production & mining | Unknown | ||||
4. Transportation & service corridors | 4.1 Roads & railroads | High | A road runs through the reserve to Ise Town (Greengrass 2006). | Ongoing (2006) | |
5. Biological resource use | 5.3 Logging & wood harvesting | High | Illegal logging (Greengrass 2006). | Ongoing (2006) | |
6. Human intrusion & disturbance | Unknown | ||||
7. Natural system modifications | 7.1 Fire & fire suppression | High | Widespread burning to clear land (Greengrass 2006). | Ongoing (2006) | |
8. Invasive & other problematic species, genes, diseases | Unknown | ||||
9. Pollution | Unknown | ||||
10. Geological Events | Absent | ||||
11. Climate change & severe weather | Unknown | ||||
12. Other options | Absent |
Conservation activities
Table 4. Conservation activities in Ogbesse Forest Reserve
Category | Specific activity | Description | Year of activity |
---|---|---|---|
1. Residential & commercial development | Not reported | ||
2. Agriculture & aquaculture | Not reported | ||
3. Energy production & mining | Not reported | ||
4. Transportation & service corridors | Not reported | ||
5. Biological resource use | Not reported | ||
6. Human intrusion & disturbance | Not reported | ||
7. Natural system modifications | Not reported | ||
8. Invasive & other problematic species, genes, diseases | Not reported | ||
9. Pollution | Not reported | ||
10. Education & Awareness | Not reported | ||
11. Habitat Protection | Not reported | ||
12. Species Management | Not reported | ||
13. Livelihood; Economic & Other Incentives | Not reported |
Challenges
Table 5. Challenges reported for Ogbesse Forest Reserve
Challenge | Source |
---|---|
Not reported |
Research activities
Documented behaviours
Table 6. Ape behaviors reported for Ogbesse Forest Reserve
Behavior | Source |
---|---|
Not reported |
External links
References
Greengrass, E.J. (2006). A survey of chimpanzees in south-west Nigeria. Report to the NCF-WCS Biodiversity Research Programme.
Page completed by: A.P.E.S. Wiki team Date: 03/03/2023