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Heartwater is a tick-borne disease of cattle, sheep and goats and some wild ruminants prevalent in much of Africa and the Caribbean. It is caused by the rickettsial organism Cowdria ruminantium and transmitted by ticks of the genus Amblyomma. The disease has traditionally been controlled by the u...


Minjauw, B.Kruska, R.L.Odero, A.Randolph, Thomas F.McDermott, John J.Mahan, S.M.Perry, Brian D.[Economic impact assessment of Cowdria ruminantium infection and its control in Southern Africa]Economic impact assessment of Cowdria ruminantium infection and its control in Southern Africa

A classification of the major ruminant livestock production systems in West Africa is proposed. The proposed typology has two major classes of systems-sole livestock and crop-livestock. The sole livestock class has two systems (rangeland-based and landless) and the crop-livestock class has three ...


Fernández Rivera, S.Okike, I.Manyong, Victor M.Williams, Timothy O.Kruska, R.L.Tarawali, Shirley A.[Classification and description of the major farming systems incorporating ruminant livestock in West Africa]Classification and description of the major farming systems incorporating ruminant livestock in West Africa
Staal, Steven J.Kruska, R.L.Baltenweck, IsabelleKenyanjui, M.Wokabi, A.Njubi, D.Thornton, Philip K.Thorpe, W.R.[Combined household and GIS analysis for smallholder production systems: An application to intensifying smallholder dairy systems in central Kenya]Combined household and GIS analysis for smallholder production systems: An application to intensifying smallholder dairy systems in central Kenya

More effective control of tsetse-transmitted trypanosomiasis may open vast areas of Africa to livestock production, both increasing food production and endangering biodiversity on the continent. This paper Reports on the Development of a conceptual model of the linkages between trypanosomiasis co...


Reid, Robin S.Kruska, R.L.Ellis, J.E.Wilson, C.J.Perry, Brian D.[Environmental impacts of trypanosomiasis control through land-use change: Conceptual model, approach and preliminary results]Environmental impacts of trypanosomiasis control through land-use change: Conceptual model, approach and preliminary results

Animal trypanosomosis is particularly important in Ethipia where 7-10 million cattle are at risk. A geo-referenced census of over 5000 households was conducted between March and July 1996 to better understand factors affecting demand of the a cypermethrin pour-ons used since January 1991 to contr...


Wangila, J.Swallow, B.M.Tesfamichael, N.Okello, O.Kruska, R.L.[Factors affecting farmer demand and pour-on treatments in Ethiopia]Factors affecting farmer demand and pour-on treatments in Ethiopia

Agricultural expansion is a major cause of biodiversity loss worldwide. In Africa, biologists have observed that the populations of some tsetse species, which transmit human and livestock trypanosomosis, decline or disappear as human populations grow and farmers clear fly habitat for cultivation....


Reid, Robin S.Kruska, R.L.Deichmann, U.Thornton, Philip K.Leak, S.G.A.[Human population growth and the extinction of the tsetse fly]Human population growth and the extinction of the tsetse fly

Climate change and increasing climate variability threaten the attainment of the Millennium Development Goals (MDG), and some of the worst effects on human health and agriculture will be in sub-Saharan Africa, particularly in vulnerable regions. The relationships between climate change and the vu...


Thornton, Philip K.Jones, Peter G.Owiyo, T.Kruska, R.L.Herrero, Mario T.Orindi, V.Bhadwal, S.Kristjanson, Patricia M.Notenbaert, An Maria OmerBekele, N.Omolo, Abisalom[Climate change and poverty in Africa: Mapping hotspots of vulnerability]Climate change and poverty in Africa: Mapping hotspots of vulnerability

Perry, Brian D.Kruska, R.L.Reid, Robin S.[The development and use of geographic information systems to assist Trypanosomiasis control]The development and use of geographic information systems to assist Trypanosomiasis control

Traditional studies of agricultural technology adoption have long been constrained by a limited ability to include spatially-differentiated data. Typically, crude proxies or location dummy variables are used to approximate spatial effects. GIS tools, however, now allow spatially explicit data t...


Staal, Steven J.Wolff, T. deBaltenweck, IsabelleRomney, D.L.Waithaka, M.M.Njoroge, L.Kruska, R.L.Wokabi, A.Njubi, D.Thorpe, W.R.[Combined household and GIS analysis of farmer strategies: an application to feeding practices on smallholder Kenyan dairy farms]Combined household and GIS analysis of farmer strategies: an application to feeding practices on smallholder Kenyan dairy farms

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