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Results of preliminary experimentation with a computer based simulation model of beef production in theEastern Savannas of Colombia are reported The energetic consequences of various uses of sown pasturesare examined with reference to their long term biological feasibility The quality of grass le...


Thornton, Philip K.[Computer experimentation with an energy-based simulation model of animal production in the eastern savannas of Colombia]Computer experimentation with an energy-based simulation model of animal production in the eastern savannas of Colombia

Climate change will have far-reaching impacts on crop, livestock and fisheries production, and will change the prevalence of crop pests. Many of these impacts are already measurable. Climate impact studies are dominated by those on crop yields despite the limitations of climate-crop modelling, wi...


Campbell, Bruce M.Vermeulen, Sonja J.Aggarwal, Pramod K.Corner-Dolloff, CaitlinGirvetz, Evan H.Loboguerrero Rodriguez, Ana MaríaRamírez Villegas, JuliánRosenstock, Todd S.Sebastian, Leocadio S.Thornton, Philip K.Wollenberg, Eva K.[Reducing risks to food security from climate change]Reducing risks to food security from climate change

The sub-Saharan Africa challenge programme is designed to address the problems of failures of agricultural markets, inappropriate policies and natural resource degradation, that contribute to the continuing deterioration of livelihoods and food security in the region. It is seeking to do this by ...


Thornton, Philip K.Stroud, A.Hatibu, N.Legg, C.Ly, S.Twomlow, StephenMolapong, K.Notenbaert, An Maria OmerKruska, R.Kaufmann, Ralph R. von[Site selection to test an integrated approach to agricultural research for development: combining expert knowledge and participatory geographic information system methods]Site selection to test an integrated approach to agricultural research for development: combining expert knowledge and participatory geographic information system methods

The world is under significant pressure. The human population is projected to increase by 30% over the next quarter of a century to reach 8.3 billion by 2030 (UNPP, 2008). During this period, in developing countries, there is likely to be a rapid increase in demand for livestock products, driven ...


Herrero, Mario T.Thornton, Philip K.[Mixed crop livestock systems in the developing world: present and future]Mixed crop livestock systems in the developing world: present and future

Livestock production systems in Africa are experiencing rapid changes in structure and function due to increased demands for livestock products from a more prosperous and ever-increasing human population. Some of these changes could lead to increased emissions of greenhouse gases. This paper expl...


Herrero, Mario T.Thornton, Philip K.Kruska, R.L.Reid, Robin S.[Systems dynamics and the spatial distribution of methane emissions from African domestic ruminants to 2030]Systems dynamics and the spatial distribution of methane emissions from African domestic ruminants to 2030

Livestock are a global resource of significant benefits to society in the form of food, income, nutrients, employment, insurance, traction, clothing and others. In the process of providing these benefits, livestock can use a significant amount of land, nutrients, feed, water and other resources a...


Herrero, Mario T.Thornton, Philip K.Gerber, Pierre J.Reid, Robin S.[Livestock, livelihoods and the environment: understanding the trade-offs]Livestock, livelihoods and the environment: understanding the trade-offs

We outline the need for generic crop-livestock systems databases and data standards for comprehensive systems analysis in developing countries. We also indicate the type of data that such databases should contain and review how they can be collected. We describe IMPACT, a database and analysis to...


Herrero, Mario T.González Estrada, E.Thornton, Philip K.Quirós, CarlosWaithaka, M.M.Ruiz, R.Hoogenboom, Gerrit[IMPACT: Generic household-level databases and diagnostics tools for integrated crop-livestock systems analysis]IMPACT: Generic household-level databases and diagnostics tools for integrated crop-livestock systems analysis

Livestock systems in developing countries are characterised by rapid change, driven by factors such as population growth, increases in the demand for livestock products as incomes rise, and urbanisation. Climate change is adding to the considerable development challenges posed by these drivers of...


Thornton, Philip K.Herrero, Mario T.Freeman, H.A.Okeyo Mwai, AllyRege, J.E.O.Jones, Peter G.McDermott, John J.[Vulnerability, climate change and livestock - opportunities and challenges for the poor]Vulnerability, climate change and livestock - opportunities and challenges for the poor

Many research and development agencies are committed to halving the number of people living in extreme poverty by 2015. Knowledge of where the poor are, and what characterises them, is patchy at best. Here we describe a global livestock and poverty mapping study designed to assist in targeting re...


Thornton, Philip K.Kruska, R.L.Henninger, N.Kristjanson, Patricia M.Reid, Robin S.Robinson, Timothy P.[Locating poor livestock keepers at the global level for research and development targeting]Locating poor livestock keepers at the global level for research and development targeting

The field of ex ante impact assessment has been receiving increasing attention in recent years, due in part to the rapidly changing nature of funding for agricultural research and the shifts that have occurred in what is expected of the international agricultural research community. Ex ante studi...


Thornton, Philip K.[Ex ante impact assessment and seasonal climate forecasts: status and issues]Ex ante impact assessment and seasonal climate forecasts: status and issues

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