INVITED LECTURES

1.  University of Tennessee - Knoxville, Department of Botany, 27 March 2000. Talk entitled "Conservation biology of the endemic Short's goldenrod: insights to causes of plant rarity."

2.  Eastern Kentucky University, Department of Biological Sciences, 20 October 2000. Talk entitled "Rarity of Short's goldenrod, an endangered plant in Kentucky."

3.  Austin Peay State University, Department of Biology & Center for Field Biology, 18 January 2001. Talk entitled "Conservation biology of the endangered plant, Short's goldenrod."

4.  Shorter College, 27 September 2004. Talk entitled "Exotic plants in the cedar glade ecosystem: invasiveness, effects, and management."

5.  Philadelphia Botanical Club, 24 March 2005. Talk entitled "Cedar glades: history, ecology, and conservation."

6.  University of Kentucky, Seed Biology Group, 13 October 2005. Talk entitled "Ecology of seed germination - linkages to management, biogeography, and invasion in a changing climate."

7.  Ohio State University, Department of Horticulture and Crop Science, 14 October 2005. Talk entitled "Seed germination - ecological considerations and applications to conservation biology."

8.  Ornamental Plant Germplasm Center, Ohio State University, 14 October 2005. Talk entitled "Twists and turns of a seed ecologist - germinating seeds of wild plants."

9.  Hokkaido University (Japan), Graduate School of Agriculture, 5 June 2006. Talk entitled "North America and Asia - our shared natural history from a seed perspective."

RECENT PARTICIPATION

Chairperson for Paper Sessions at Meetings

Seed Production and Germination - Botanical Society of America (2005)

Plant Ecology - Association of Southeastern Biologists (2006)

Invasive Species and Exotics - Botanical Society of America (2006)

Best Student Paper & Poster Judge

ESA/SEC Odum Award - Assoc. of Southeastern Biologists Annual Meeting (2005)

ESA/SEC Odum Award - Assoc. of Southeastern Biologists Annual Meeting (2006)

Ecological Section - Botanical Society of America Annual Meeting (2006)

Current Leadership Positions

Chair, Editorial Board of Castanea

Vice Chair, Ecological Section of the Botanical Society of America

Current Committees

Rare Plant Advisory Committee - Tennessee  Division of Natural Areas

Executive Council - Southern Appalachian Botanical Society

Richard & Minnie Windler Award - Southern Appalachian Botanical Society

Forest Conservation Values Advisory Group - Tennessee Division of Forestry

Editorship Positions

2004-present, Editorial Board - Castanea

2005-present, Book Review Editor - Native Plants Journal

Ad hoc Reviewer for Journals

Acta Oecologica, American Journal of Botany, American Midland Naturalist, Annals of Botany, Australian Journal of Botany, Bartonia, Biological Conservation, Canadian Journal of Botany, Canadian Journal of Plant Science, Castanea, Ecological Applications, Ecological Research, HortTechnology, International Journal of Plant Sciences, Journal of the Pennsylvania Academy of Science, Journal of the Tennessee Academy of Science, Journal of the Torrey Botanical Society, Native Plants Journal, Naturwissenschaften, Northeastern Naturalist, Ohio Journal of Science, Plant Ecology, Rhodora, Seed Science Research, Sida, Southeastern Naturalist, Weed Research, Wetlands

Ad hoc Reviewer for Edited Publications, Database, & Government Document

Flora of North America, Vol. 3 (Edited by Flora of North America Editorial Committee) 

Evolution of Functional Traits in Plants (Edited by D.D. Ackerly & R.K. Monson) 

Proceedings of the 6th Symposium on the Natural History of Lower Tennessee and Cumberland River Valleys (Edited by S.W. Hamilton et al.)

IUCN/ISSG Global Invasive Species Database

U.S. Fish & Wildlife Service Recovery Plan

Ad hoc Reviewer for Grant Proposals

National Science Foundation - Ecological Studies

National Fish and Wildlife Foundation