Research Ecologist, USDA Forest Service Southern Research Station; Director, Calhoun Experimental Forest
USFS Southern Research - USDA Forest Service - Southern Research Station
Callaham's USFS Southern Research page
PhD, Biology, Kansas State University, 2000
Fundamentals of Soil Ecology, 3rd Edition. Coleman, D.C., M.A. Callaham, Jr., and D.A. Crossley, Jr. (2017): Academic Press, London, 369 pp.
Soil fauna responses to natural disturbances, invasive species, and global climate change: Current state of the science and a call to action. Coyle, D.R., U.J. Nagendra, M.K. Taylor, J.H. Campbell, C.E. Cunard, A.H. Joslin, A. Mundepi, C.A. Phillips, and M.A. Callaham, Jr. (2017): Soil Biology and Biochemistry 110:116-133
Trophic dynamics in a simple experimental ecosystem: Interactions among centipedes, Collembola and introduced earthworms. Gao, Meixiang, Melanie K.Taylor, and Mac A. Callaham Jr. (2017): Soil Biology and Biochemistry 115: 66-72
Evolution of Soil, Ecosystem, and Critical Zone Research at the USDA FS Calhoun Experimental Forest. Richter, D. deB., A.R. Bacon, S.A. Billings, D. Binkley, M. Buford, M.A. Callaham, A.E. Curry, R.L. Fimmen, A. S. Grandy, P.R. Heine, M. Hofmockel, J.A. Jackson, E. LeMaster, J. Li, D. Markewitz, M.L. Mobley, M.W. Morrison, M.S. Strickland, T. Waldrop, and C. G. Wells (2014): In: USDA Forest Service Experimental Forests and Ranges: Research for the Long Term, Chapter: 18, Publisher: Springer Verlag, Editors: D.C. Hayes, S.L. Stout, R.H. Crawford, A.P. Hoover, pp. 405-433
Long-term soil experiments: Keys to managing Earth's rapidly changing ecosystems. Richter, Daniel deB. Jr., Michael Hofmockel, Mac A. Callaham, David S. Powlson, and Pete Smith (2007): Soil Science Society of America Journal 71 (2): 266-279
Long-term land-use effects on soil invertebrate communities in Southern Piedmont soils, USA. Callaham Jr., M.A., D.D. Richter Jr., D.C. Coleman, M. Hofmockel (2006): European Journal of Soil Biology 42 (Supplement 1): S150-S156
Papers and books that explicitly acknowledge a CZO grant are highlighted in PALE ORANGE.
Know your water, know your soil, know your worms? – Earthworms and biogeochemistry at the margins of North American freshwater. Callaham, M.A., Jr., R.R. Carrera-Martínez, and M.K. Taylor (2019): Oral presentation at the Society for Freshwater Science annual meeting, Salt Lake City, Utah, May 2019
Influence of earthworms (Oligochaeta: Sparganophilidae) on decomposition of riparian leaf litter. Carrera-Martínez, R.R., M.K. Taylor, D. Markewitz, L.A. Sutter, and M.A. Callaham, Jr. (2019): Poster presentation at the Society for Freshwater Science annual meeting, Salt Lake City, Utah, May 2019
The shovel – a surprisingly effective, but often overlooked tool for soil biodiversity discovery. Callaham, M.A., Jr., R. Carrera-Martínez, S.W. James, B.A. Snyder, and M.K. Taylor (2018): Ecological Society of America Annual Meeting, August 5-10, 2018, New Orleans, Louisiana
Opening a can of worms: Uncovering the diversity of native semiaquatic earthworms from the Southern Appalachian Piedmont of the US. Carrera-Martínez, R., M.K. Taylor, and M.A. Callaham, Jr. (2018): Ecological Society of America Annual Meeting, August 5-10, 2018, New Orleans, Louisiana
Landuse legacies of old-field succession and soil structure at the Calhoun Critical Zone Observatory in SC, USA. Brecheisen, Zachary Scott, Daniel deB. Richter, Mac Callaham, Roberto Carrera-Martinez, Paul Heine (2017): American Geophysical Union 2017 Fall Meeting, New Orleans, Louisiana, 11-15 December 2017
Regeneration of critical zone structure: Macroporosity and soil gasses in old-field forest soils of the southeastern US. Brecheisen, Zachary, Mac A. Callaham Jr., Daniel deB. Richter (2017): Soil Science Society of America International Annual Meeting, Tampa, FL, 22-25 Oct. 2017
How to make soil: Add parent material, soil animals, roots, weather, and set the blender on "liquefy". Callaham, M.A. Jr., K.R. Butt, J. Görres, D.deB. Richter, and Z. Brecheisen (2017): 5th Nereis Park Conference, SUNY Stony Brook, Southampton, NY, 8-11 August 2017
Past, present and future earthworm-related research at the Calhoun CZO. Callaham, Mac, Roberto Carrera-Martínez, Zach Brecheisen, Melanie Taylor, Dan Markewitz, and Dan Richter (2017): Calhoun CZO 2017 Summer Science Meeting, Union, SC, 17-18 May 2017
Integrating soil ecological knowledge into restoration: How relevant is theory to practice?. Baer, S.B., and M.A. Callaham (2016): Ecological Society of America Annual Meeting, Ft. Lauderdale, FL, USA, August 2016
Soil invertebrates in ecosystem restoration: Indicators, exotic species, and engineers on the slow train to recovery. Callaham, M.A., Jr. (2016): Soil Science Society of America Annual Meeting, Phoenix, AZ, 6-9 November 2016
Do non-native earthworms influence trophic dynamics in experimental soil ecosystems?. Gao, M., M.K. Taylor, and M.A. Callaham, Jr. (2016): International Visitors Program Science Leadership Forum, Washington, DC, October 2016
What about earthworms? Human influence on earthworm communities at the Calhoun Experimental Forest. Callaham, M. (2015): Calhoun CZO 2015 Summer Science Meeting
31 May 2019 - Mac Callaham and his group shared their research on earthworms at the May 2019 Society for Freshwater Science annual meeting in Salt Lake City.
03 Jun 2016 - The Calhoun CZO held its third annual Summer Science Days meeting. In the photo, Calhoun researchers discuss a 18th-19th century pine root...