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The book presents an analysis of the ecological, economic and social threats posed by the introduction and spread of non-native species.

This book presents current knowledge of seed fate in both natural and human-disturbed landscapes, from various regions of the world. Habitats considered range from mountain and arid deserts in the temperate zone, to savanna and lowland rainforests in tropical regions of the world. Particular attention is paid to plant diversity conservation when seed removal is affected by factors such as hunting, habitat fragmentation or intensive logging. Contributors include leading scientists involved in research on seed ecology and on animal-plant relationships from the perspective of both primary and...

This book reveals a dynamic picture of African rural society in which production patterns change rapidly in response to market opportunities. These changes are driven largely by local farmers' initiatives, and are often associated with an increase in market-based access to land that is evident under both customary and private land tenure. North America: Africa World Press