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Browsing Natural Resources by Subject "Ultrasonic frequencies"

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Browsing Natural Resources by Subject "Ultrasonic frequencies"

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  • Thomas, Donald W.; West, Stephen D.; Pacific Northwest Research Station (Portland, Or.) (Portland, Or. : U.S. Dept of Agriculture, Forest Service, 1989-09)
    Bats represent the second most diverse group of mammals inhabiting the western slopes of the Cascade Range in southern Washington and Oregon Coast Range. Bat populations may well be sensitive to changes in forest age, st ...

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