Ogbesse Forest Reserve

West Africa > Nigeria >Ogbesse Forest Reserve

Summary

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• 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

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 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

IUCN Threats list

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

Conservation activities list (Junker et al. 2017)

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

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