| Description |
72 pages : illustrations (some color), color maps ; 26 cm. |
| Series |
Ecosystems in action |
|
Ecosystems in action.
|
| Bibliography |
Includes bibliographical references (pages 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. |
| Study Program |
Accelerated Reader AR MG 7.4 2.0 67210. |
| Subject |
Stream ecology -- Columbia River Watershed -- Juvenile literature.
|
|
Columbia River Watershed.
|
|
Stream ecology.
|
|
Ecology.
|
| ISBN |
0822521369 library binding alkaline paper |
|
