David L. Gorchov


317 Hughes Hall  (513) 529-4205

Biographical Information

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.  Current projects investigate interactions between invasive shrubs, especially Amur honeysuckle, and overabundant white-tailed deer. These interactions include apparent competition, where invasive shrubs sustain populations of deer high enough to negatively impact native plants, and facilitation, where the same shrubs protect tree seedlings from deer browse. They also investigate 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 focus on biotic resistance from generalist herbivores and 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.  Dr. Gorchov’s current research projects are in Ohio, although past projects were carried out in Maryland, Mexico, and Peru.

Gorchov Lab Website

Advisor, Environmental Science Co-major (https://miamioh.edu/academics/majors-minors/majors/environmental-science-comajor.html)

Courses Taught

BIO/MBI 115 Concepts in Biology: Evolution, Ecology, Genetics, Diversity
BIO/MBI 333 Field Ecology
IES 275 Principles of Environmental Science

Recent Publications

*Hoven B.M., D.L. Gorchov, K.S. Knight, V.E. Peters. Accepted for publication. The effect of emerald ash borer-caused tree mortality on the invasive shrub Amur honeysuckle and their combined effects on tree and shrub seedlings. Biological Invasions.

*Peebles-Spencer, J.R. D.L. Gorchov, and T.O. Crist. 2017. Effects of an invasive shrub, Lonicera maackii, and a generalist herbivore, white-tailed deer, on forest floor plant community composition. Forest Ecology and Management. 402: 204-212.

Peebles-Spencer, J.R. and D.L. Gorchov. Accepted for publication. Are native tree seedlings facilitated by an invasive shrub where white-tailed deer are abundant? Natural Areas Journal.

**Higham, M., B.M. Hoven, D.L. Gorchov, and K.S. Knight. 2017. Patterns of coarse woody debris in hardwood forests across a chronosequence of ash mortality due to the Emerald Ash Borer (Agrilus planipennis). Natural Areas Journal 37

*Martinod, K.L. and D.L. Gorchov. 2017. White-tailed deer browse on an invasive shrub with extended leaf phenology meets assumptions of an apparent competition hypothesis. AoB PLANTS 9: plx006; doi:10.1093/aobpla/plx006

*Driscoll, A.G., N.F. Angeli, D.L. Gorchov, Z. Jiang, J. Zhang, and **C. Freeman. 2016. The effect of treefall gaps on the spatial distribution of three invasive plants in a mature upland forest in Maryland. Journal of the Torrey Botanical Society 143: 349-358.

*Rondon, X., D.L. Gorchov, R. B. Noble Jr., and F. Cornejo. 2015. Aboveground carbon dynamics following strip clear-cutting in the Peruvian Amazon. Ecological Research 30: 693-703.

*Guiden, P.W., D.L. Gorchov, C. Nielsen, and E. Schauber. 2015. Seed dispersal of an invasive shrub, Amur honeysuckle (Lonicera maackii), by white-tailed deer in a fragmented agricultural-forest matrix. Plant Ecology 216:939–950. DOI 10.1007/s11258-015-0480-x

**S.S. Pfeiffer and D.L. Gorchov. 2015. Effects of the invasive shrub Lonicera maackii on soil water content in eastern deciduous forest. American Midland Naturalist. 173:38–46.

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. 7:464–472

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.

*undergraduate advisees

**graduate advisees

"Presentation of research by Kylie Martinod (BIO MS 2016) and David Gorchov on the importance of an invasive shrub in the diet of white-tailed deer at Botany 2016, Savannah,GA, August 2016.