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Caption: This shows Kristin Powell measuring out a study plot of Dianella ensifolia, cerulean flax lily, at Highlands Hammock State Park in Florida. This image relates to a paper that appeared in Jan. 18, 2013, issue of Science, published by AAAS. The paper, by Kristin Powell at Washington University in St. Louis in St. Louis, Mo., and colleagues was titled, "Invasive Plants Have Scale-Dependent Effects on Diversity by Altering Species-Area Relationships."
Credit: [Image courtesy of Jessica Powell]
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