Download or read book The Ecology of River Systems written by Bryan R. Davies and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our understanding of the ecology of running waters has come a long way during the past few years. From being a largely descriptive subject, with a few under tones concerned with such things as fisheries, pollution or control of blackflies, it has evolved into a discipline with hypotheses, such as the River Continuum Concept (Vannote et a/. 1980), and even a book suggesting that it offers opportunity for the testing of ecological theory (Barnes & Minshall 1983). However, perusal of the literature reveals that, although some of the very early studies were concerned with large rivers (references in Hynes 1970), the great mass of the work that has been done on running water has been on streams and small rivers, and information on larger rivers is either on such limited topics as fisheries or plankton, scattered among the journals, or not available to the general limnologist. The only exceptions are a few books in this series of publications, such as those on the Nile (Rz6ska 1976), the Volga (Morduckai Boltovskoi 1979) and the Amazon {Sioli 1984), and the recent compendium by Whitton (1984) on European rivers, among which there are a few that rate as large.
Download or read book Sustaining the World s Wetlands written by Richard Smardon and published by Springer Science & Business Media. This book was released on 2009-06-13 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wetlands throughout the world, including those described in this book are among the most sensitive and vulnerable ecosystems. They are critical habitats to the world’s migratory birds and a broad range of endangered mammal, reptile, amphibian, and plant species. They provide a broad range of flood storage, pollution control, water supply, ecotourism functions to indigenous peoples and country populations as a whole. They are also at the center of severe land and water use conflicts. These are conflicts between counties where wetland resources or the water supplies required for such resources involve more than one country. These are conflicts in use such as conflicts between habitat protection and charcoal production in mangroves. These are conflicts between groups of peoples such as indigenous peoples and hydropower advocates. Many wetlands have already been destroyed by water extractions, dams, levees, channelization, and fills. Others have been degraded by water pollution, overfishing and overhunting, timber harvest, and a host of other activities. This book describes these conflicts and international policies and institutions developed to protect and manage wetland resources. Most of the broader literature and other books on wetlands focuses on wildlife. Wildlife is described in the case studies, which follow. But, Richard Smardon provides us with more. He traces the history of conflicts and the development of policies and insti- tions to protect and manage wetland resources.
Download or read book The ecology and management of African wetland vegetation written by Patrick Denny and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Fossils in the Making written by Anna K. Behrensmeyer and published by University of Chicago Press. This book was released on 1988-02-15 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the first interdisciplinary discussions of taphonomy (the study of how fossil assemblages are formed) and paleoecology (the reconstruction of ancient ecosystems), this volume helped establish these relatively new disciplines. It was originally published as part of the influential Prehistoric Archeology and Ecology series. "Taphonomy is plainly here to stay, and this book makes a first class introduction to its range and appeal."—Anthony Smith, Interdisciplinary Science Reviews
Download or read book Sport Fishery Abstracts written by and published by . This book was released on 1976 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Epizootic Ulcerative Fish Disease Syndrome written by Devashish Kar and published by Academic Press. This book was released on 2015-08-06 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Epizootic Ulcerative Fish Disease Syndrome covers both the background and current information on the EUS disease relevant to fisheries and aquaculture delivered in a systematic and succinct way. The book is an essential resource for the aquaculture and fisheries researcher interested in finding solutions to the spread of the disease across the globe and students in relevant programs, including an in-depth description and analysis of the disease, as well as the structure and composition of the virus, while offering prevention and control methodologies. Clinical veterinarians, aquaculture disease practitioners, farmers, and those who are interested in aquatic virology will find this book to be a useful guide on the topic. - Examines different manifestations of the disease, and includes different methodologies of studies, such as histopathological, histochemical, bacteriological, mycological, virological, and enzymological - Provides background information describing fish as a significant food source and avocation, the diversity of fishes in the globe, and the panorama of diseases fish can be exposed to - Describes all major species affected by EUS and its pattern of spread, along with suggested strategies for control and prevention
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 1296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book River Basin Planning Principles written by UNESCO and published by UNESCO. This book was released on 2013 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Historical Dictionary of Zambia written by Bizeck Jube Phiri and published by Rowman & Littlefield. This book was released on 2023-08-15 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zambia is a nation with a long record of peace, that has enjoyed decades of constitutional rule, and even, in recent years, an increasingly competitive democracy. Peace, constitutionalism, democracy, and nationhood face constant challenges, such as in the elections of 2006 when the ugly language of ethnic confrontation found renewed currency. Moreover, Zambia's economic record and prospects are less equivocal: after over four decades, per capita incomes are lower than they were at the dawn of independence. Historical Dictionary of Zambia, Fourth Edition contains a chronology, an introduction, and an extensive bibliography. The dictionary section has more than 1,000 cross-referenced entries on important personalities as well as aspects of the country’s politics, economy, foreign relations, religion, and culture. This book is an excellent resource for students, researchers, and anyone wanting to know more about Zambia.
Download or read book Tropical Freshwater Wetlands written by H. Roggeri and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wetlands could be described as land and water at Tropical wetlands: one and the same time, and as such are very specific on the brink ecosystems. Their often rich variety of resources makes them highly valuable to the peoples who live With a few exceptions (like the Everglades in the or regularly stay in them. However, access to them United States), the last remaining large wetlands are to be found in developing countries. Perhaps this can is difficult and those unaware of their services be explained by insufficient financial resources, frequently associate wetlands with such nuisances and calamities as mosquitos, disease, floods, impen lower popUlation density or a different concept of etrable wastelands, etc. As a result these areas are development and well-being. Whatever the reasons, often perceived as obstacles to human development many tropical wetlands still exist and support the and well-being. subsistence of many communities. But for how much History reflects these two views. Wetlands may longer? have been the cradle of great civilizations (like the During the last few decades tropical wetlands Maya, Inca, Aztec, Nilotic and Mesopotamian have also been destroyed or considerably altered. Dams and embankments now prevent water from civilizations), but elsewhere their destruction allowed other societies to develop. For example the Nether spreading into the floodplains of several rivers, like lands literally 'emerged from the waters' thanks to the Senegal, Volta and Nile.
Download or read book Africare written by Penelope Campbell and published by Routledge. This book was released on 2017-07-05 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Africare is a US-based non-profit organization specializing in development aid for Africa. It is also the oldest and largest African-American led organization in the development field. Since its founding in 1970, Africare has delivered more than $710 million in assistance through over 2,500 projects to thirty-six African countries. The organization employs over 1,000 people, largely indigenous to the countries affected.This is a study in leadership and competing African and American black interests. Africare has sought to become the leading voice speaking on Africa within the US, a goal more difficult to attain than becoming the premier NGO in Africa. Sources of opinion and channels of expression about American policy in Africa are fragmented. They do not have name recognition or influential sponsors. There is poor coverage of African affairs in the US, except for key, often tragic, events. Africare has a heritage and has filled a niche in American society. Penelope Campbell argues that unless the organization reclaims these unique assets, it may lose the distinctiveness enabling its survival.The challenge for Africare is spreading its story and message. The author raises disturbing fundamental issues. Has foreign aid become such an industry that the patient is not allowed to get well? As the military cannot afford peace, it seems the world cannot afford the cessation of poverty. Campbell argues that success in Africa has been elusive not because of the failures of development organizations, but the magnitude of the issues involved. The author presents a convincing case for aid to Africa, the pitfalls involved, and for Africare's potential as a leader in meeting the continent's needs.
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Living Rock written by Arthur Wilson and published by Woodhead Publishing. This book was released on 1994 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book concentrates on the social and economic effects that metals have had on community life and on wider historical developments. It gives a fascinating perspective proclaiming that the history of metals is the history of civilization; basing the text on the results of archeometallurgists and materials scientists and looking at the advancement of societies as a direct result of their new-found technology. The author's clear and lucid style prevents the book becoming aridly academic while he maps the course of ancient history through to medieval times and beyond, showing metal to be, ultimately, the key to history.
Download or read book Heron Conservation written by James Anthony Kushlan and published by Helm. This book was released on 2000 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heron Conservation provides a comprehensive update following two distinct threads. The status and conservation needs of herons are first presented on a regional basis, in a series of chapters set at continental or subcontinental scale. Over 200 biologists and heron conservationists - many associated with the Heron Specialist Group sponsored by Wetlands International and IUCN - have contributed to the data summarised here and these very latest census and survey results provide the most up to date and detailed picture of heron populations currently available. Chapters discussing several critical issues in heron conservation follow, often focusing on the international nature of the problem. Many heron populations are migratory and depend upon conservation of both summer and wintering wetland habitats often located on different continents. Effective conservation of these wetlands of international importance depends in large part on local and regional socio-economic factors. Herons, to the extent that they require maintenance of wetland functioning, should be an integral part of sustainable wetland conservation. Features: * Fascinating insight into a topical issue * Beautiful colour pho
Download or read book Biodiversity Dynamics and Conservation written by C. Lévêque and published by Cambridge University Press. This book was released on 1997-05-13 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a comprehensive book on the biodiversity of one of the most diverse ecosystems known - tropical freshwater.
Download or read book Management Systems for Riverine Fisheries written by Thayer Scudder and published by Food & Agriculture Org.. This book was released on 1985 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper is concerned specifically with the problems of river fisheries and associated management issues. It deals in particular with the scope for building on traditional practices, through the participation of traditional fishing communities, as a means of improving the quality of river fishery management. The paper reviews the most frequently encountered problems of riverine fisheries such as over-fishing due to population pressure or migration, and artifically induced environmental factors such as dams, pollution and deforestation. It lays stress on the importance of studying fishing communities, as well as strictly biological factors, and presents a four-stage analysis of the evolution of traditional riverine fisheries. Several undesirable consequences of this typical evolution, both on the resource itself and on traditional fishing communities, are identified and illustrated by case studies from the Amazon and the Zambesi. Certain types of traditional management strategies are examined and assessed for their future utility. The current ineffectiveness of many existing government river fisheries management policies is noted, either as a result of lack of resources or because they are inappropriate, often rooted in outdated colonial legislation. The lack of both limited access measures and of participation by local fishing communities are highlighted as major deficiencies. The paper concludes by linking these two features as crucial components of durable river management strategies for the future, although other possibilities for management are also reviewed and assessed. The paper contains a comprehensive bibliography for further reading.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 1310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
