1. Graduate Student, Dept. of Agricultural and Biological Engineering, P.O. Box 110570, Gainesville, FL 32611.
2. Professor, Dept. of Agricultural and Biological Engineering, Univ. of Florida; and Director, Center for Landscape Conservation and Ecology, Univ. of Florida, P.O. Box 110570, Gainesville, FL 32611 (corresponding author).
3. Professor, Dept. of Statistics, Institute of Food and Agricultural Sciences, Univ. of Florida, Gainesville, FL 32611.
4. Former Graduate Student, Dept. of Statistics, Institute of Food and Agricultural Sciences, Univ. of Florida, Gainesville, FL 32611.