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Agricultural extension systems across Africa are under great pressure to become more efficient and effective. Whereas proposals abound as to what African governments should do in order to achieve these goals, those addressing how they might do so are rare. The literature still offers little guida...
Since the turn of the century, African pastoralists have been held responsible for overuse of woody plants and for the degradation and desertification of many arid and semiarid lands. We analyzed the impacts of pastoral nomads and their livestock on the recruitment (establishment to first reprodu...
Questions as to whether public investment in international agricultural research is a `Good Thing' or not may best be addressed using two arguments: (1) justifications based on whether or not past investments have yielded substantial benefits to societies and the resource-poor; and (2) that futur...
This paper deals with the environmental impacts of livestock in the developing world. It discusses the complex role of livestock in developing countries, diversity of livestock production systems; health benefits from animal foods; livestock and the need for intensification; environmental impacts...
Climate change science has been discussed and synthesized by the world's best minds at unprecedented scales. Now that the Kyoto Protocol may become a reality, it is time to be realistic about the likelihood of success of mitigation activities. Pastoral lands in the tropics hold tremendous sequest...
Biodiversity in rangelands is decreasing, due to intense utilization for livestock production and conversion of rangeland into cropland; yet the outlook of rangeland biodiversity has not been considered in view of future global demand for food. Here we assess the impact of future livestock produc...
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