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Cara J

Birds adapt to novel ecosystems across the world

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Conservationists have long called for restoring landscapes as much as possible to the way they were before humans altered them, but they’ve started embracing the idea that nonnative plants can sometimes help sustain native wildlife. Looking at two of these novel ecosystems, the grasslands of Oregon and the city gardens of Australia, researchers recently demonstrated that endemic birds take advantage of the resources offered by the nonnative vegetation comprising these modified habitats. “This is not rocket science,” said Patricia Kennedy, first author on the study published in Ecosphere. “Some animals utilize nonnative vegetation. Some do not. We need to think more critically about restoration priorities. Some nonnative plants are providing resources for birds, and the birds are doing fine.” To test the prediction that native wildlife use novel ecosystems when they provide structure and resources similar to the original habitat, Kennedy, a professor with Oregon State University’s Department of Fisheries and Wildlife, and her collaborators looked at breeding birds in two habitats. They examined how plant origin and vegetation structure related to nesting success on the vast Zumwalt Prairie Preserve in northeastern Oregon and to the presence of birds in 2,000 gardens across the western Australian city of Perth. As [...]

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