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S'està carregant… Disconnected Rivers: Linking Rivers to Landscapesde Ellen Wohl
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This important and accessible book surveys the history and present condition of river systems across the United States, showing how human activities have impoverished our rivers and impaired the connections between river worlds and other ecosystems.Ellen Wohl begins by introducing the basic physical, chemical, and biological processes operating in rivers. She then addresses changes in rivers resulting from settlement and expansion, describes the growth of federal involvement in managing rivers, and examines the recent efforts to rehabilitate and conserve river ecosystems. In each chapter she focuses on a specific regional case study and describes what happens to a particular river organism-a bird, North America's largest salamander, the paddlefish, and the American alligator-when people interfere with natural processes. No s'han trobat descripcions de biblioteca. |
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Google Books — S'està carregant… GèneresClassificació Decimal de Dewey (DDC)577.6Natural sciences and mathematics Life Sciences, Biology Ecology Aquatic ecology, Freshwater ecologyLCC (Clas. Bibl. Congrés EUA)ValoracióMitjana: Sense puntuar.Ets tu?Fes-te Autor del LibraryThing. |