Steward Pickett is distinguished senior scientist, Cary Institute of Ecosystem Studies, and director emeritus, Baltimore Ecosystem Study. Mary Cadenasso is professor of landscape and urban ecology, University of California, Davis. J. Morgan Grove is a social scientist with the USDA Forest Service. Elena Irwin is professor of environmental economics, Ohio State University. Emma Rosi is senior scientist, Cary Institute of Ecosystem Studies, and director, Baltimore Ecosystem Study. Christopher M. Swan is professor of ecology, University of Maryland, Baltimore County.