Hobbs, Richard J; Cole, David N; Yung, Laurie; Zavaleta, Erika S; Aplet, Gregory H; Chapin, F Stuart; Landres, Peter B; Parsons, David J; Stephenson, Nathan L; White, Peter S; Graber, David M; Higgs, Eric S; Millar, Constance I; Randall, John M; Tonnessen, Kathy A; Woodley, Stephen