Ph.D. 1969 Cornell University My research emphasis has concentrated on the ecology of predator-prey and parasitoid-host interactions and application of this to biological control. Recent projects have included stochastic modeling of spider-mite predator-prey interactions and biological control of purple loosestrife with chrysomelid beetles. My current efforts are focused on assessing environmental impacts of forest management on diversity of selected insect groups (beetles and Macrolepidoptera); the experimental manipulations are prescribed surface fires and oil pipeline installation and maintenance. I am also involved in insect conservation, currently reintroducing the federally endangered American burying beetle to its former haunts in Ohio. I have taught introductory entomology, forest entomology, pest management and biological control, and I have managed the departmental softball and bowling teams. In my spare time I engage in birdwatching, model railroading, winemaking and music. (I sing tenor with two community groups, and play clarinet.)
SELECTED PUBLICATIONS:
Horn, D. J. 1999. IPM practices for reducing pesticide use in US field crops. pp.277-291. In D. Pimentel, ed. Techniques for reducing pesticide use - economic and environmental benefits. John Wiley & Sons, New York.
Horn, D. J. 2000. Ecological control of insects. pp. 3-21. In J. E. and N. A. Rechcigl, ed. Insect Pest Management Techniques for Environmental Protection. Lewis Publ., Boca Raton, FL.
Purrington, F. F., R. C. Stanton and D. J. Horn. 1999. Ground beetle range extensions: six new Ohio records (Coleoptera: Carabidae). Great Lakes Entomol. 32:47-49.
Spieles, Douglas J. and D. J.Horn. 1998. The importance of prey for fecundity and behavior in the gypsy moth (Lepidoptera: Lymantriidae) predator Calosoma sycophanta (Coleoptera:Carabidae). Envir. Entomol. 27: 458-462.
