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Discovery
Even in the Desert, Plants Feel the Heat of Global Warming

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Photo of Eriophyllum lanosum, a desert winter annual.

Eriophyllum lanosum, one of the desert winter annuals that Larry Venable, an ecologist at the University of Arizona in Tucson, and his collaborators monitored for 26 years. The photo was taken in March 2008.

Credit: Jonathan Horst


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Photo of Kathy Gerst operating a device that measures photosynthetic gas exchange parameters.

Graduate student Kathy Gerst works at the study's field site, the Desert Laboratory on Tumamoc Hill in Tucson, Ariz. She is operating a LI-COR 6400, which measures photosynthetic gas exchange parameters, near creosote bushes in the Sonoran Desert.

Credit: Greg Barron-Gafford, University of Arizona


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