The interdisciplinary nature of limnology requires lucid and well-integrated coverage of biology, chemistry, physics, earth science, and resource management. Paul Weihe skillfully accomplishes this objective in his revision of Gerald Cole’s classic limnology text. This long-awaited revision introduces concepts in straightforward terms, replete with detailed examples, elegant illustrations, and up-to-date, well-researched documentation. Outstanding features of the fifth edition include: • A global outlook with examples from every continent • Discussions of the impact of environmental challenges (e.g., climate change, eutrophication, river regulation) with case studies of real-world examples • A chapter devoted to wetlands • A thorough examination of biogeochemistry, including recent anthropogenic alteration and a reconsidered understanding of stoichiometric relationships • Expanded treatment of hydrology, utilizing empirical approaches to discharge determination and effects of land-use changes • A reorganized presentation of biodiversity, explicitly correlating profiles of biota with community ecology and ecosystem function • Updated taxonomy with a description of the new metagenomic approach, nomenclature strictly adhering to the intergovernmental Integrated Taxonomic Information System
Addressing ecologists, legislators, lawyers, and industrialists alike, Ruth Patrick asks what has been accomplished with the millions of dollars spent on upgrading our surface waters. Has the water improved in spite of the fact that the crayfish, snails, and algae are not those that one would expect to find in natural rivers and estuaries? To evaluate the success of environmental laws over the past two decades, the author examines the aquatic life of river systems in the Delaware Valley, Texas, and Georgia--the only areas in the United States where she found enough biological data to determine trends over time. Although tracing the impact of environmental laws is difficult, Patrick found that for these three water systems the results were generally positive. However, if society as a whole wants effective environmental legislation, organizations must take on a more systematic and orderly approach to data gathering. Patrick argues that in monitoring the waters, one must study protozoa, algae, and worms as well as fish, oysters, and shrimp; one must track amounts of metal as well as low concentrations of oxygen. In proposing options for the future, the author predicts that the cost of such monitoring will be higher than present expenditures, but the cost of lax control will be even greater. Originally published in 1992. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Provides a concise, current and accessible overview of running water systems. The book's unifying focus is on rivers and streams as ecosystems in which the particular identity of organisms is not the main emphasis but rather the processes in which they are involved - specifically energy flow and the cycling of materials.
The aim of this book is to provide an accessible, up-to-date introduction to stream and river biology. Beginning with the physical features that define running water habitats, the book goes on to look at these organisms and their ecology.
It is generally recognized that where earthworms are abundant they can exert significant influence on the structure and function of soils. Compared to other biogeographic regions of Earth, however, surprisingly little is known about the earthworm fauna of the western hemisphere and their role in soil processes. This book is the first comprehensive review and analysis of the state of understanding of earthworm biogeography and ecology in North America. Topics of in-depth discussion include earthworm systematics, biogeography and ecology, influences on soil structure and ecosystem nutrient dynamics, and implications for ecosystem management. Each chapter provides a general review and statement of current understanding, an assessment of current research problems, recent developments and advances, and priorities for future research and applications. This book is a must for researchers and students studying the soil-related facets of terrestrial ecology.
Dissatisfied with the state of in public education, a small group of Halifax parents and university professors banded together in September 1958 to found a school of their own. Paul Bennett tells the story of the Halifax Grammar School in this illustrated history. Bennett describes the many larger-than-life personalities and the ebbs and flows of the school¿s development over the past fifty years. In recent years the School has enjoyed a resurgence, expanding to acquire the historic Tower Road School, and doubling in student population. This illustrated book explores how the Grammar School has influenced education in Nova Scotia by challenging the standards and practice and offering an alternative to the public system.
Best known for his notorious 'Rivers of Blood' speech in 1968 and his outspoken opposition to immigration, Enoch Powell was one of the most controversial figures in British political life in the second half of the twentieth century and a formative influence on what came to be known as Thatcherism. Telling the story of Powell's political life from the 1950s onwards, Paul Corthorn's intellectual biography goes beyond a fixation on the 'Rivers of Blood' speech to bring us a man who thought deeply about - and often took highly unusual (and sometimes apparently contradictory) positions on - the central political debates of the post-1945 era: denying the existence of the Cold War (at one stage going so far as to advocate the idea of an alliance with the Soviet Union); advocating free-market economics long before it was fashionable, while remaining a staunch defender of the idea of a National Health Service; vehemently opposing British membership of the European Economic Community; arguing for the closer integration of Northern Ireland with the rest of the UK; and in the 1980s supporting the campaign for unilateral nuclear disarmament. In the process, Powell emerges as more than just a deeply divisive figure but as a seminal political intellectual of his time. Paying particular attention to the revealing inconsistencies in Powell's thought and the significant ways in which his thinking changed over time, Corthorn argues that Powell's diverse campaigns can nonetheless still be understood as a coherent whole, if viewed as part of a long-running, and wide-ranging, debate set against the backdrop of the long-term decline in Britain's international, military, and economic position in the decades after 1945.
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