“Urban landscapes and the West Nile virus in the U.S. Upper Midwest” presented at the International Medical Geography Symposium, July 2005, Fort Worth, TX.
“Patterns of persistence and change: West Nile virus and St. Louis encephalitis in Cook and DuPage County, Illinois, in 1975 and 2002” presented the Association of American Geographers Annual Meeting, April 2005, Denver, CO.
Invited speaker, “Spatial mapping and data collection for a WNV disease ecology study”, Illinois Mosquito and Vector Control Association Meeting, November 2004, Champaign, Illinois.
“West Nile Virus Risk in Illinois” presented at the GISVet 04 Conference, June 2004, Guelph, Ontario.
"Spatial and Space-time Clusters of West Nile Virus in Illinois, 2002", 41st Annual Conference of the Urban and Regional Information System Association, October 2003, Atlanta, Georgia.
"Cultural Resource Management on a Military Installation – from Database to Modeling", 41st Annual Conference of the Urban and Regional Information System Association, October 2003, Atlanta, Georgia.
"Vector-borne diseases in the north central US: from malaria to Lyme disease and West Nile Virus", presented at the Chapman Conference on Ecosystem Interactions with Land Use Change, June 2003, Santa Fe, New Mexico.
“Mapping and Analysis of West Nile Virus in Illinois”, 40th Annual Conference of the Urban and Regional Information System Association, October 2002.
“A Local Department of Public Health and the Geospatial Data Infrastructure”, 40th Annual Conference of the Urban and Regional Information System Association, October 2002.
“Geostatistics for an Archeological Site Potential Model”, ESRI International User Conference, July 2002.
Invited paper “Geospatial Infrastructure and Utility in Response to Bioterrorism” prepared for the workshop: The Geographical Dimensions of Terrorism: A Research Agenda for the Discipline, Association of American Geographers and National Science Foundation, January 2002.
Contributed to “Cricket Frog (Acris crepitans) Sexual Differentiation, A Spatial Historical Survey”. Beasley et al. Society of Environmental Toxicology and Chemistry
22nd Annual Meeting, Baltimore, MD, Nov 2001.
“The Future of Urban Geography” Panel Presentation. Annual Meeting of the Association of American Geographers, New York, NY 27 Feb – 3 Mar, 2001.
“Y2K and the End of GIS as We Know It?” Annual Meeting of the Association of American Geographers. Pittsburg, PA. 6-8 Apr 2000
“Geospatial Data Repository Design”. CAD/GIS Symposium. St. Louis, MO. 24-26 May 2000.