Area of Expertise | Environment and development studies with a focus on droughts and associated impacts, range ecology and management, environmental history, natural resource-based conflicts, human vulnerability and adaptation to climate change, fire ecology, land use and tenure changes, pastoral development and risk management, food security, indigenous knowledge and role of traditional institution in natural resource management
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Professional Experience | March 2011 to date: Postdoc (Humboldt Foundation, Georg Forster Fellowship), University of Cologne, Germany;
January 2010 to May 2010: Visiting Researcher, Food Security Center, University of Hohenheim, Stuttgart, Germany;
March 2010 to February 2011: Associate Professor, Department of Animal and Range Sciences, Hawassa University, Ethiopia;
March 2008 to February 2010: Assistant Professor, Awassa College of Agriculture, Hawassa University, Ethiopia;
November 2008 to February 2011: Head, Department of Animal and Range Sciences, Hawassa University, Ethiopia;
November 2007 to February 2008: Assistant Scientist, Center for Ecological and Evolutionary Synthesis, University of Oslo, Norway;
January 2003 to October 2007: Research Fellow, Department of International Environment and Development Studies, Norwegian University of Life Sciences, Norway;
November 2002 to December 2002: Assistant Professor, Awassa College of Agriculture, Debub University, Ethiopia;
March 1999 to November 2002: Lecturer, Awassa College of Agriculture, Debub University, Ethiopia;
September 1999 to April 2000: Acting Head, Department of Animal Production and Rangeland Management, Debub University, Ethiopia;
October 1997 to January 1999: MSc Student at Alemaya University of Agriculture, Ethiopia;
June 1993 to October 1997: Manager, Borana Cattle breed, Ethiopia;
September 1990 and May 1993: Rangeland Management Expert, Southern Rangelands of Ethiopia in Borana under the Federal Ministry of Agriculture, Ethiopia
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Important Publication | Angassa, A., Oba, G., 2012. Cattle herd vulnerability to rainfall variability: responses to two management scenarios in Southern Ethiopia. Trop Anim Health Prod.
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Angassa, A., 2012. Community-based knowledge of indigenous vegetation in arid African landscapes. The Journal of Sustainable Development 8:70-85.
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Angassa, A., 2012. Effects of grazing intensity and bush encroachment on herbaceous species and rangeland condition in Southern Ethiopia. Land Degrad Dev.
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Angassa, A., Oba, G., Tolera, A., 2012. Bush encroachment control demonstrations and management implications on herbaceous species in savannas of southern Ethiopia, Tropical and Subtropical Agroecosystems 15:173-185.
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Angassa, A., Sheleme, B., Oba, G., Treydte, A.C., Linstädter, A., Sauerborn, J., 2012. Savanna land use and its effect on soil characteristics in Southern Ethiopia. Journal of Arid Environments.
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Terefea, B., Limenihb, M., Gureb, A., Angassa, A., 2011. Impact of Acacia drepanolobium (an invasive woody species) on gum-resin resources and local livelihood in Borana, Southern Ethiopia. Tropical and Subtropical Agroecosystems 14:1063-1074.
Summary
Angassa, A., Oba, G., 2007. Relating long-term rainfall variability to cattle population dynamics in communal rangelands and a government ranch in southern Ethiopia. Agricultural Systems 94:715-725.
Angassa, A., Oba, G., 2009. Bush encroachment control demonstrations in southern Ethiopia: 1. Woody species survival strategies with implications for herder land management. African Journal of Ecology, African Journal of Ecology 47:63–76.
Angassa, A., Oba, G., 2008. Herder perception on impacts of Range Enclosures, Farms and Bush encroachment on the rangelands of Borana, Southern Ethiopia. Human Ecology 36:201-215.
Angassa, A., Oba, G., 2008. Effects of management and time on mechanisms of bush encroachment in southern Ethiopia. African Journal of Ecology 46:186-196.
Oba, G., Byakagaba, P., Angassa, A., 2008. Participatory monitoring of biodiversity in East African grazing lands. Land Degradation Development 19:636–648.
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