Abstract
Forest resources in Nigeria are undergoing severe exploitation pressure due to demographic growth and socio-economic development. Through the process of forest clearing, deforestation alters the ecology of local malaria vectors. The overall goal of this study was to seek to clarify the mechanisms linking deforestation, economic development and malaria epidemiology and the ecological implications. The research methodology stresses a mix scale approach involving social research in areas of active and non-active deforestation in Ebonyi state Nigeria and the descriptive assessment and analysis of the forest resource exploitation issues, as well as the implication for sustainable forest resource management. Findings indicate that the income status of individuals residing in the areas of active deforestation was lower than those of areas of non-active deforestation. Higher yearly episodes of malaria and the tendency to spend less amount of money for malaria treatment characterized the areas of active deforestation and the inhabitants had higher preference for use of woodfuel and use of forest medicinal herbs for malaria treatment. In the areas of active deforestation, the mosquito night biting/landing rates were considerably higher than those of areas of non-active deforestation. Conservation policies aimed at slowing deforestation will impact malaria and would reduce the increasing incidence of deforestation-dependent malaria epidemics.
Introduction
Forest biodiversity, and the natural functioning of forest ecosystems, contribute immensely to human health. Indeed, the drastic alteration of forest systems – through large-scale deforestation– can open up opportunities for disease-causing pathogens, such as parasites, viruses or bacteria, to infect other organisms with which they have previously had no contact [1]. In Nigeria as in most
References: 1. Riesco IL. Forest loss and human health: focus on EU policies and practices. FERN Briefing Notes 2005. Available at: www.fern.org. Assessed June 15, 2008. 2. Nigeria First National Biodiversity Report NFNBR 2001. Available at: http://www.cbd.int/doc/world/ng/ng-nr-01-en.doc Assessed July 10, 2008 3 4. Wikipedia. Deforestation [Internet]. Wikipedia, The Free Encyclopedia; 2007 Mar 1, 10:30 UTC [cited 2007 Mar 1]. Available from: http://en.wikipedia.org/w/index.php?title=Deforestation&oldid=111799234. Assessed July 10, 2008. 5. Butler RA. Nigeria has worst deforestation rate, FAO revises figures. mongabay.com. November 17, 2005. Available at: http://news.mongabay.com/2005/1117-forests.html Assessed June 30, 2008. 11. Kondrashin AV, Jung RK, Akiyama J. Ecological aspects of forest malaria in Southeast Asia. In: Sharma VP, Kondrashin AV (eds) Forest Malaria in Southeast Asia. New Delhi: World Health Organization/Medical Research Council, 1991; pp 1–28. 12. World Health Organization. Malaria 2007. Available at http://www.who.int/countries/nga/areas/malaria/en/index.html, accessed July 19, 2008. 14. Leighton C, Foster R Economic impacts of malaria in Kenya and Nigeria. Major applied research paper no. 6, Health financing and sustainability project. Bethesda MD, Abt Associates. 1993. 20. Sofowora A. Medical Plants and Traditional Medicine in Africa, Spectrum Books Ltd., Ibadan. 1993. 23. World Health Organization. Expert Committee on Malaria. WHO Technical Report Series. Geneva. 892: i-v. 2000. 24. World Health Organization. The African Malaria Report 2003. WHO, Geneva. 2003. 26. Najera JA, Hempel J. The Burden of Malaria CTD/MAL/96.10. 1996. Available at: http://www.rollbackmalaria.org/docs/burden.htm Assessed June 30, 2008.