Boin River Forest Reserve

West Africa > Ghana > Boin River Forest Reserve

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

Area	278 km²
Coordinates	5.728422 N, -2.919808 W
Designation	Forest Reserve
Habitat types	Subtropical/tropical moist lowland forest

IUCN habitat categories Site designations

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 in Boin River 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 verus	2009			0	Boin River Forest Reserve	Index survey (reconnaissance walk)	Gatti 2009	survey effort: 12.99 km

Threats

Table 3. Threats to apes in Boin River 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	Unknown whether the threat category is present		A few farms in the reserve were reported in the early 1990s; current extent of farms is unknown (Gatti 2009).	Unknown
3. Energy production & mining		Unknown
4. Transportation & service corridors		Unknown
5. Biological resource use	5.1 Hunting & collecting terrestrial animals	High	3.232 hunting signs/km in a 2009 survey (Gatti 2009).	Widespread poaching (BirdLife International 2022).	Ongoing (2022)
	5.3 Logging & wood harvesting	Unknown whether the threat category is present		The north-eastern portion of the reserve was logged between 1964 and 1973 (BirdLife International 2022).	1964-1973
6. Human intrusion & disturbance		Unknown
7. Natural system modifications		Unknown
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 Boin River 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 Boin River Forest Reserve

Challenge	Source
Not reported

Research activities

Documented behaviours

Table 6. Ape behaviors reported for Boin River Forest Reserve

Behavior	Source
Not reported

References

BirdLife International (2022) Important Bird Areas factsheet: Boin River Forest Reserve. Downloaded from http://www.birdlife.org on 15/03/2022.
Gatti, S. (2009). Mammal surveys and capacity building for the Wildlife Wood Project - Ghana. Unpublished report to the WWP-Ghana.

Page completed by: A.P.E.S. Wiki team Date: 18/03/2022