1. Former Graduate Research Assistant, Agricultural and Biological Engineering Dept., Univ. of Florida, 1741 Museum Rd., P.O. Box 110570, Gainesville, FL 32611-0570.
2. Professor, Agricultural and Biological Engineering Dept., Director, Center for Landscape Conservation and Ecology, Univ. of Florida, 1741 Museum Rd., P.O. Box 110570, Gainesville, FL 32611-0570 (corresponding author).
3. Professor and Associate Center Director, Gulf Coast Research and Education Center, Univ. of Florida, 14625 CR 672, Wimauma, FL 33598.
4. Courtesy Faculty Appointment from Hochshule Osnabrück, Univ. of Applied Sciences at Agricultural and Biological Engineering Dept., Univ. of Florida, 1741 Museum Rd., P.O. Box 110570, Gainesville, FL 32611-0570.