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Reptiles and Amphibians

Reptiles and Amphibians

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  1. An analysis of the population dynamics of selected avian species

    The impact that pesticides may have had on the mortality rates and productivity rates of non-game birds during the last 25 years was evaluated by studying the population dynamics of 16 species. A mathematical...

  2. Summary of information on aquatic biota and their habitats in the Willamette Basin, Oregon, through 1995

    This report reviews and summarizes available information on aquatic biological communities in the Willamette Basin through 1995. Specifically, the report describes (1) the distribution, abndance, and trends of...

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