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Peter Petraitis, Professor of Biology, University of Pennsylvania, USA
Peter Petraitis is a Professor of Biology at the University of Pennsylvania and an ecologist known for his work in rocky intertidal shores in Maine where he has been working since 1981. He also works in Mongolia studying the impacts of climate change and nomadic herding on steppe grasslands in Lake Hovsgol National Park. Professor Petraitis received his Ph.D. in ecology from Stony Brook University in 1979 and was a postdoctoral scholar at Woods Hole Oceanographic Institution before joining the faculty at the University of Pennsylvania.