Owo Forest Reserve

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West Africa >Nigeria > Owo Forest Reserve

Summary

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  • Nigeria-Cameroon chimpanzees (Pan troglodytes ellioti) may be present in Owo Forest Reserve.
  • The population size is unknown.
  • The population trend is decreasing.
  • The site has a total size of 242 km².
  • Key threats to chimpanzees are clearing land for agriculture and plantations.
  • Conservation activities are not documented.

Site characteristics

The reserve is located in the state of Ondo, Nigeria.

Table 1. Basic site information for Owo Forest Reserve

Area 242 km²
Coordinates 6.96879,5.5626
Designation Forest Reserve
Habitat types Plantations, subtropical/tropical heavily degraded forest

IUCN habitat categories Site designations

Ape status

The site was superficially surveyed in 2006. Two nests were observed in Owo Forest Reserve in 1997, but it remains unconfirmed whether or not chimpanzees still survive here- a more extensive survey is needed to confirm chimpanzee occurrence (Greengrass 2006).

Table 2. Ape population estimates in Owo 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 Owo Forest Reserve Index survey (reconnaissance walk) Greengrass 2006

Threats

Table 3. Threats to apes in Owo Forest Reserve

Category Specific threats Threat level Quantified severity Description Year of threat
1. Residential & commercial development Unknown
2. Agriculture & aquaculture 2.1 Annual & perennial non-timber crops High Land clearing for farmland (Greengrass 2006). Ongoing (2006)
2.2 Wood & pulp plantations High Extensive teak and gmelina plantations (Greengrass 2006). Ongoing (2006)
3. Energy production & mining Unknown
4. Transportation & service corridors Unknown
5. Biological resource use Unknown
6. Human intrusion & disturbance Unknown
7. Natural system modifications 7.1 Fire & fire suppression Present but threat severity unknown Clearing land with fires, leading to high fragmentation of the forest (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 Owo 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 Owo Forest Reserve

Challenge Source
Not reported

Research activities

Documented behaviours

Table 6. Ape behaviors reported for Owo 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: 17/03/2023