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"Mature Beech Trees (Fagus grandifolia; Fagaceae) Are Persistently Clonal in Coves and Beech Gaps in the Great Smoky Mountains." American Journal of Botany 101, no. 2 (2014): 381-388.
"Preliminary Report of Ecological Factors Influencing Incidence and Severity of Beech Bark Disease in the Appalachian Region." In Proceedings, 18th Central Hardwood Forest Conference; 2012 March 26-28; Morgantown, WV, 169-181. U.S. Department of Agriculture, Forest Service, 2013.
"Microfungi of Forest Litter From Healthy American Beech, Fraser Fir, and Eastern Hemlock Stands in Great Smoky Mountains National Park." Southeastern Naturalist 8, no. 4 (2009): 609-630.
"The Influence of Flowering Dogwood (Cornus florida) on Land Snail Diversity in a Southern Mixed Hardwood Forest." American Midland Naturalist 157 (2007): 137-148.
"Microfungi from Bark of Healthy and Damaged American Beech, Fraser Fir, and Eastern Hemlock Trees During an All Taxa Biodiversity Inventory in Forests of the Great Smoky Mountains National Park." Southeastern Naturalist 6, no. 1 (2007): 67-82.
Beech Bark Disease Monitoring Protocol for Great Smoky Mountains National Park. Gatlingburg, TN: U.S. Department of the Interior, National Park Service, 2006.
"Associations Between Causal Agents of the Beech Bark Disease Complex [Cryptococcus fagisuga (Homoptera: Cryptococcidae) and Nectria spp.] in the Great Smoky Mountains National Park." Environmental Entomology 33, no. 5 (2004): 1274-1281.
"Variation in Frequency of Clonal Reproduction in Fagus grandifolia in the Great Smoky Mountains." Castanea 69, no. 1 (2004): 38-51.
"Forests of the Central and Southern Appalachians and Eastern Virginia Having Beech as a Major Component." Castanea 68, no. 3 (2003): 222-231.
"Investigating the Relationship between Cryptococcus fagisuga and Fagus grandifolia in Great Smoky Mountains National Park." Southeastern Naturalist 1, no. 4 (2002): 415-424.
"Allothrombium mitchelli (Acari : Trombidiidae) in the Great Smoky Mountains National Park: Incidence, Seasonality, and Predation on Beech Scale (Homoptera : Eriococcidae)." Annals of the Entomological Society of America 94, no. 6 (2001): 896-901.
"Demographic Genetics of the American beech, Fagus grandifolia. II. Genet Substructure of Populations for the Blue Ridge, Piedmont and the Great Smoky Mountains." Plant Species Biology 16, no. 3 (2001): 219-230.
"Regional Differentiation in Genetic Components for the American Beech, Fagus grandifolia Ehrh., in Relation to Geological History and Mode of Reproduction." Journal of Plant Research 114, no. 1115 (2001): 353-368.
Dendroecology of American Beech Stands Infested with Beech Bark Disease: A Comparative Study of Stand Dynamics and Temporal Growth Features. Resources Management and Science Division, Great Smoky Mountains National Park, 1995.
Incidence and Life History of Beech Scale, Initiator of Beech Bark Disease, in the Great Smoky Mountains National Park. Knoxville, TN: University of Tennessee, 1995.
1994 Beech Bark Disease Complex Studies in the Great Smoky Mountains National Park. Knoxville, TN: University of Tennessee, 1994.
"Effects of Wild Pigs on Beech Growth in Great Smoky Mountains National Park." Journal of Wildlife Management 50, no. 4 (1986): 655-659.
"Variation in Radial Growth of American Beech (Fagus grandifolia Ehrh.) at High Elevations inthe Great Smoky Mountains." Bulletin of the Torrey Botanical Club 112, no. 4 (1985): 398-402.
An Examination of the Seed Rain and Seed Bank for Evidence of Seed Exchange Between a Beech Gap and a Spruce Forest in the Great Smoky Mountains. Knoxville, TN: The University of Tennessee, 1982.
"Gap Regeneration in Some Old-Growth Forests of the Eastern United States." Ecology 62, no. 1 (1981): 1041-1051.
Effect of the European Wild Boar (Sus scrofa) on the Woody Vegetation of Gray Beech Forest in the Great Smoky Mountains In Research/Resources Management Report. Gatlinburg, TN: Uplands Field Research Laboratory, 1977.
Why Does Spruce Not Invade the High Elevation Beech Forests of the Great Smoky Mountains? In Department of Biology. Knoxville, TN: University of Tennessee, 1977.
The Sampling Pattern, and Survival of the Higher Elevation Beech in the Great Smoky Mountains. Knoxville, Tennessee: The University of Tennessee, 1964.
