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

Species	Pan troglodytes ellioti
Area	242 km²
Coordinates	Lat: 6.96879 , Lon: 5.5626
Type of site	Protected area (Forest Reserve)
Habitat types	Agricultural land, Subtropical/tropical heavily degraded former forest
Type of governance

Types of sites Governance types Habitat types

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 reported for Owo 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			Owo Forest Reserve	Reconnaissance walk		Greengrass 2006

Sampling methods Analytical frameworks

Threats

Table 3. Threats to apes reported for Owo Forest Reserve

Category	Specific threats	Threat level	Description	Year of threat
2 Agriculture & aquaculture	2.1 Annual & perennial non-timber crops	High (more than 70% of population affected)	Land clearing for farmland (Greengrass 2006).	Ongoing (2006)
2 Agriculture & aquaculture	2.2 Wood & pulp plantations	High (more than 70% of population affected)	Extensive teak and gmelina plantations (Greengrass 2006).	Ongoing (2006)
7 Natural system modifications	7.1 Fire & fire suppression	Present (unknown severity)	Clearing land with fires, leading to high fragmentation of the forest (Greengrass 2006).	Ongoing (2006)

Threats

Conservation activities

Challenges

Table 5. Challenges reported for Owo Forest Reserve

Challenges	Specific challenges	Source	Year(s)
	Not reported

Challenges

Enablers

Table 6. Enablers reported for Owo 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

Enablers

Research activities

Documented behaviours

Table 7. Behaviours documented for Owo Forest Reserve

Category	Behavior	Observation type	Prevalence	Observation dates	Source	Habituation	Species	Comment
	Not reported

Behaviours

Exposure to climate change impacts

External links

References

Greengrass, E.J. (2006). A survey of chimpanzees in south-west Nigeria. Report to the NCF-WCS Biodiversity Research Programme. link

Page created by: APES Atlas Team Date: 2023-03-17