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A study of the flowering plant flora of West Africa south of the Sahara with the emphasis upon species of ecological or economic importance.
Review of tropical dry forest biogeography, palaeontology, ecology and ecosystem functions.
Invasive alien species are a major threat to biodiversity and ecosystems throughout the world. In India, a country with four of the world's most important 'biodiversity hotspots', the invasion of alien plants means risking a national ecological disaster with major social and economic consequences. Currently, there is insufficient information about invasive alien plants; their distribution, rate of spread and adaptability to new environments. This book reveals existing and potential invaders, evaluates the level of risk they pose to native species and suggests steps to manage spread and limit damage. Invaluable to policy-makers, this book is also required reading for researchers of invasive plants worldwide.
While the diffusion of modernity and the spread of development schemes may bring prosperity, optimism and opportunity for some, for others it has brought poverty, a deterioration in quality of life and has given rise to violence. This collection brings an anthropological perspective to bear on understanding the diverse modernities we face in the contemporary world. It provides a critical review of interpretations of development and modernity, supported by rigorous case studies from regions as diverse as Guatemala, Sri Lanka, West Africa and contemporary Europe. Together, the chapters in this volume demonstrate the crucial importance of looking to ethnography for guidance in shaping development policies. Ethnography can show how people's own agency transforms, recasts and complicates the modernities they experience. The contributors argue that explanations of change framed in terms of the dominantdiscourses and institutions of modernity are inadequate, and that we give closer attention to discourses, images, beliefs and practices that run counter to these yet play a part in shaping them and giving them meaning. Anthropology, Development and Modernities deals with the realities of people's everyday lives and dilemmas. It is essential reading for students and scholars in anthropology, sociology and development studies. It should also be read by all those actively involved in development work.
Interest in the biology of African 'wetlands' was initiated in the last century with the hypothesis that Lake Tanganyika was once part of a Jurassic sea, and was furthered by Cunnington's expedition at the beginning of this century which proved that it was not. In the late 1920's, ecological studies, encouraged by the growing importance of inland fisheries, were started hy British, French and Belgian biologists. Some twenty years later several government limnological research centres and fishery departments were established in tropical Africa, and scientific progress was accelerated. Scientific collaboration between the regions south of the Sahara was started formally in 1951 by the Scientific Council for Africa and stimulated by the International Biological Programme (1964-74) with its emphasis on biological productivity. Some of its interests were takcn on by SCOPE which recently selected continental wetlands as a Special Project; hence this book. The five authors, with-Patrick Denny as editor, have made a very valuable contribution both to science and to thc management of Africa's natural rcsourccs: thcy have filled a gap in the synthesis of knowledge about Africa's environments which is long overdue. The term 'wetland' is used today in several different contexts. For this purpose, it excludes the seas and large open inland waters. which are too deep for rooted plants, but includes the huge areas of floodplains and dambos which may change seasonally from standing water to very dry lands.
Colobine monkeys have a unique digestive system, analagous to that of ruminants, which allows them to exploit foliage as a food source. This gives them a niche in Old World forests where they are often the only abundant medium-sized arboreal folivorous mammal. From a possible Miocene origin, Colobine monkeys have radiated into a wide variety of forms inhabiting a range of tropical woodlands in Africa and Asia. Most of the extant species have been subject to long term field studies, but until this book, no synthesis of work on this group has been available. The central theme of is that of adaptive radiation, showing how the special features of colobine anatomy interacted with a range of ecosystems to produce the distinctive species of today. The book discusses parallels with other mammalian groups, and will be of relevance to workers in evolutionary ecology, primatology and tropical ecology.
Africa is a fire continent. Since the early evolution of humanity, fire has been harnessed as a land-use tool. Many ecosystems of Sub-Sahara Africa that have been shaped by fire over millennia provide a high carrying capacity for human populations.