New Perspectives on Sustainable Grazing Management in Arid Zones of Sub-Saharan Africa

By G. Oba, Nils Chr. Stenseth, W. Lusigi. 2000

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EFFECTS OF GRAZING INTENSITY AND BUSH ENCROACHMENT ON HERBACEOUS SPECIES AND RANGELAND CONDITION IN SOUTHERN ETHIOPIA (2014, background): “Decline in herbaceous species, as a process of landscape level vegetation change, is a major challenge in savanna ecosystems (Oba et al., 2000a; Sheuyange et al., 2005).”
The causes of land-use and land-cover change: moving beyond the myths (2001, background): “Evidence indicates that grazing, rather than being inherently destructive, is necessary for the maintenance of tropical rangelands ( Oba et al., 2000 ).”
FEEDBACKS BETWEEN SOIL NUTRIENTS AND LARGE HERBIVORES IN A MANAGED SAVANNA ECOSYSTEM (2003, background): “Surprisingly, intense debate concerning the stability and dynamics of African rangelands has focused almost entirely on climatic variation and has ignored the potential importance of soil nutrient limitations (Ellis and Swift 1988, Ellis et al. 1993, Illius and O’Connor 1999, 2000, Oba et al. 2000).”
Relevance of rest periods in non-equilibrium rangeland systems - A modelling analysis (2007, result): “It is shown that measures targeted for the long term, such as resting a part of the pasture, may also be relevant in non-equilibriums systems (in contrast to a statement made by Oba et al. (2000)).”