th and survival, but also its reproductive success, which can be detected through genetic markers. They also will quantify the expansion and evolution of the guppies; the associated changes in Hart's killifish and other organisms in the community; and the changes in nutrient availability. Reznick and his colleagues will use these results to develop mathematical models to evaluate the feedback between the evolution of guppies and Hart's killifish and the remainder of the ecosystem.

NSF's FIBR program supports integrative research that addresses major questions in the biological sciences. It encourages investigators to identify major understudied or unanswered questions in biology and to use innovative approaches to address them by integrating the scientific concepts and research tools from across disciplines, including biology, mathematics and the physical sciences, engineering, social sciences and the information sciences.

"FIBR provides the support necessary to allow scientists to tackle the most challenging questions in biology," said Alan Tessier, FIBR program officer. "This award is exemplary in meeting the FIBR goals. It is a highly collaborative and multi-institutional project that promises to experimentally and conceptually link ecosystem ecology with coevolutionary processes in natural systems."

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Contact: Iqbal Pittalwala
iqbal@ucr.edu
951-827-6050
University of California - Riverside
6-Oct-2006


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