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Intended for biology and environmental sciences students, this study of lake systems covers the physics, chemistry and biology of lakes. The text includes ecosystem examples to illustrate basic concepts in limnology. The examples are drawn from all over the world - Africa, the Americas, Antarctica, the Arctic, Europe, Japan and New Zealand. This wide array of examples allows the authors to point out marked differences in size, basin shape, climate and biota, while illustrating a unity of principles in limnology. The number of topics is limited so that major subjects - such as physical conditions within lake systems, applications to the LIST environment, and the success of big rivers, streams and estuaries - can be covered in more depth.
Introduces readers to the intriguing world of freshwater life.
Discusses the biochemical and geological cycling of selenium (Se), its worldwide distribution, and the factors controlling its fate and transport within and between major environmental media, presenting a global assessment of selenium's complex environmental behaviour. The focus of this work is upon Se management and remediation strategies.
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
From the cliffs of Big Sur to the dunes at Cape Hatteras, from the bogs of the Boundary Waters to the deserts of the Rio Grande, the landscape of America has shaped us into the people we are. Not only is it central to ecological health and essential to the economy, it has helped form our culture and serves as a basis of national pride. The heart of America lies in the rock and soil, the mountains and the plains that surround us.In this illuminating portrait of America at the threshold of the new millennium, author Tim Palmer explores and assesses the landscape of the United States -- both timeless wonders of natural beauty and lost places scarred by human exploitation. He takes the reader on...
This is the first comprehensive environmental history of California’s Great Central Valley, where extensive freshwater and tidal wetlands once provided critical habitat for tens of millions of migratory waterfowl. Weaving together ecology, grassroots politics, and public policy, Philip Garone tells how California’s wetlands were nearly obliterated by vast irrigation and reclamation projects, but have been brought back from the brink of total destruction by the organized efforts of duck hunters, whistle-blowing scientists, and a broad coalition of conservationists. Garone examines the many demands that have been made on the Valley’s natural resources, especially by large-scale agriculture, and traces the unforeseen ecological consequences of our unrestrained manipulation of nature. He also investigates changing public and scientific attitudes that are now ushering in an era of unprecedented protection for wildlife and wetlands in California and the nation.