Summary

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Western chimpanzees (Pan troglodytes verus) may be present in Boin River Forest Reserve.
No chimpanzees were recorded in the last survey.
The chimpanzee population trend is decreasing.
The site has a total size of 278 km².
Key threats to chimpanzees are hunting and farmland expansion.
Conservation activities are not documented.

Site characteristics

Boin River Forest Reserve is located in western Ghana, bordering Côte d’Ivoire.The site was declared a Forest Reserve in 1932. The terrain is hilly, with swamps in the valleys, and the vegetation is transitional between moist evergreen and wet evergreen forest that is mostly undisturbed- about two-thirds of the reserve have not been logged (BirdLife International 2022).

Table 1. Basic site information for Boin River Forest Reserve

Species	Pan troglodytes verus
Area	278 km²
Coordinates	Lat: 5.728422 , Lon: -2.919808
Type of site	Protected area (Forest Reserve)
Habitat types	Subtropical/tropical moist lowland forest
Type of governance

Types of sites Governance types Habitat types

Ape status

A rapid survey was conducted at the site in 2009 in the context of the Wildlife Wood Project in Ghana, which aims to assist logging companies in improving wildlife management in concession areas (Gatti 2009). No chimpanzee signs were detected during the survey.

Table 2. Ape population estimates reported for Boin River 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 verus	2009		0			Boin River Forest Reserve	Reconnaissance walk		Gatti 2009	survey effort: 12.99 km	GHA0001, GHA0007 GHA0012, GHA0024, GHA0027, GHA0028, GHA0029

Sampling methods Analytical frameworks

Threats

Table 3. Threats to apes reported for Boin River Forest Reserve

Category	Specific threats	Threat level	Description	Year of threat
2 Agriculture & aquaculture	2.1 Annual & perennial non-timber crops	Present (unknown severity)	A few farms in the reserve were reported in the early 1990s; current extent of farms is unknown (Gatti 2009).	1990-Ongoing (2009)
5 Biological resource use	5.1 Hunting & collecting terrestrial animals	High (more than 70% of population affected)	Widespread poaching (BirdLife International 2022).	Ongoing (2022)
5 Biological resource use	5.3 Logging & wood harvesting	Present (unknown severity)	The north-eastern portion of the reserve was logged between 1964 and 1973 (BirdLife International 2022).	1964-1973

Threats

Conservation activities

Challenges

Table 5. Challenges reported for Boin River Forest Reserve

Challenges	Specific challenges	Source	Year(s)
	Not reported

Challenges

Enablers

Table 6. Enablers reported for Boin River 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 Boin River Forest Reserve

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

Behaviours

Exposure to climate change impacts

External links

References

BirdLife International. (2022). Important Bird Areas factsheet: Boin River Forest Reserve. http://www.birdlife.org

Gatti, S. (2009). Mammal surveys and capacity building for the Wildlife Wood Project—Ghana. Unpublished report to the WWP-Ghana.

Page created by: APES Atlas Team Date: 2022-03-18