Search Results: Returned 2 Results, Displaying Titles 1 - 2
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c2003, Lerner Call No: 577.6 4 09795 Availability:1 of 1 At Location(s) Series Title: Ecosystems in actionSummary Note: Explores the traits and characteristics of a river ecosystem, using the Columbia River Basin as an example. Discusses typical flora and fauna, and the impact that humans have on the river as well.
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c2003, Lerner Publications Call No: 577.3 09795 Availability:1 of 1 At Location(s) Series Title: Ecosystems in actionSummary Note: Describes the ecosystem of the Douglas fir, the old growth forests of the Pacific Northwest, the effects of human activities on them, and efforts to protect them.