David Policansky is associate director of the Board on Environmental Studies and Toxicology at the National Research Council, where he directs studies on applied ecology and natural resource management. He is a member of the Ecological Society of America and its Sustainable Biosphere Initiative Steering Committee, and of the American Fisheries Society, and chairs the advisory councils to the University of Alaska's School of Fisheries and Ocean Sciences and the University of British Columbia's Fisheries Centre. His interests include genetics, evolution, and ecology, and he is known to be the ex...