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TSETSE and Trypanosomiasis Information

Numbers 12884 - 13086









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    Mapping the benefits: developing a new decision tool for tsetse and trypanosomiasis interventions 2004
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    The purpose of this study was to investigate the feasibility of linking quantitative economic variables to a geographical information system (GIS) spatial framework in order to provide new insights and reinforce the decision-making process for tsetse and trypanosomiasis (T&T) interventions. Hitherto, GIS studies have mapped a series of ecological, demographic and socio-economic indicators, but have stopped short of mapping the distribution of a derived measure quantified in monet ary units. Furthermore, the economic aspects of T&T control have historically been dealt with separately from their other effects, with results usually expressed in terms of benefit–cost ratios or extra income per head of livestock. Even when they have been expressed in terms of dollars per square kilometre these results have not been mapped; instead they have been used as inputs for benefit–cost type analyses. In contrast, our approach combines – for the first time – economic he rd models with mapping of both breed/production systems and the expansion of livestock populations under various scenarios.
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    Long-term tse-tse and trypanosomiasis management options in West Africa 2004
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    Tsetse-transmitted animal trypanosomiasis is a complex disease that directly and indirectly has an impact on Africa’s crop and livestock agricultural development. In this paper, state-of-the-art spatial tools are applied to study the variety of agro- ecological settings in West Africa with a view to providing decision support to the management of the tsetse and trypanosomiasis ( T& problem according to the prevailing agro- ecological conditions. Based on the analytical mapping of dominant lives tock systems, land- use patterns, integration of livestock and crop agriculture ( mixed farming) and geoclimatic factors affecting tsetse ecology ( northern dry band with fragmented tsetse populations and southern humid band where tsetse are widespread), priority areas for T& T intervention were identified. These areas are situated the northern band of the tsetse belt where: • tsetse populations are fragmented ( and therefore vulnerable) or confined only to suitable vegetation along main river courses; • fly reinvasion risk is minimal due to land pressure and adverse climatic conditions for tsetse; and • integration of crop and livestock agriculture prevails. In these areas, the elimination of the fly and the disease may be achievable and consolidated through the expansion and intensification of mixed farming, leading to maximal yield benefits when expressed in terms of sustainable agriculture and rural development.

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