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Understory Composition of Five Tsuga canadensis Associated Forest Communities in Great Smoky Mountains National Park." Natural Areas Journal 32, no. 3 (2012): 260-269.
"Plant Viruses in the Great Smoky Mountain National Park. Starkville, MS: Discover Life in America, 2011.
Investigation of Acid Deposition Effects on Southern Appalachian Red Spruce (Picea Rubens) by Determination of Calcium, Magnesium, and Aluminum in Foliage and Surrounding Soil Using Icp-Oes." Instrumentation Science & Technology 38, no. 5 (2010): 341-358.
"Estimating Landscape-Scale Species Richness: Reconciling Frequency- and Turnover-Based Approaches." Ecology 89, no. 1 (2008): 174-182.
"Evolution in the Genus Cryptocercus (Dictyoptera : Cryptocercidae): No Evidence of Differential Adaptation to Hosts or Elevation." Biological Journal of the Linnean Society 80, no. 2 (2003): 223-233.
"Vertical Distribution and Assemblages of Corticolous Myxomycetes on Five Tree Species in the Great Smoky Mountains National Park." Mycologia 95, no. 4 (2003): 565-576.
"Size- and Age-Class Distributions of Fraser Fir Following Balsam Woolly Adelgid Infestation." Canadian Journal of Forest Research 30, no. 6 (2000): 948-957.
"Foliar Deficiencies of Mature Southern Appalachian Red Spruce Determined from Fertilizer Trials." Soil Science Society of America Journal 58, no. 5 (1994): 1572-1579.
"Growth and Physiological Changes in Red Spruce Saplings Associated with Acidic Deposition at High Elevations in the Southern Appalachians, USA." Forest Ecology and Management 51, no. 1-3 (1992): 43-51.
"Prevalence of Individual-Tree Growth Decline in Red Spruce Populations of Southern Appalachian Mountains." Canadian Journal of Forest Research 22, no. 6 (1992): 905-914.
"The Effect of Balsam Woolly Aphid Infestation on Fuel Levels in Spruce-Fir Forests of Great Smoky Mountains National Park. National Park Service -- Southeast Region, 1985.
Final Contract Report for Regional Chief Scientist, Southeast Regional Office, National Park Service On Stem Morphology and Physiology of Fraser Fir in Relation to Balsam Wolly Aphid. Knoxville, TN: University of Tennessee, 1981.
The Distribution and Dynamics of Forest Fuels in the Low Elevation Forests of Great Smoky Mountains National Park In Research/Resources Management Report. Gatlinburg, TN: Uplands Field Research Laboratory, 1980.
Fraser Fir and Balsam Wooly Aphid: Summary of Information. The Southern Appalachian Research -- Resource Management Cooperative, 1980.
Effects of Fraser Fir Death On Population Dynamics in Southern Appalachian Boreal Ecosystem. Knoxville, TN: University of Tennessee, 1979.
Fraser Fir in the Great Smoky Mountains National Park: Its Demise by the Balsam Woolly Aphid (Adelges Piceae Ratz.). Knoxville, TN: Department of Forestry, University of Tennessee, 1978.