Mamiri Forest Reserve

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Summary

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Leaflet

• Western chimpanzees (Pan troglodytes verus) may be 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

Species	'Pan troglodytes verus
Area	45 km²
Coordinates	Lat: 5.666274 , Lon: -2.349749
Type of site	Protected area (Forest Reserve)
Habitat types	Subtropical/tropical moist lowland forest
Type of governance

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 reported for Mamiri 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			Mamiri Forest Reserve	Camera trap, Reconnaissance walk		Gatti 2009	survey effort: 88.67 km

Threats

Table 3. Threats to apes reported for Mamiri Forest Reserve

Category	Specific threats	Threat level	Description	Year of threat
10 Geological events		Absent
12 Other threat		Absent
5 Biological resource use	5.1 Hunting & collecting terrestrial animals	High (more than 70% of population affected)	Hunting has severely impacted wildlife in the reserve (Gatti 2009).	Ongoing (2009)
2 Agriculture & aquaculture	2.2 Wood & pulp plantations	Present (unknown severity)	The site includes c.2.3 ha of plantation and a few farms (BirdLife International 2022).	Ongoing (2022)
1 Residential & commercial development		Unknown
3 Energy production & mining		Unknown
4 Transportation & service corridors		Unknown
5 Biological resource use	5.3 Logging & wood harvesting	Present (unknown severity)	Mamiri was first logged in 1973. In 1996, Samartex was granted a 40-year concession (Gatti 2009).	1973.0
6 Human intrusions & disturbance		Unknown
7 Natural system modifications		Unknown
8 Invasive & other problematic species, genes & diseases		Unknown
9 Pollution		Unknown
11 Climate change & severe weather		Unknown

IUCN Threats list

Challenges

Table 5. Challenges reported for Mamiri Forest Reserve

Challenges	Specific challenges	Source	Year(s)
	Not reported

Enablers

Table 6. Enablers reported for Mamiri 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

Documented behaviours

Table 7. Behaviours documented 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.

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