Pengarang: Jim Kraus

Michael C. Runge is a research ecologist at the United States Geological Survey (USGS) Patuxent Wildlife Research Center. Sarah J. Converse is the unit leader of the USGS Washington Cooperative Fish and Wildlife Research Unit and an associate professor at the University of Washington. James E. Lyons is a research ecologist at the USGS Patuxent Wildlife Research Center. David R. Smith is a research statistician at the USGS Leetown Science Center.