Farmer-herder conflicts are enduring features of social life in the Sudano-Sahelian zone.

A survey was carried out between August and December 2004 in four sites in Niger,

namely Bokki, Katanga, Sabon Gida and Tountoubé to determine the proximate and

long-term causes of conflict over natural resource use, to evaluate the appropriateness of

existing institutional arrangements for managing conflicts and identify innovative options

and incentives to reduce the incidence and severity of conflicts. The research was

This essay argues that an awareness of the historical relation- ships among land use, land tenure, and the political economy of Mongolia is essential to understanding current pastoral land use patterns and policies in Mongolia. Although pastoral land use patterns have altered over time in response to the changing political economy, mobility and flexibility remain hallmarks of sustainable grazing in this harsh and variable climate, as do the communal use and management of pasturelands.

All eastern Africa is in the tropics, but its grasslands cover a very wide range of altitudes. Extensive grasslands are mostly in arid and semi -arid zones. The area is subject to droughts and a high degree of pastoral risk. Potential vegetation is largely desert and semi-desert, bush and woodland, with only a small area of pure grassland, but the grass -dominated herbaceous layer of the other formations is very important for wildlife and livestock; 75 percent of eastern Africa is dominated by grasslands, often with a varying amount of woody vegetation.