Mac Callaham

Team Leader/Research Ecologist
Restoration and Invasive Species Team
Center for Forest Disturbance Science
USDA Forest Service
mcallaham@fs.fed.us
SRS Staff Directory Profile

SRS Publications List

Education

Ph.D. Biology August 2000 Kansas State University
M.S. Crop and Soil Sciences December 1996 University of Georgia
B.S. Zoology March 1994 University of Georgia
B.A. English March 1994 University of Georgia

Interests and Specializations

  • Land management approaches to restoration of southern soils and forest ecosystems.
  • Land-use legacy effects on soil characteristics, particularly soil biotic community composition and function.
  • Ecology of invasive earthworms.
  • Functional roles of microbes and invertebrates in nutrient and energy cycling.
  • Population- and community-level responses of invertebrates to natural and anthropogenic disturbances.

Research Experience

Team Leader/Research Ecologist June 2007 Center for Forest Disturbance Science, Southern Research Station, USDA Forest Service, Athens, GA
Research Ecologist June 2002–June 2007 USDA Forest Service, Southern Research Station, Athens, GA
Adjunct Assistant Professor May 2005–May 2009 Department of Ecology, Evolution and Organismal Biology, Ohio State University
Adjunct Assistant Research Professor May 2002–Present Odum School of Ecology, University of Georgia
Adjunct Assistant Professor December 2001–Present Department of Entomology, Clemson University
Post-doctoral Research Ecologist June 2001–June 2002 USDA Forest Service, Clemson University
Post-doctoral Research Associate June 2000–June 2001 Environmental Science Division, Oak Ridge National Laboratory
Graduate Fellow and Research Assistant August 1996–May 2000 Division of Biology, Kansas State University
Graduate Research Assistant September 1994–August 1996 Institute of Ecology, University of Georgia
Biological Science Technician Summers 1993–1994 USDA Forest Service, Apalachicola National Forest, Bristol, FL

Teaching Experience

Principal Lecturer University of Georgia Spring Semester 2013 ECOL 8660 Soil Biology and Ecology
Guest Lecturer University of Georgia, Odum School of Ecology 2006–Present Graduate-level Soil Ecology Course
Instructor Georgia Agricultural Education Program Course on earthworm biology for high school educators in the Georgia ag. ed. continuing education program.
Instructor Lecture for Forest Service, Park Service and Fish and Wildlife Service trainees Gatlinburg TN, January 2006; Chattanooga TN, June 2009 Rx-310, Fire Effects
Graduate Teaching Assistant Kansas State University August 1996–May 2000 Organismic Biology and Terrestrial Biogeochemical Cycling

Peer-Reviewed Publications & Manuscripts

  • Brown, S.P., M.A. Callaham, Jr., A.K. Oliver, and A. Jumpponen. 2013. Deep ion torrent sequencing identifies soil fungal community shifts after frequent prescribed fires in a southeastern forest ecosystem. FEMS Microbiology Ecology 86:557-566.
  • Brown, G.G., M.A. Callaham, Jr., C.C. Niva, A. Feijoo, K.D. Sautter, S.W. James, C. Fragoso, A. Pasisni, and R.M. Schmelz. 2013. Terrestrial oligochaete research in Latin America: the importance of the Latin American Meetings on Oligochaete Ecology and Taxonomy. Applied Soil Ecology 69:2-12.
  • Callaham, M.A., Jr., J.A. Stanturf, W.J. Hammond, D.L. Rockwood, E.S. Wenk, and J.J. O’Brien. 2013. Survey to evaluate escape of Eucalyptus spp. from plantations in southeastern USA. International Journal of Forestry Research, vol. 2013, Article ID 946374, 10 pages. DOI: 10.1155/2013/946374
  • Snyder, B.A., M.A. Callaham, Jr., C.N. Lowe, and P.F. Hendrix. 2013. Earthworm invasion in North America: Food resource competition affects native millipede survival and invasive earthworm reproduction. Soil Biology and Biochemistry 57:212-216.
  • Callaham, M.A., Jr., K.R. Butt, and C.N. Lowe. 2012. Stable isotope evidence for marine-derived avian inputs of nitrogen into soil, vegetation, and detrital foodwebs on the Isle of Rum, Scotland, UK. European Journal of Soil Biology 52:78-83.
  • McFarlane, K.J., M.S. Torn, P.J. Hanson, R.C. Porras, C.W. Swanston, M.A. Callaham, Jr. and T.P. Guilderson. 2012. Comparison of soil organic matter dynamics at five temperate deciduous forests with physical fractionation and radiocarbon measurements. Ecosystems. DOI 10:1007/s10533-012-9740-1
  • Snyder, B.A., M.A. Callaham, Jr., and P.F. Hendrix. 2011. Spatial variability of an invasive earthworm (Amynthas agrestis) population and potential impacts on soil characteristics and millipedes in the Great Smoky Mountains National Park, USA. Biological Invasions 13:349-358. pdf
  • Strickland, M.S., M.A. Callaham, Jr., C.A. Davies, C.L. Lauber, K. Ramirez, D.D. Richter, Jr., N. Fierer, and M.A. Bradford. 2010. Rates of in situ carbon mineralization in relation to land-use, microbial community and edaphic characteristics. Soil Biology and Biochemistry 42:260-269. pdf
  • Althoff, P.S., T.C. Todd, S.J. Thien, and M.A. Callaham, Jr. 2009. Response of soil microbial and invertebrate communities to tracked vehicle disturbance in tallgrass prairie. Applied Soil Ecology 43:122-130. pdf
  • Kitchen, D.J., J.M. Blair, and M.A. Callaham, Jr. 2009. Annual fire and mowing alter biomass, depth distribution, and C and N content of roots and bulk soil in tallgrass prairie. Plant and Soil 323:235-247. pdf
  • Mitra, O., M.A. Callaham, Jr., M.L. Smith, and J.E. Yack. 2009. Grunting for worms: Seismic vibrations cause Diplocardia earthworms to emerge from the soil. Biology Letters 5:16-19. pdf
  • O’Brien, J.J., J.K. Hiers, M.A. Callaham, Jr., R.J. Mitchell, and S.B. Jack. 2008. Interactions among overstory structure, seedling life-history traits, and fire in frequently burned neotropical pine forests. Ambio 37:542- 547. pdf
  • Hendrix, P.F., M.A. Callaham, Jr., J.M. Drake, C.-Y. Huang, S.W. James, B.A. Snyder, and W.X. Zhang. 2008. Pandora’s box contained bait: The global problem of introduced earthworms. Annual Reviews in Ecology, Evolution, and Systematics. 39:593-613. pdf
  • Callaham, M.A., Jr., C.C. Rhoades, and L. Heneghan. 2008. A striking profile: Soil ecological knowledge in restoration management and science. Restoration Ecology 16:604-607. pdf
  • Heneghan, L., S.P. Miller, M.A. Callaham, Jr., S.G. Baer, J. Montgomery, C.C. Rhoades, S.J. Richardson, M. Pavao-Zuckerman. 2008. Integrating soil ecological knowledge into restoration management. Restoration Ecology 16:608-617. pdf
  • Richter, D. DeB., M. Hofmockel, M.A. Callaham, Jr., D.S. Powlson, and P. Smith. 2007. Long-term Soil Experiments: Keys to Managing Earth’s Rapidly Changing Ecosystems. Soil Science Society of America Journal 71:266-279.
  • Hendrix, P.F., and M.A. Callaham, Jr. 2007. Introduction: Face to face – Coleman’s Ped Revealed. Pedobiologia 50: 445-446.
  • Callaham, M.A., Jr., D.D. Richter, D.C. Coleman, and M. Hofmockel. 2006. Long-term land use effects on soil invertebrate communities in Southern Piedmont soils. European Journal of Soil Biology 42:S150- S156.
  • Callaham, M.A., Jr., G. González, C. Hale, L. Heneghan, S. Lachnicht, and X. Zou. 2006. Policy and management responses to earthworm invasions. Biological Invasions 8:1317-1329.
  • Hendrix, P.F., G. Baker, M.A. Callaham, Jr., G.A. Damoff, C. Fragoso, G. Gonzales, S.W James, S.L. Lachnicht, T. Winsome, and X. Zou. 2006. Invasion of exotic earthworms into native earthworm communities. Biological Invasions 8:1287-1300.
  • O’Brien, J.J., C. Stahala, G.P. Mori, M.A. Callaham, Jr. and C.M. Bergh. 2006. Effects of prescribed fire on conditions inside a Cuban Parrot (Amazona leucocephala) surrogate nesting cavity on Great Abaco Island, Bahamas. The Wilson Journal of Ornithology 118:508-512.
  • DiCosty, R.J., M.A. Callaham, Jr., and J.A. Stanturf. 2006. Atmospheric deposition and re-emission of mercury estimated in a prescribed forest-fire experiment in Florida, USA. Water, Air, and Soil Pollution 176:77-91.
  • Callaham, M.A., Jr., P.F. Hendrix, and R.J. Phillips. 2003. Occurrence of an exotic earthworm (Amynthas agrestis) in undisturbed soils of the southern Appalachian mountains, USA. Pedobiologia 47:466-470.
  • Callaham, M.A., Jr., J.M. Blair, T.C. Todd, D.J. Kitchen, and M.R. Whiles. 2003. Macroinvertebrates in North American tallgrass prairie soils: Effects of fire, mowing, and fertilization on density and biomass. Soil Biology and Biochemistry 35:1079-1093.
  • Callaham, M.A., Jr., M.R. Whiles, and J.M. Blair. 2002. Fire, mowing, and fertilization effects on two annual cicada species (Homoptera: Cicadidae) in tallgrass prairie. American Midland Naturalist 148:90-101.
  • Callaham, M.A., Jr., A.J. Stewart, C. Alarcón, and S.J. McMillen. 2002. Effects of earthworm (Eisenia fetida) and wheat straw (Triticum aestivum) additions on selected ecological properties of petroleum contaminated soils. Environmental Toxicology and Chemistry 21:1658-1663.
  • Callaham, M.A., Jr., J.M. Blair, and P.F. Hendrix. 2001. Different behavioral patterns of the earthworms Octolasion tyrtaeum and Diplocardia spp. in tallgrass prairie soils: potential influences on plant growth. Biology and Fertility of Soils 34:49-56.
  • Whiles, M.R., M.A. Callaham, Jr., C.K. Meyer, B.L. Brock, and R.E. Charlton. 2001. Emergence of periodical cicadas from a Kansas riparian forest: Densities, biomass and nitrogen flux. American Midland Naturalist 145:176-187.
  • Callaham, M.A., Jr., M.R. Whiles, C.K. Meyer, B.L. Brock, and R.E. Charlton. 2000. Feeding ecology and emergence production of annual cicadas (Homoptera: Cicadidae) in tallgrass prairie. Oecologia 123:535-542.
  • Callaham, M.A., Jr., and J.M. Blair. 1999. Influence of differing land management on the invasion of North American tallgrass prairie soils by European earthworms. Pedobiologia 43:507-512.
  • Hendrix, P.F., M.A. Callaham, Jr., S.L. Lachnicht, J.M. Blair, S.W. James, and X. Zou. 1999. Stable isotopic studies of resource utilization by nearctic earthworms (Diplocardia, Oligochaeta) in subtropical savanna and forest ecosystems. Pedobiologia 43: 818-823.
  • Hendrix, P.F., S.L. Lachnicht, M.A. Callaham, Jr., X. Zou. 1999. Stable isotopic studies of earthworm feeding ecology in tropical ecosystems of Puerto Rico. Rapid Communications in Mass Spectrometry 13:1295-1299.
  • Callaham, M.A., Jr., and P.F. Hendrix. 1998. Impact of earthworms (Diplocardia: Megascolecidae) on cycling and uptake of nitrogen in coastal plain forest soils from northwest Florida, USA. Applied Soil Ecology 9:233-239.
  • Callaham, M.A., Jr., and P.F. Hendrix. 1997. Relative abundance and seasonal activity of earthworms (Lumbricidae and Megascolecidae) as determined by hand-sorting and formalin extraction techniques in forest soils on the southern Appalachian Piedmont. Soil Biology and Biochemistry 29:317-321.
  • Hendrix, P.F., M.A. Callaham, Jr., and L. Kirn. 1994. Ecology of nearctic earthworms in the southeastern USA. II. Effects of bait harvesting on Diplocardia (Oligochaeta, Megascolecidae) populations in Apalachicola National Forest, north Florida. Megadrilogica 5:73-76.
  • Hendrix, P.F., M.A. Callaham, Jr., and S.W. James. 1994. Ecology of nearctic earthworms in the southeastern USA. I. Characteristics of Diplocardia longa (Oligochaeta, Megascolecidae) surface casts in grass, hardwood and pine microhabitats on the lower piedmont of Georgia. Megadrilogica 5:45-51.

Edited Volumes

  • Brown, G.G., M.A. Callaham, Jr., and C.N. Niva, Guest Editors. 2013. Progress and Priorities in Latin American Oligochaete Research. Applied Soil Ecology 69:1-68
  • Callaham, M.A., Jr., L. Heneghan, and C.C. Rhoades, Guest Editors. 2008. Special Section: Soil Ecology and Restoration Ecology. Restoration Ecology 16:604-712.
  • Hendrix, P.F., and M.A. Callaham, Jr., Guest Editors. 2007. Through a Ped Darkly: A Special Issue Dedicated to David C. Coleman. Pedobiologia 50:445-588.

Book Chapters, Proceedings and Reports

  • Stottlemyer, A.D., G.G. Wang, T.A. Waldrop, C.E. Wells and M.A. Callaham. 2013. Short-term effects of fuel reduction treatments on soil mycorrhizal inoculum potential in beetle-killed stands. In Guldin, J.M. (Ed.), Proceedings of the 15th Biennial Southern Silvicultural Research Conference, e-Gen. Tech. Rep. SRS-GTR-175. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. Pp. 357-360.
  • Hendrix, P.F., P.C.J. van Vliet, and M.A. Callaham, Jr. 2012. Soil Fauna: Earthworms. Pages 25.35 - 25.44 in: Huang, P.M., Y. Li, and M.P. Sumner (Eds.), Handbook of Soil Sciences: Properties and Processes (2nd Edition), CRC Press, Boca Raton.
  • Callaham, M.A., Jr., D.A. Crossley, Jr., and D.C. Coleman. 2012. Soil Fauna: Macroarthropods. Pages 25.19 - 25.26 in: Huang, P.M., Y. Li, and M.P. Sumner (Eds.), Handbook of Soil Sciences: Properties and Processes (2nd Edition), CRC Press, Boca Raton.
  • Callaham, M.A., Jr., D.A. Scott, J.J. O’Brien, and J.A. Stanturf. Online. Fuel management practices and their effects on the soils of the eastern US. Available online in: Audin, L.J., (Ed.). (2008, October 6--last update). DRAFT Cumulative Watershed Effects of Fuels Management in the Eastern United States. [Online]. Available: http://www.na.fs.fed.us/fire/cwe.shtm [2009, June 15--access date].
  • Lilleskov, E., M.A. Callaham, Jr., R. Pouyat, J.E. Smith, M. Castellano, G. González, D. Jean Lodge, Rachel Arango, and Frederick Green. 2010. Invasive soil organisms and their effects on belowground processes. Pages 67-83 in Dix, M.E. and K. Britton (eds), A Dynamic Invasive Species Research Vision: Opportunities and Priorities 2009-29. US Department of Agriculture, Forest Service, General Technical Report, WO-79, 130 pages.
  • Callaham, M.A., Jr., M. Hofmockel, and D.DeB. Richter. 2008. Global soil change motivates workshop on Earth’s critical zone. Bulletin of the Ecological Society of America 89:191-192.
  • Richter, D. deB., M.A. Callaham, D. Markewitz, and R. Vilgalys. 2006. Understanding soil change at the Calhoun Experimental Forest’s Long-Term Soil Experiment. Pages 169-175 in: Irland, L.C., A.E. Camp, J.C. Brissette, and Z.R. Donohew, (editors), Long-term Silvicultural and Ecological Studies: Results for Science and Management, Yale University, GISF Research Paper 005, New Haven, Connecticut.
  • Callaham, M.A., Jr. 2004. Soil biology and fire in southern ecosystems. Encyclopedia article in Encyclopedia of Southern Fire Science, edited by D. Kennard, C. Fowler, and M. Rauscher. ONLINE.
  • Callaham, M.A. Jr., P.H. Anderson, T.A. Waldrop, D.J. Lione, and V.B. Shelburne. 2004. Litter decomposition and soil respiration responses to fuel-reduction treatments in Piedmont loblolly pine forests . In K. Connor, editor. Proceedings, 12th Southern Silvicultural Research Conference, Biloxi, MS. Gen. Tech. Rep. SRS– 71. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. Pp. 25-29.
  • Phillips, R.J., T.A. Waldrop, G.L. Chapman, H.H. Mohr, M.A. Callaham, and C.T. Flint, Jr. 2004. Effects of fuel-reduction techniques on vegetative composition of Piedmont loblolly-shortleaf pine communities: Preliminary results of the National Fire and Fire Surrogate Study . In K. Connor, editor. Proceedings, 12th Southern Silvicultural Research Conference, Biloxi, MS. Gen. Tech. Rep. SRS–71. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. Pp. 44-47.
  • Stevenson, M., J. Coty, J. Stewart, T. Carlsen, and M. Callaham. 2001. Developing Terrestrial Trophic Models for Petroleum and Natural Gas Exploration and Production Sites: The Oklahoma Tallgrass Prairie Preserve Example. General Report, Lawrence Livermore National Laboratory, UCRL-ID-142165.
  • Blair, J.M., T.C. Todd, and M.A. Callaham, Jr. 2000. Responses of grassland soil invertebrates to natural and anthropogenic disturbances. Pages 43-71 in: D.C. Coleman and P.F. Hendrix (editors), Invertebrates as Webmasters in Ecosystems, CABI Publishing, New York.

Abstracts (Since 2009)

  • Oliver, A.K., S.P. Brown, M.A. Callaham, and A. Jumponnen. 2013. Ectomycorrhizal community responses to recurring prescribed fires in yellow pine forests: Effects of fire intervals and season. Oral presentation at the annual meetings of the American Phytopathological Society, Austin, TX, August 2013.
  • Gambrell, H.E., T.A. Waldrop, G. Wang, M.A. Callaham, and W.C. Bridges. 2013. Fuel dynamics across southern Appalachian landscapes. In: Guldin, James M., ed. 2013. Proceedings of the 15th biennial southern silvicultural research conference. e-Gen. Tech. Rep. SRS-GTR-175. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 361-366.
  • Callaham, M.A. Jr. and D.R. Coyle. 2013. Whence comes the Millennial soil ecology student, and what to do about the taxonomy thing? Oral presentation at the Soil Ecology Society biennial meetings, Rutgers University, Camden, NJ, June 2013.
  • Callaham, M.A., Jr., B.A. Snyder, S.W. James, and E. Oberg. 2013. Survey of earthworms, millipedes and isopods along a disturbance gradient at the George Washington Memorial Parkway, Virginia, USA. Poster presentation at the Soil Ecology Society biennial meetings, Rutgers University, Camden, NJ, June 2013.
  • Snyder, B.A., and M.A. Callaham, Jr. 2013. How well do we know our backyards? Lessons from Earthworms Across Kansas, a citizen-science survey. Poster presentation at the Soil Ecology Society biennial meetings, Rutgers University, Camden, NJ, June 2013.
  • Strickland, M.S., M.A. Bradford, and M.A. Callaham, Jr. 2013. Compositional and functional response of soil microbial communities to forest restoration. Poster presentation at the Soil Ecology Society biennial meetings, Rutgers University, Camden, NJ, June 2013.
  • Wenk, E.S., M.A. Callaham, Jr., and P.J. Hanson. 2013. Soil macroinvertebrates from deciduous forests spanning a temperature and precipitation gradient in the eastern USA. Poster presentation at the Soil Ecology Society biennial meetings, Rutgers University, Camden, NJ, June 2013.
  • Wu, D., and M.A. Callaham, Jr. 2013. Soil microarthropod biodiversity and soil carbon in a long-term prescribed fire experiment in north Florida, USA. Poster presentation at the Soil Ecology Society biennial meetings, Rutgers University, Camden, NJ, June 2013.
  • Straube, D., M.A. Callaham, Jr., P.F. Hendrix, and A. Juen. 2013. Can native carabid beetles regulate invasion of Asian earthworms? Poster presentation at 4th International Symposium on Biological Control of Arthropods, Pucón, Chile, March 2013.
  • Brown, S.P., A.K. Oliver, M.A. Callaham, Jr., and A. Jumpponen. 2012. Next-next generation sequencing for fungal community analysis: adoption of Ion Torrent sequencing platform. Poster presentation at 10th Ecological Genomics Conference, Kansas City, MO, October 2012.
  • Butt, K.R., C.N. Lowe, M.A. Callaham, Jr., and V. Nuutinen. 2012. An oasis of fertility on a barren island: Earthworms from Papadil, Isle of Rum. Poster presentation at the 16th International Colloquium of Soil Zoology, Coimbra, Portugal, August 2012.
  • Callaham, M.A., Jr., G.G. Brown, C. Fragoso, B.A. Snyder, and S.W. James. 2012. Earthworms in the non- glaciated Americas: Intentional introductions, invasions, soil quality indicators, and interactions with native species. Oral presentation at the 16th International Colloquium of Soil Zoology, Coimbra, Portugal, August, 2012.
  • Ikeda, H., M.A. Callaham, Jr., J.J. O’Brien, and B.S. Hornsby. 2012. Management of invasive earthworms, Amynthas agrestis, with prescribed fire in forests of the southeastern United States. Poster presentation at the 16th International Colloquium of Soil Zoology, Coimbra, Portugal, August 2012.
  • Lobe, J.W., P.F. Hendrix, M.A. Callaham, Jr., and J.L. Hanula. 2012. Removal of invasive shrubs (Ligustrum sinense) reduces invasive earthworm abundance and promotes recovery of native worms. Poster presentation at the 16th International Colloquium of Soil Zoology, Coimbra, Portugal, August 2012.
  • Snyder, B.A., and M.A. Callaham, Jr. 2012. Earthworms Across Kansas: A citizen-science earthworm survey. Poster presentation at the 16th International Colloquium of Soil Zoology, Coimbra, Portugal, August 2012.
  • Snyder, B.A., H. Ikeda, M.A. Callaham, Jr., and J.J. O’Brien. 2012. Ecology and management of invasive Amynthas agrestis (Megascolecidae) earthworms in Great Smoky Mountains National Park. Poster presentation at All-Taxa Biotic Inventory Meeting, Gatlinburg, TN, March 2012.
  • Callaham, M.A., Jr. 2012. A Survey of Eucalyptus plantings in the southern US to assess invasive behavior. Invited oral presentation at Symposium on the Assessment and Management of Environmental Issues Related to Eucalyptus Culture in the Southern United States, Charleston, SC, February, 2012.
  • Callaham, M.A., Jr., B.A. Snyder, P.F. Hendrix, and D.DeB. Richter. 2010. Exotic earthworms as friend and foe: Are they indicators of soil quality and health, or of soil damage and disturbance? Invited oral presentation at the 4th Latin American Oligochaete Taxonomy and Ecology Symposium, Curitiba, Brazil, October 2010.
  • Andrade, D.P., G.G. Brown, and M.A. Callaham, Jr. 2010. Ecological classification of Brazilian earthworms: A first attempt using morphological data. Poster presentation at the 4th Latin American Oligochaete Taxonomy and Ecology Symposium, Curitiba, Brazil, October, 2010.
  • Callaham, M.A., Jr., K.R. Butt, and C.N. Lowe. 2010. Effect of afforestation and landscape position on the stable isotopic signatures of soils, vegetation, and earthworms on the Isle of Rum, Scotland, UK. Poster presentation at 9th International Symposium on Earthworm Ecology, Xalapa, Vera Cruz, Mexico, September 2010.
  • Callaham, M.A., Jr., K.L. Lamoncha, J.J. O’Brien, and D.C. Coleman. 2010. Effects of forest management practices on soil mite community composition. Invited Oral Presentation at 13th International Congress of Acarology. Recife, Pernambuco, Brazil, August 2010.
  • Callaham, M.A., Jr., J.A. Stanturf, T.A. Waldrop, and R.J. DiCosty. 2009. Effect of prescribed fire on mercury concentrations in organic and mineral soil horizons of pine forests on the Southern Piedmont and Coastal Plain. Poster presentation at the Association for Fire Ecology, 4th International Congress, December 2009, Savannah, GA.
  • Callaham, M.A., Jr., G.A. Langhenry, J.L. Hanula, and S. Horn. 2009. Invasive earthworm responses to experimental removal of the invasive shrub Ligustrum sinense (Chinese Privet) in riparian forests of the southern Piedmont. Poster pres. at Soil Ecology Society biennial meeting, July, 2009, Burlinton, VT.
  • Callaham, M.A., Jr., R.J. DiCosty, K.L. Lamoncha, J.J. O’Brien, K.W. Outcalt, M.A. Williams, and J.A. Stanturf. 2009. Effects of long-term fire frequency manipulations on soil chemical and biological properties in a north Florida longleaf pine forest. Poster presentation at Global Soil Change workshop, Durham, NC June 2009.
  • Stanturf, J.A., S.L. Goodrick, M.A. Callaham, Jr. and J.J. O’Brien. 2009. Effects of Hurricane Disturbance on Soils in a Changing World. Invited symposium presentation at Soil Ecology Society biennial meeting, July, 2009, Burlinton, VT.

Funding Awards

  • Repeated prescribed fires and mechanical fuel treatments may promote multiple management objectives in the Southern Appalachian Mountains. Grant funded by the Inter-Agency Joint Fire Science Program. PI: Thomas A. Waldrop; Co-PI: Mac A. Callaham, Jr. June 2012 – September 2015, $357,444
  • Data Archival for Fire Studies in the Coastal Plain, Piedmont, and Southern Appalachian Mountains. Grant funded by the Inter-Agency Joint Fire Science Program. PI: Ross J. Phillips Co-PIs: Mac A. Callaham, Jr. and Thomas A. Waldrop. April 2012 – March 2013, $19,424.
  • Sustainability of selected Eucalyptus species for bioenergy feedstock: Invasiveness and fire risk in the Southern United States. Grant funded by Forest Service Research and Development, Woody Biomass, Bioenergy and Bioproducts Program. PI: Kimberly Crider; Co-PIs Mac Callaham, John Stanturf, Scott Goodrick, Ben Wigley. June 2011 – May 2012, $62,500.
  • Survey of selected soil invertebrates (earthworms, millipedes, macroarthropods, microarthropods) of the George Washington Memorial Parkway. Grant funded by National Park Service. PI: Mac A. Callaham, Jr. Co-PIs Samuel W. James, Bruce A. Snyder, and Briana Simmons. June 2011-June 2012, $20,000.
  • Diversity, Distribution, and Ecology of Native and Introduced Earthworms in Pristine and Restored Mata Atlantica Forests of Southern Brazil. Grant funded by the J. William Fulbright Foreign Scholarship Board, US Department of State. Award for sabbatical research in Curitiba, Parana State, Brazil, August – December 2010.
  • Characterizing Organic Carbon Flux from Litter Sources to Mineral-Soil Sinks: Establishment of a Distributed Enriched Background Isotope Study for AmeriFlux Hardwood Forests (EBIS-AmeriFlux). Grant funded by Terrestrial Carbon Processes Program of the US Department of Energy. Callaham awarded $20,000 for 2010-2011.
  • Earthworms Across Kansas: A Citizen Science Approach to an Invasive Species Survey. Grant funded by Kansas State University, Center for Engagement and Community Development. PI: Bruce A. Snyder; Co-PIs: Christopher B. Lavergne, Gregory Zolnerowich, Samuel W. James, and Mac A. Callaham, Jr. January 2010 – December 2011, $13,650.
  • Low-intensity fires may be adequate for stand replacement of Table Mountain pine (Pinus pungens Lamb.) stands in the Southern Appalachian Mountains. PI: Thomas A. Waldrop; Co-PIs: Mac A. Callaham, Jr. Grant awarded by Inter-agency Joint Fire Science Program, February, 2006-09, $125,000.
  • Does Prescribed Burning in Southern Forests Release Significant Amounts of Mercury to the Atmosphere? Principle Investigator, Ralph DiCosty Co-PIs: John Stanturf, Thomas Waldrop and Mac Callaham. Grant awarded by Joint Fire Science Program, 2005-2008. Grant awarded by Joint Fire Science Program, $306,052 over 3 yr.
  • Epidemic Southern Pine Beetle Attacks: A Problem of Fuel-Loading or an Opportunity for Management? Principal investigator: Thomas Waldrop. Co-investigators: Geoffrey Wang, and Mac Callaham. Grant awarded by Joint Fire Science Program, 2005-2009 $353,138 over 3 years.
  • Enriched Background Isotope Study (EBIS), Litter reciprocal transplant studies to understand sources, transport and fate of carbon in soils and watersheds. Coordinating Investigator: Paul J. Hanson. Co-Principal Investigators: Susan Trumbore, Julia Gaudinski, John Southon, Margaret Torn, Julie Jastrow, Philip Jardine, Wilfred M. Post, Patrick Mulholland, Charles T. Garten, Jr., J. Devereux Joslin, Mac A. Callaham, and Caroline A. Masiello. Grant awarded by Terrestrial Carbon Processes Program of the US Department of Energy. Callaham awarded $60,000 for 2003-2004.

Invited Seminars and Lectures

  • Invited seminar, University of Georgia, Department of Crop and Soil Science, September 2012
  • Invited seminar, Kansas State University, Division of Biology, February 2010
  • Invited seminar, Ohio State University, Ecology, Evolution, and Organismal Biology, April 2009
  • Invited seminar, University of Georgia, Odum School of Ecology, November 2007
  • Invited seminar, Ohio State University, May 2005
  • Invited seminar, Coweeta Hydrological Lab, April 2005
  • Invited seminar, Duke University, April 2003
  • Invited seminar, USDA Forest Service, Athens, GA, October 2002
  • Invited seminar, USDA Forest Service, Athens, GA, June 2002
  • Invited lecturer, Western Carolina University, April 2002
  • Invited seminar, Institute of Ecology, University of Georgia, March 2002

Honors and Awards

  • J.William Fulbright Foreign Reasearch Fellowship, August 2010
  • Recipient of Extra Effort Award for assistance in planning All Scientists Meeting, February 2007
  • Nominated for Chief’s Award for Early Career Scientists, USDA Forest Service, January 2005
  • Director’s Award for Early Career Scientists, Southern Research Station, December 2004
  • Certificate of Merit, for excellence in job performance, USDA Forest Service, October 2001
  • University Graduate Fellowship, Kansas State University, August 1996-August 1998
  • Finalist, Chris Edler award for excellence in ecological research, Kansas State University, 1998
  • Graduate Student Representative to LTER network, Konza Prairie Biological Station, 1997
  • National Science Foundation, Research Experience for Undergraduates Award, 1992

Memberships

  • Ecological Society of America
  • Soil Ecology Society
  • Soil Science Society of America

Certifications

  • USDA Forest Service, S-212 Wildfire Powersaw (Class B)
  • National Safety Council, Basic First Aid
  • National Safety Council, Adult Heartsaver CPR

Service and Volunteer Activities

  • Co-organizer for 4th ELAETAO (Latin American Earthworm Ecology meeting), Curitiba, Brazil, Oct. 2010
  • Co-organized symposium on disturbance and soil for Soil Ecology Society meetings, July 2009
  • Member, Review Team for Southern Research Station Science Delivery Program, October 2008
  • Member, USDA-NRI, Proposal Review Panel for Soil Processes Program, May 2008
  • Member, Organizing Committee for Southern Research Station’s All-Scientists Meeting, 2007
  • Organized Symposium for Ecological Society of America annual meetings in Memphis, TN 2006
  • Member of RGEG Scientist Review Panels, USDA Forest Service, Southern Research Station, 2004, 2006, 2007, 2008, 2009
  • Member of Scientist Retention and Review Panel, USDA-ARS, July, 2006
  • Organizing committee and served as guest editor of proceedings in Pedobiologia for Symposium honoring the career of David C. Coleman, Athens, GA, November, 2005
  • Member, Editorial Board, Applied Soil Ecology, 2005-2008.
  • Member, Science and Management Integration Committee, for Fire and Fire Surrogates Study, a USDA Forest Service National Study, 2001-2003
  • Presenter, Spring into Summer children’s program, Mountain Heritage Center, Cullowhee, NC, 2001
  • Scientific Judge, Tennessee State Science Bowl Competition, February 2001
  • Member, Science Advocacy Committee, ORNL, ESD
  • Invited participant, Soil ecotoxicology workshop, Aberdeen Proving Grounds, Feb. 2001
  • Assisted in Wetland Restoration project on Oak Ridge Research Reservation, 2000
  • Assisted in Waterfowl Surveys of Oak Ridge Research Reservation, 2000
  • Judge, Georgia State Science Fair, 1996, Georgia State Science Fair, 1996

Service on Advisory Committees of the following students:

  • Jenny Staeben, Clemson Entomology
  • Michael Vickers, Clemson Entomology
  • Eddie Gambrell, Clemson Forestry
  • Aaron Stottlemyer, Clemson Forestry
  • Bruce Snyder, UGA Ecology
  • Ching-Yu Huang, UGA Ecology
  • Carol Flaute, UGA Ecology
  • Michael Strickland, UGA Ecology
  • Carla Giai, Ohio State University Ecology, Evolution, and Organismal Biology
  • Joshua Lobe, UGA Ecology
  • Dexter Strother, UGA Ecology
  • Uma Nagendra, UGA Plant Biology
  • Chelsea Cunard, UGA Plant Biology

Proposal reviewer for:

  • Sigma Delta Epsilon – Graduate Women in Science Program
  • National Geographic Society
  • National Science Foundation, 2006, 2008
  • Tennessee Water Resources Research Center
  • USDA CSREES National Research Initiative

Manuscript reviewer for:

Acta Oecologica, Annual Reviews in Entomology, Applied Soil Ecology, Canadian Journal of Forest Research, Caribbean Journal of Science, Ecology, Ecological Engineering, Entomologia Experimentalis et Applicata, Environmental Toxicology and Chemistry, European Journal of Soil Biology, Forest Ecology and Management, Journal of Applied Ecology, Pedobiologia, Pesquisa Agropecuária Brasileira, Restoration Ecology, Soil Biology and Biochemistry, Soil Science Society of America Journal, Soil Sediment and Contamination

Center for Forest Disturbance Science (SRS RWU 4156)

University of Georgia
Forestry Sciences Laboratory
320 Green Street
Athens, GA 30602

Clemson University
233 Lehotsky Hall
Clemson, SC 29634