1. a Kansas Applied Remote Sensing (KARS) Program , University of Kansas , 2291 Irving Hill Road, Lawrence, Kansas, 66045-2969, USA
2. b Kansas Biological Survey , University of Kansas , 2401 Constant Ave, Lawrence, Kansas, 66045-2969, USA
3. c Department of Animal Ecology , Iowa State University , 124 Science II, Ames, Iowa, 50011, USA