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Rats on islands disrupt ecosystems from land to sea, researchers find
Date:2/25/2008

thor Holly Jones was an intern with Island Conservation as an undergraduate at UCSC and is now a graduate student at Yale University. Coauthors include Croll, Tershy, and Erika Zavaleta, assistant professor of environmental studies at UCSC.

"This is a large-scale analysis showing that rats have preyed on 75 species of seabirds in 10 families on islands throughout the world. The hardest hit seabirds are the small, hole-nesting species like petrels and auklets," Croll said.

The good news is that rats can be eradicated from islands. Island Conservation has led successful eradication efforts on islands off the coast of Mexico and on Anacapa Island, one of the Channel Islands off southern California, Croll said. Worldwide, rats have been removed from more than 274 islands, according to the Nature Conservancy.

"It's been done many times," Croll said. "What's interesting is the synergy between the research and the conservation efforts. Academic researchers tend to do studies and publish them, and then nothing happens. So it's very exciting for our students to see that their research can tie in directly with the conservation mission of a large organization like the Nature Conservancy."


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Contact: Tim Stephens
stephens@ucsc.edu
831-459-2495
University of California - Santa Cruz
Source:Eurekalert

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