Puni Jeyasingh, OSU Zoology, and Lawrence Weider, OU Zoology, received a $780,000 grant (OSU portion $414,000) from the National Science Foundation to examine the effects of long-term pollution on lake ecosystems. The two investigators will be examining how invertebrates in lakes evolve and adapt to the effects of the major nutrient pollution. They will be studying sediments from lakes in Canada and Minnesota and examining how phosphorus loading is affecting newer and older generations of invertebrates hatched from the sediments. This project is not only examining the effects of long-term pollution on aquatic ecosystems it is providing valuable information on how organisms evolve in natural environments. This project is an example of how expertise at different Oklahoma universities can unite and solve complex scientific questions.