• Graduate Research Assistant, Virginia Polytechnic Institute & State University, 1970-74.
• Instructor of Statistics, Virginia Polytechnic Institute & State University, 1974.
• Assistant Professor of Wildlife and Fisheries, Mississippi State University, 1974-1979.
• Associate Professor of Wildlife and Fisheries, Mississippi State University, 1979-80, Granted Tenure 1980.
• Associate Professor of Forestry, Clemson University, 1980-84, Granted Tenure 1983.
• Professor of Forestry and Natural Resources, Clemson University, 1984-Present.

• Developed model for state agencies to work cooperatively with landowners and hunters to manage deer populations to provide quality recreational opportunities, reduce nuisance problems and sustain biodiversity 
• Greatly increased the understanding of how forest management practices affect wildlife habitats through significant research findings with numerous species
• Established Clemson as a leader in developing management strategies for maintaining biodiversity in managed forests
• Created primary information base on forest industry hunt lease programs in the Southeast
• Authored or co-authored 297 publications (88 refereed, 69 technical, 97 abstracts, 43 popular)
• Obtained $2.5 million in extramural research support
• Directed and graduated 64 graduate students (currently advising 5 more)
• Directed 9 Ph.D. students that now serve in tenure-track faculty positions at major land-grant universities
• Received three research publication awards from the Southeast Section, The Wildlife Society
• Received the 1999 Deer Management Achievement Award (SE TWS)
• Received the 2004 Godley-Snell Award for Excellence in Agricultural Research, Clemson University

1. Keyser, P. D., D. C. Guynn , Jr., W.M. Knox, K. E. Kammermyer and J. M. Crum. 2006. Dynamics of adult sex ratios in white-tailed deer populations: a simulation, Wildlife Soc. Bulletin. 34(4):1113-1120.
2. Keyser, P. D., D. C. Guynn and H.S. Hill, Jr. 2005. Population density physical parameter relationships in white-tailed deer. J. Wildlife Management. 69(1):356-365.
3. Keyser, P. D., D. C. Guynn and H.S. Hill,  Jr. 2005. Density-dependent recruitment patterns in white-tailed deer. Wildlife Society Bulletin. 33(1):222-232.
4. Guynn, D. C., S. T. Guynn and P. A. Layton. 2004. Biodiversity metrics in sustainable forestry programs. J. of Forestry. 102(3):46-52.
5. Guynn, D. C., S. T. Guynn, T. B. Wigley and D. A. Miller. 2004. Herbicides and forest biodiversity- what do we know and where do we go from here? Wildlife Society Bulletin. 32(4):1085-1092.

Click here to see the list of all Publications

1. Research Sessions (moderator). QDMA National Convention. June 2005. Charleston, SC.


2. History and development of The Wildlife Society’s Professional Development Program. September 2005. TWS Annual Conference. Madison, WI.


3. Quality Deer Management. 1st Annual Deer/Turkey Management Shortcourse. University of Florida IFAS Extension. August 2006. Arcadia, FL.


4. Research Sessions (moderator). QDMA National Convention. June 2006. Philadelphia, PA.