News FocusConservation Biology

When Protecting One Species Hurts Another

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Science  21 Jul 2000:
Vol. 289, Issue 5478, pp. 383-385
DOI: 10.1126/science.289.5478.383

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SWAN VALLEY, MONTANA-- Biologists studying whether providing habitat for one wide-ranging species would protect another--the so-called umbrella effect--have found limited overlap between prime grizzly habitat and that of threatened fish, and grizzly conservation programs here may even be hurting the fish. Researchers are now grappling with how best to conserve habitat for multiple species.

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