作者单位:
Iowa State Univ, US Geol Survey, Iowa Cooperat Fish & Wildlife Res Unit, Ames, IA 50011 USA.
[1]
Wisconsin Dept Nat Resources, Bur Sci Serv, Madison, WI 53716 USA.
[2]
Univ Montana, Wildlife Biol Program, Missoula, MT 59812 USA.
[3]
Dakota State Univ, Coll Arts & Sci, Madison, SD 57042 USA.
[4]
US Fish & Wildlife Serv, Habital & Populat Evaluat Team, Bismarck, ND 58501 USA.
[5]
Vermont Ctr Ecostudies, Norwich, VT 05055 USA.
[6]
Univ Wisconsin, Dept Forest & Wildlife Ecol, Wisconsin Cooperat Wildlife Res Unit, US Geol Survey, Madison, WI 53706 USA.
[7]
Illinois Chapter Nat Conservancy, Peoria, IL 61602 USA.
[8]
Prairie & No Wildlife Res Ctr, US Geol Survey, St Paul, MN 55108 USA.
[9]
发布时间
2013-11-20