Download or read book Lake Chilwa written by M. Kalk and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leonard C. Beadle In contrast to the more sta bie oceans, inland waters are, on the geological time scale, short-lived and are subject to great fluctuations in chemical composition and physical features. Very few lakes and rivers have existed continuously for more than a million years, and the life of the majority is to be measured in thousands or less. Earth movements, erosion and long-term climatic changes in the past have caused many of them to appear and disappear. No wonder then that most freshwater organism are especially adapted to great changes and many even to temporary extinction of their environment. Recent studies of residual sediments from existing and extinct lakes in tropical Africa have told us much about their age and the past history of their faunas and floras, from which we may deduce something about the climate and the conditions in the water in the past. The forces that have formed and moulded the African Great Lakes have been catastrophic in their violence and effects. They are not yet finished, but the present rate of change is, in human terms, too slow for direct observation of the ecological effects. The large man-made lakes are providing very good opportunities for studying the chemi cal and biological consequences of the initial filling but, once filled, they are artificially protected against major fluctuations.
Download or read book Social and Ecological System Dynamics written by Krystyna Stave and published by Springer. This book was released on 2018-07-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a social—ecological system description and feedback analysis of the Lake Tana Basin, the headwater catchment of the Upper Blue Nile River. This basin is an important local, national, and international resource, and concern about its sustainable development is growing at many levels. Lake Tana Basin outflows of water, sediments, nutrients, and contaminants affect water that flows downstream in the Blue Nile across international boundaries into the Nile River; the lake and surrounding land have recently been proposed as a UNESCO Biosphere Reserve; the basin has been designated as a key national economic growth corridor in the Ethiopian Growth and Transformation Plan. In spite of the Lake Tana Basin’s importance, there is no comprehensive, integrated, system-wide description of its characteristics and dynamics that can serve as a basis for its sustainable development. This book presents both the social and ecological characteristics of the region and an integrated, system-wide perspective of the feedback links that shape social and ecological change in the basin. Finally, it summarizes key research needs for sustainable development.
Download or read book Wetlands of Ethiopia written by Kim Geheb and published by IUCN. This book was released on 2003 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Descriptive and Phylogenetic Analysis of Plumulaceous Feather Characters in Charadriiformes written by Carla J. Dove and published by . This book was released on 2000 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Guide to the Birds of the Philippines written by Robert Kennedy and published by Oxford University Press. This book was released on 2000-09-21 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: '... it is hoped that this book will 'Kick-start' interest in the Philippine's birds, both at home and abroad, before it is too late' Birding World
Download or read book Classification of Natural Ponds and Lakes in the Glaciated Prairie Region written by Robert E. Stewart and published by . This book was released on 1971 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Birds of the Horn of Africa written by Nigel Redman and published by A&C Black. This book was released on 2009-05-11 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first field guide to the birds of this varied and fascinating region and a companion to Birds of East Africa by two of the same authors.
Download or read book Classification of Wetlands and Deepwater Habitats of the United States written by U.S. Fish and Wildlife Service and published by . This book was released on 1979 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wetland Modelling written by W.J. Mitsch and published by Elsevier. This book was released on 2012-12-02 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of wetlands is a relatively new field and the modelling of these systems is still in its formative stages. Nevertheless, the editors felt compelled to assemble this volume as a first statement of the state of the art of modelling approaches for the quantitative study of wetlands. A global approach has been adopted in this book, not only by including a wide geographic distribution of wetlands, but also by including papers on both freshwater and saltwater wetlands. Wetlands are defined as systems intermediate between aquatic and terrestrial ecosystems, and include ecosystems under a wide range of hydrologic and ecologic conditions. The wetland types discussed in this book reflect that heterogeneity, ranging from intermittently flooded wet meadows to permanently flooded shallow reservoirs and lakes. Also included are modelling examples from coastal salt marshes, shallow estuaries, mesotrophic bogs, reedswamps, forested swamps, and regional wetlands. In summary, the book presents ecological modelling as a tool for management of these sensitive ecosystems, and for studying their structure and function. Each chapter has extensive references related to the modelling approach and wetland type discussed. It will be useful for wetland scientists and managers, and could also serve as a supplemental text on courses in wetland ecology.
Download or read book The Canadian Wetland Classification System written by and published by . This book was released on 1987 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: A classification system for Canadian wetlands based on the collective expertise and research of scientists across Canada. The system is provisional and subject to revision in future editions.
Download or read book The Inland Waters of Tropical Africa written by Leonard C. Beadle and published by Longman Publishing Group. This book was released on 1974 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Economic Valuation of Wetlands written by Edward Barbier and published by . This book was released on 1997 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Project Aqua written by International Union for Conservation of Nature and Natural Resources and published by Wiley-Blackwell. This book was released on 1971 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Nile Sharing a Scarce Resource written by J. A. Allan and published by Cambridge University Press. This book was released on 1994-07-14 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines the environmental element of managing the international water resource of the Nile.
