1. 1Department of Earth and Environmental Sciences, University of Kentucky, 101 Slone Building, Lexington, KY 40506-0053; alan.fryar@uky.edu
2. 2Smith Management Group, Inc., 1405 Mercer Road, Lexington, KY 40511
3. 3Hancock Biological Station, Murray State University, 561 Emma Drive, Murray, KY 42071