News of the WeekEcology

Yosemite: Protected but Not Preserved

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Science  02 May 2008:
Vol. 320, Issue 5876, pp. 597
DOI: 10.1126/science.320.5876.597a

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Two researchers have traced the decline of the California black oak in Yosemite National Park through a complex chain of effects that starts with human influence and extends from cougars through mule deer to oaks and primroses.