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The Amphibians of Great Smoky Mountains National Park. Knoxville, TN: The University of Tennessee Press, 2004.
Fluctuations in a Metapopulation of Nesting Four-Toed Salamanders, Hemidactylium scutatum, in the Great Smoky Mountains National Park, USA, 1999-2003." Natural Areas Journal 24, no. 2 (2004): 135-140.
"Using Counts to Simultaneouslly Estimate Abundance and Detection Probabilities in a Salamander Community." Herpetologica 60, no. 4 (2004): 468-478.
"Leaf Litterbags: Factors Affecting Capture of Stream-Dwelling Salamanders." Applied Herpetology 1, no. 1-2 (2003): 23-37.
"Monitoring Amphibians in Great Smoky Mountains National Park. Tallahassee, FL: U.S. Department of the Interior, U. S. Geological Survey, 2003.
Inventorying and Monitoring the Amphibians of Great Smoky Mountains National Park In 2001 Progress Report. Florida Caribbean Science Center: U.S. Geological Survey, 2002.
The Cave Associated Amphibians of Great Smoky Mountains National Park: Review and Monitoring." The Journal of the Elisha Mitchell Scientific Society 117, no. 3 (2001): 139-149.
"Inventorying and Monitoring the Amphibians of Great Smoky Mountains National Park: Progress Report. U.S. Geological Survey, Florida Caribbean Science Center, 1998.
Imperiled Amphibians: A Historical Perspective." In Aquatic Fauna in Peril: The Southeastern Perspective, edited by George W. Benz and David E. Collins, 167-200. Decatur, GA: Southeast Aquatic Research Institute, 1997.
"The Influence of Temperature and Body Size on Duration of Immobility in Salamanders of the Genus Desmognathus." Amphibia-Reptilia 11 (1990): 401-410.
"Postures Associated with Immobile Woodland Salamanders, Genus Plethodon." Biological Sciences 53, no. 1 (1990): 43-50.
"Duration of Immobility in Salamanders, Genus Plethodon (Caudata: Plethodontidae)." Herpetologica 45, no. 4 (1989): 467-473.
"The Cave Associated Amphibians of Great Smoky Mountains National Park. Vol. 2014. U. S. Department of the Interior.