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Author Rapp, Valerie.
Title Life in a river / Valerie Rapp.
Pub Info Minneapolis : Lerner Publications Co., c2003.
book jacket
 Bourne-Children's Room  J 577.64 RAP     AVAILABLE
Descript 72 p. : ill. (some col.), col. maps ; 26 cm.
Series Ecosystems in action
Ecosystems in action.
Note Accelerated Reader MG 7.4 2 2 67210
Bibliog. Includes bibliographical references (p. 67-68) and index.
Summary Go on a journey that begins in small mountain streams and passes through large rivers to the ocean. Using the Columbia River Basin as an example, Life in a River examines the physical features, processes, and many different species of plants and animals that make up a unique river ecosystem. Find out about the impact of humans on this once-pristine ecosystem and what is being done to save it. Follow the river on its amazing journey and learn what makes it so special.
Contents What is an ecosystem? -- Columbia River ecosystem; a natural history -- In the mountains; streams -- Coming out of the mountains; medium-sized rivers -- In the valleys; large rivers -- Wild salmon; a keystone species -- People and the Columbia River basin -- What you can do.
Subject Stream ecology -- Columbia River Watershed -- Juvenile literature.
Columbia River Watershed.
Stream ecology.
ISBN 0822521369 (lib. bdg. : alk. paper)
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