Selected Invited Lectures
"A Renaissance of Nitrogen Fixation Research." Granting Agency Conference at the Department of Microbiology, University of Helsinki, Helsinki, Finland. December 1983.
"Carbon Substrate Metabolism in Rhizobia." Symposium on Symbiotic Nitrogen Fixation sponsored by Allied Corporation, Syracuse, New York. June 1985.
"Carbon Substrate Metabolism Relative to the Ecology, Survival and Competition in Rhizobia." 6th International Symposium on Nitrogen Fixation, Corvallis, Oregon. August 1985.
"2089: Biological Science and Biotechnology in the Future." Three-lecture
series delivered at Pittsburg State University, Pittsburg, Kansas. 14 - 16
"Validation of Protocols for Assessing the Effectiveness of Commercial Bioremediation Agents for Oil Spills Using Open-Water Test Systems." Presented at U. S. EPA, United States of America--Israel Bioremediation Workshop, Nahsholim, Israel. 11 November 1992.
"Potential for Bioremediation of Oil-Contaminated Environments." Presented to Florida Independent Petroleum Producers' Association, Annual Meeting, Perdido Key, Florida. 24 September 1993.
"Effectiveness and Safety of Strategies for Oil Spill Bioremediation: Potential and Limitation." Presented at the U. S. Environmental Protection Agency's Annual Symposium on Bioremediation of Hazardous Wastes: Research, Development and Field Evaluations, San Francisco, California. 27 - 30 June 1994.
"Assessing Safety and Effectiveness of Oil Spill Bioremediation Strategies."
Special Seminar: Presented to visiting Japanese scientists from the University
of Tokyo and from Mitsubishi at the Gulf Ecology Division of U. S. EPA; Gulf
Breeze, Florida; 13 November 1996.
"Alternative Endpoints for Assessing Bioremediation Success: Special Considerations for Wetlands Ecosystems." Presented at the "Oil Spills in Coastal Marsh Ecosystems" workshop. Sponsored by the Louisiana Environmental Research Center, McNeese State University; 6 - 7 June 1996, Lake Charles, Louisiana.
"Effectiveness and Relative Toxicity of Biosurfactants." Presented at the "Oil Spills in Coastal Marsh Ecosystems" workshop. Sponsored by the Louisiana Environmental Research Center, McNeese State University; 6 - 7 June 1996, Lake Charles, Louisiana.
"Effectiveness and Safety of Biosurfactants as Agents in Oil Spill Response."
Presented to the 1997 International Oil Spill Conference. Ft. Lauderdale,
Florida. 7 - 10 April 1997.
"Role of Wetlands Microorganisms in Biogeochemical Cycling." Presented to the Escambia County League of Women Voters conference on Wetlands. Molino, Florida. 15 November 1997.
"Environmental Impact of Effluent from the Champion International Paper Mill." Presented to the Bay Area Resource Council; Pensacola, Florida. July 1998.
"Biodegradation of Polycyclic Aromatic Hydrocarbons (PAH) from Crude Oil in
Sandy-Beach Microcosms." Invited Biodegradation Symposium speaker, 8th International
Symposium on Microbial Ecology. Halifax, Nova Scotia, Canada. 9 - 14 August
"Effectiveness and Safety of Bioremediation Strategies for Oil Spills in Open-Water and on Sandy Beaches." Pensacola Bay System 2nd Annual Technical Symposium of the Bay Area Resource Council; Pensacola, Florida, 11 September 1998.
"Unconventional Patterns in the Biodegradation of Crude Oil by Indigenous Microbial Flora" presented to the Florida Association of Environmental Professionals, Northwest Chapter. 12 November 1999.
"Stormwater Runoff Issues and Solutions." Presented to the Santa Rosa County
Stormwater Runoff Task Force. March 2000.