Mamiri Forest Reserve

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West Africa > Ghana > Mamiri Forest Reserve



Species Pop. Size Trend Data Quality


Mamiri Forest Reserve covers an area of 45 km2 immediately south of the town of Sureso. It was constituted as a reserve in 1949. It has a long, narrow shape, extending for about 15 km from north to south, and only 2-4 km from east to west (Oates, 2006). Mamiri lies on the boundary between the Wet Evergreen and Moist Evergreen forest zones (Hall and Swaine, 1981).

Ape status

There exist no recent estimate of chimpanzee abundance in Ghana. The last estimate was made by TelekiĀ“s (1989), which estimated between 300 to 500 chimpanzees to be present in Ghana. Chimpanzee's presence was confirmed during field surveys in 2005 at this site (Oates, 2006), however recent surveys in 2009 failed to confirm their survival at this site today (Gatti, 2009).

Year Estimated Number of Individuals Source Dates
2009 ?
2008 ?
2007 ?
2006 ?
2005 Presence confirmed

Table 1: Chimpanzee population estimates in Mamiri Forest Reserve


Hawthorne & Abu-Juam (1995) reported that Mamiri was last logged in 1973. Samartex Timber and Plywood Ltd was granted a 40-year concession to log Mamiri in 1997, relinquished this in 2001, then later took the concession back (FC Regional Planning Team, 2001; Forest Office, Asankrangwa; cited in Oates, 2006). Hunting is prevalent at this site, but not excessive, probably due to low mammal densities which render this activity uneconomic for local hunters (Oates, 2006).

Major Threats Mamiri FR
Poaching yes
Disease no
Agriculture yes
Logging yes
Mining no

Table 2: Threats to chimpanzee in Mamiri Forest Reserve

Conservation activities

Primate species monitoring

Conservation actions Mamiri FR
Law Enforcement yes
Long-term Research no
Permanent Monitoring Program no
Education no
Public Awareness Campaign no
Ecotourism no

Table 3: Conservation activities in Mamiri Forest Reserve


During field surveys in 2005, three nests were seen in the northern part of Mamiri (Oates, 2006). However, during recent 'recce' along 88km in 2009, no signs of chimpanzee's presence were found (Gatti, 2009).


  • Abedi-Lartey, M. and Ambonsah, J. (1999) Preliminary Survey of Anthropoid Primates in Krokusa Hills Forest Reserve. Unpublished Report to the Protected Areas Development Program and Wildlife Division of the Forestry Commission, Accra, Ghana.
  • Magnuson, L., Adu-Nsiah, M. and Kpelle, D. (2003) Ghana. In: Kormos, R., Boesch, C., Bakarr, M.I., Butynski, T.M. eds, West African Chimpanzees. Status Survey and Conservation Action Plan. IUCN/SSC Priamte Specialist Group. IUCN, Gland, Switzerland. pp.111-116.
  • Hall, J.B. and Swaine, M.D. (1981) Distribution and Ecology of Vascular Plants in Tropical Rain Forest. W. Junk Publishers, Den Haag.
  • McManus, E. (2005) Republic of Ghana. In: Caldecott, J., Miles, L. eds World Atlas of Great Apes and Their Conservation. Prepared at the UNEP World Conservation Monitoring Centre. University of California Press, Berkeley, USA.
  • Mombu, V.M., Adjewodah, P., Akom, E., Yelibora, M.A., Oppong, J. and D. Bewong (2008) Ecology and Conservation of the White-Necked Rockfowl. Annual Report. Nature Conservation Research Centre, 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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