Abstract
The study on the distribution, abundance and habitat use of the West African manatee in Pandam Lake through Traditional Ecological Knowledge (TEK) was conducted between 2010 and 2012. Rapid Rural Appraisal (RRA) approach (questionnaire and focus group discussion) was adopted. One hundred and twenty (120) questionnaires were distributed to all the fishermen in
Pandam, Aningo and Sabongida villages in the study area with eight groups created from the fishermen. Descriptive analysis was used for data collected while data on years of fishing experience were correlated with data on abundance. Age of the respondents ranged from 21 to 80years with 10 60years of fishing experience. All the respondents had sighted manatee in manatee stream (MS), GU and Zuzurfar arm (ZU) but 54.17% did not sight manatee in the main Lake (ML). Also 63.33% (n=76) usually sight manatee >4 times/month in the dry season while 0.83% (n=1) usually sight manatee >4 times/month in the wet season. 63% (n=75) of the respondents sight manatee mostly in the evening (18-21hr), 27% (n=33) sight manatee mostly in the early hours (5-11hr). Sighting of 2 3 manatees together is more common 56.67% (n=68) of the respondents, 33.33% (n=40) mostly sight 1 manatee while 10% (n=12) mostly sight 4-6 manatees together but none of them sighted >6 manatees together. Manatee presence indices include: Grazed bank vegetation, Torn net, Trails or cloud of mud, Dung, oil extract and bone from dead manatee. Manatee was said to be feeding on Echinocloa stagnina, Echinocloa pyramidalis, Polygonum lanigerium, and Nymphea lotus. This study has clearly shown that TEK can be used as an important instrument to collect baseline information that will enhance the field ecological study and that effective conservation strategy can be achieved by integrating local communities’ knowledge in conservation programs especially when dealing with species that are difficult to study like manatee. For this reason, recommendation related to manatee conservation or a management plan, should not only rely on ecological field result but,
take into consideration the perception and recommendations from the local population regarding manatee.
References
Akoi K (2004). The ecology of the West African manatee in the lagoon complex of Fresco. In Fishers and the West African manatee in the Fresco lagoon complex, Cote d’Ivoire, Common property, conflict and conservation. PhD thesis, DICE, University of Kent at Canterbury, Kent, UK, Pp.365
Akosim C (1997). Evaluation of Biodiversity Conservation and Management in Pandam Wildlife Park, Plateau State, Nigeria. PhD Thesis. Department of Wildlife and Fisheries Management, University of Ibadan, 232Pp.
Aristide K (2011). Activity center, habitat use and conservation of the West African Manatee (Trichechus senegalensis link 1795) in the Douala Edea and Lake Ossa Wildlife Reserves. M.Sc Thesis. Department of Animal Biology, University of Dschang, Republic of Cameroon. Pp 133.
Barbara S. and Jeff F (1998). In the Company of Manatees. Three Rivers Press, New York, USA. Cavestro L (2003). PRA-Participatory Rural appraisal concepts methodologies and techniques. http://www.scribd.com/doc/27870548/Participatory Rural-Appraisal.
Daniel DS and Abdul J (2006). Baseline survey on the West African manatee along the Sierra Leone Coastal Areas. In: Convention of the West African manatee, T. senegalensis along the West African Coastal zone in February,2006, Wetlands International, Dakar.
Ezealor U (2002). Critical sites for Biodiversity Conservation in Nigeria. Nigerian Conservation Foundation, Lagos. 110 Pp.
ICSU. (2002). Science and traditional knowledge. Report from the ICSU Study Group on Science and Traditional Knowledge. 15 p.
Iwar IM (2003). A field survey on manatees along the lower Benue River system. M.Tech. Thesis. Department of Ecotourism and Wildlife Management, Federal University of Technology, Akure, Nigeria. Pp 82.
Nomura F and Higashi S (2000). Effects of food distribution on the habitat usage of a female Brown bear Ursus arctos yesoensis in a beech-forest zone of northernmost Japan. Ecological Research 15, 209-217.
Ofori-Danson (2009). Conservation of West African manatee in Ghana. A paper presented at the West African manatee conservation capacity training program held at the Afram arm of the Volta Lake Ghana. Organized by NCRC, Ghana, and sponsored by Earth Watch International U.K. from 15th-29th November 2009.
Osakwe M and Meduna A (1988). Management of the pigmy Hippopotamus and West African manatee in Jos Wildlife Park. The Nigerian Field.Vol.53:175 177.
Piran CLW, Nancy VJ, Anna RR and Nola HLB (2005). Questionnaires in ecology: a review of past use and recommendations for best practice. Journal of Applied Ecology 42, 421–430
Powell JA (1996). The distribution and biology of the West African manatee (Trichechus senegalensis Link, 1795). Report to the Florida Marine Research Institute, 1008th Avenue SE,St. Petersburg, Florida 33701. March 1996.
Powell JA and Akoi K (2006). IUCN Red List Assessment. Draft Report to the IUCN Survival Commission. March 1996.
Rathbun GB (1990). Manatees. In: Greimeks Encyclopaedia of Mammals. Mc Graw hill publishing company.
Reeves RR, Tuboku-Metzger D and Kapindi RA (1988). Distribution and Exploitation of Manatees in Sierra Leone. Oryx 22:75-84.
Shackeroff JM and Campbell LM (2007). Traditional ecological knowledge in conservation research: problems and prospects for their constructive engagement. Conservation and Society 5:343-60.
Sommer LC, Talus CE, Bachman M, Barnes F, Ebinger M, Lynch J and Maestas A (2004). The importance of traditional knowledge in science education: arm education uses interactive kiosks as outreach tool. Fourteenth ARM Science Team Meeting Proceedings, Albuquerque, New Mexico.
Warren DM (1992). Indigenous knowledge, biodiversity conservation and development. Keynote address at the International Conference on Conservation of Biodiversity in Africa: Local Initiatives and Institutional Roles Nairobi, Kenya.
