Mamiri Forest Reserve

West Africa > Ghana > Mamiri Forest Reserve

Summary

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• Western chimpanzees (Pan troglodytes verus) are present in Mamiri Forest Reserve.
• No chimpanzees were recorded in the last survey.
• The chimpanzee population trend is decreasing.
• The site has a total size of 45 km².
• Key threats to chimpanzees are hunting and presence of farms and plantations.
• Conservation activities are not documented.

Site characteristics

Mamiri Forest Reserve is located in western Ghana, near the town of Sureso, and it is connected to Fure Headwaters Forest Reserve in the south. The reserve was established in 1949. It was first logged in 1973, and in 1996, Samartex was granted a 40-year concession. The northern part of the reserve remains mostly intact, but forest in the south is degraded and fragmented. Areas bordering the northern part of the reserve are designated as a Hill Sanctuary. Mamiri's landscape contains a swampy valley and hills in the northern part (Gatti 2009). The site was declared an Important Bird Area in 2001 (BirdLife International 2022).

Table 1. Basic site information for Mamiri Forest Reserve

Area	45 km²
Coordinates	5.666274 N, -2.349749W
Designation	Forest Reserve
Habitat types	Subtropical/tropical moist lowland forest

IUCN habitat categories Site designations

Ape status

The last survey to confirm chimpanzee presence was in 2005 (Oates 2006). 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 signs of chimpanzees were recorded.

Table 2. Ape population estimates in Mamiri 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	Mamiri Forest Reserve	Index survey (reconnaissance walk) and camera trap survey	Gatti 2009	survey effort: 88.67 km

Threats

Table 3. Threats to apes in Mamiri 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	Present, but threat severity unknown		The site includes c.2.3 ha of plantation and a few farms (BirdLife International 2022).	Ongoing (2022)
3. Energy production & mining		Unknown
4. Transportation & service corridors		Unknown
5. Biological resource use	5.1 Hunting & collecting terrestrial animals	High	1.049 hunting signs/km reported during a 2009 survey (Gatti 2009).	Hunting has severely impacted wildlife in the reserve (Gatti 2009).	Ongoing (2009)
	5.3 Logging & wood harvesting	Unknown whether threat is currently present		Mamiri was first logged in 1973. In 1996, Samartex was granted a 40-year concession (Gatti 2009).	Unknown
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 Mamiri 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 Mamiri Forest Reserve

Challenge	Source
Not reported

Research activities

Documented behaviours

Table 6. Ape behaviors reported for Mamiri Forest Reserve

Behavior	Source
Not reported

References

BirdLife International (2022) Important Bird Areas factsheet: Mamiri 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.
Oates, J. (2006) Primate Conservation in the Forests of Western Ghana. Unpublished report to the Wildlife Division, Forestry Commission, Ghana.

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