1985-1986 Researcher, Iowa Chapter, The Nature Conservancy, for population ecology study of Lespedeza leptostachya at the Freda Haffner Kettlehole State Preserve. 1985 Researcher, Sanchini BioResearch, Inc. for Shenandoah National Park Forest Mortality Studies. 1984-1986 Researcher, independent Environmental Impact Statement for Marion Bypass Project on the 30th Street Woods. 1983-1987 Curator, Coe College vascular plant herbarium. Wisconsin Department of Natural Resources, 1996.
Unique land snail faunas of the upper Lake Michigan basin.
Wisconsin Chapter of The Nature Conservancy, 1996. Ecology of glacial relict snails on the Niagara Escarpment in Brown County, Wisconsin. Louis Almon Fund, 1995. The land snail fauna of northern Door County natural areas. Wisconsin Chapter, The Nature Conservancy, 1995.