1. Department of Natural Resources and Environmental Sciences University of Illinois 1102 S. Goodwin Urbana Illinois 61801 USA
2. Fort Hood Natural Resources Management Branch United States Army Garrison Building 1939 Rod & Gun Club Loop Fort Hood Texas 76544 USA
3. Engineer Research and Development Center United States Army Corps of Engineers 2902 Newmark Drive Champaign Illinois 61822 USA
4. Illinois Natural History Survey University of Illinois 1816 S. Oak Street Champaign Illinois 61820 USA