Dave Gorchov studies plant population ecology and community ecology. One major focus of Dr. Gorchov and his graduate and undergraduate students is the invasion of forests by exotic plant species. They seek to understand the importance of the factors that shape the invasion process, particularly the relative importance of community invasibility and propagule pressure in initiating new invasions. For invasibility they are focusing on the role of canopy gaps caused by tree-falls and ash mortality due to emerald ash borer. Aspects of propagule pressure they are investigating include landscape connectivity and seed dispersal by deer and birds. They also study the effects of invasive plants on native plant communities, including the interaction of invasive shrubs and white-tailed deer. Dr. Gorchov’s current research projects are in Ohio and the Smithsonian Environmental Research Center in Maryland, although past projects were carried out in Mexico and Peru. He is currently the president of the Ohio Invasive Plants Council.
*S.S. Pfeiffer and D.L. Gorchov. Accepted for publication. Effects of the invasive shrub Lonicera maackii on soil water content in eastern deciduous forest. American Midland Naturalist.
Gorchov, D.L. *S.M. Castellano, and D.A. Noe. 2014. Long-distance dispersal and diffusion in the invasion of Lonicera maackii. Invasive Plant Science and Management. In press.
Gorchov, D.L., M.C. Henry, and **P.A. Frank. 2014. Invasion of an exotic shrub into forested stands in an agricultural matrix. Invasive Plant Science and Management 7: 336-344.
Gorchov, D.L., X. J. Rondon**, F. Cornejo, R. L. Schaefer, J. M. Janosko, and G. Slutz. 2013. Edge effects in recruitment of trees, and relationship to seed dispersal patterns, in cleared strips in the Peruvian Amazon. Ecological Research 28: 53-65.
Castellano, S.M.** and D.L. Gorchov. 2013. Using a stable isotope to label seeds and seedlings of an invasive shrub, Lonicera maackii. Invasive Plant Science and Management 6:112-117
Johnston, S.E., M.C. Henry, and D.L. Gorchov. 2012. Using Advanced Land Imager (ALI) and Landsat Thematic Mapper (TM) for the detection of the invasive shrub Lonicera maackii in southwestern Ohio forests. GIScience & Remote Sensing 49: 450–462.
Gorchov, D.L., E. Thompson*, J. O'Neill, D. Whigham, and D.A. Noe. 2011. Treefall gaps required for establishment, but not survival, of invasive Rubus phoenicolasius in deciduous forest, Maryland, USA. Plant Species Biology 26: 221-234
Berry, E.J**, D.L. Gorchov, B.A. Endress**, and M.H.H. Stevens. 2008. Source-sink dynamics within a plant population: the impact of substrate and herbivory on palm demography. Population Ecology 50: 63-77.