Mac A. Callaham, PhD

Team Leader/Research Ecologist

Southern Research Station

0000-0001-7915-427x

mac.a.callaham@usda.gov

Publications & Products
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Education

Treesearch Publications

Alexis A. Bernal, Scott L. Stephens, Mac A. Callaham, Brandon M. Collins, Justin S. Crotteau, Matthew B. Dickinson, Donald L. Hagan, Rachelle Hedges, Sharon M. Hood, Todd Hutchinson, Melanie K. Taylor, T. Adam. Coates. 2025. The national Fire and Fire Surrogate study: Effects of fuel treatments in the Western and Eastern United States after 20 years
Timothy Todd, John Blair, Mac A. Callaham. 2025. Nematode communities respond more to N enrichment than to plant community changes over decades in tallgrass prairie
ROBERTO CARRERA-MARTÍNEZ, Melanie K. Taylor, DANIEL JONES, SEAN D. SCHOVILLE, BRUCE A. SNYDER, Mac A. Callaham. 2025. The unseen diversity of the semi-aquatic earthworms of the genus Sparganophilus (Oligochaeta: Sparganophilidae) from the Southeastern Appalachian Piedmont
Michael Ulyshen, Cory K. Adams, Jacqui Adams, Susan B. Adams, Mickey Bland, Don C. Bragg, Chuck Burdine, Mac A. Callaham, Richard Chaney, Gregg Chapman, Patsy Clinton, Cinnamon Dixon, Jacob Floyd, Phillip Jordan, Tara L. Keyser, Stephanie H. Laseter, Rachel Mallinger, Virginia McDaniel, Bryan Mudder, C. Dana Nelson, Katherine Odanaka, A. Christopher Oishi, Shawna L. Reid, Samm Reynolds, Kevin Robertson, Daniel Saenz, Mary Anne Sayer, Nathan Schiff, Brian Scholtens, Joel Scott, Martin Spetich, Melanie K. Taylor, John Willis, Andrew D. Young. 2024. Spatiotemporal patterns of forest pollinator diversity across the southeastern United States
Joseph M. McGee, Roberto Carrera-Martinez, Mac A. Callaham, Bruce A. Snyder. 2024. New records of earthworms (Clitellata: Oligochaeta) from Georgia, USA, including eight new state records
Chase K. Glenn, Omar El Hajj, Zachary McQueen, Ryan P. Poland, Robert Penland, Elijah T. Roberts, Jonathan H. Choi, Bin Bai, Nara Shin, Anita Anosike, Kruthika V Kumar, Muhammad Isa Abdurrahman, Pengfei Liu, I. Jonathan Amster, Geoffrey D. Smith, Steve Flanagan, Mac A. Callaham, E. Louise Loudermilk, Joseph J. O'Brien, Rawad Saleh. 2024. Brown Carbon Emissions from Biomass Burning under Simulated Wildfire and Prescribed-Fire Conditions
Mingrui Sun, Chase K. Glenn, Omar El Hajj, Kruthika V Kumar, Anita Anosike, Robert Penland, Mac A. Callaham, E. Louise Loudermilk, Joseph J. O’Brien, Rawad Saleh, Geoffrey D. Smith. 2024. Aqueous Photolysis of Water-Soluble Brown Carbon from Simulated Prescribed and Wildfire Biomass Burning
Melanie K. Taylor, Michael Ulyshen, Scott Horn, Emilee Poole, Mac A. Callaham. 2024. Variation in the contribution of macroinvertebrates to wood decomposition as it progresses
Sam Fox, Melanie K. Taylor, Mac A. Callaham, Ari Jumpponen. 2024. Fire-excluded and frequently burned longleaf pine forests have contrasting soil microbial communities
Kevin R. Butt, Mac A. Callaham. 2023. Earthworms from soils developed after 80 years under tree monocultures at Holt Down, Hampshire, UK
Yurong Yang, Mac A. Callaham, Xuefeng Wu, Yufeng Zhang, Donghui Wu, Deli Wang. 2023. Gut microbial communities and their potential roles in cellulose digestion and thermal adaptation of earthworms
Nuria Sánchez-López, Andrew T. Hudak, Luigi Boschetti, Carlos A. Silva, Kevin Robertson, E Louise Loudermilk, Benjamin C. Bright, Mac A. Callaham, Melanie K. Taylor. 2023. A spatially explicit model of tree leaf litter accumulation in fire maintained longleaf pine forests of the southeastern US
Melanie K. Taylor, Dexter Strother, Mac A. Callaham. 2023. Fire exclusion reduces A‐horizon thickness in a long‐term prescribed fire experiment in Spodosols of northern Florida, USA
Steven A. Flanagan, J. Kevin Hiers, Mac A. Callaham, Scott Goodrick, Joseph J. O’Brien, Gregory Starr, Susanne Wiesner, Kier D. Klepzig, E. Louise. Loudermilk. 2021. A model comparison of fire return interval impacts on carbon and species dynamics in a southeastern U.S. pineland
ROBERTO CARRERA-MARTÍNEZ, DANIEL JONES, SEAN D. SCHOVILLE, BRUCE A. SNYDER, Mac A. Callaham. 2021. Two new species of Bimastos (Oligochaeta, Lumbricidae) from the Southern Appalachian Mountains, North America
Chih-Han Chang, Marie L. C. Bartz, George Brown, Mac A. Callaham, Erin K. Cameron, Andrea Dávalos, Annise Dobson, Josef H. Görres, Bradley M. Herrick, Hiroshi Ikeda, Samuel W. James, Marie R. Johnston, Timothy S. McCay, Damhnait McHugh, Yukio Minamiya, Maryam Nouri-Aiin, Marta Novo, Jaime Ortiz-Pachar, Rebecca A. Pinder, Tami Ransom, Justin B. Richardson, Bruce A. Snyder, Katalin Szlavecz. 2021. The second wave of earthworm invasions in North America: biology, environmental impacts, management and control of invasive jumping worms
Susan E. Meyer, Mac A. Callaham, Jane E. Stewart, Steve D. Warren. 2021. Invasive Species Response to Natural and Anthropogenic Disturbance
Chelcy F. Miniat, Jennifer M. Fraterrigo, Steven T. Brantley, Mac A. Callaham, Susan Cordell, Jeffrey S. Dukes, Christian P. Giardina, Shibu Jose, Gary Lovett. 2021. Impacts of Invasive Species on Forest and Grassland Ecosystem Processes in the United States
Timothy S. McCay, George Brown, Mac A. Callaham, Chih-Han Chang, Andrea Dávalos, Annise Dobson, Josef H. Görres, Bradley M. Herrick, Samuel W. James, Marie R. Johnston, Damhnait McHugh, Tanya Minteer, Jean-David Moore, Maryam Nouri-Aiin, Marta Novo, Jaime Ortiz-Pachar, Rebecca A. Pinder, Justin B. Richardson, Bruce A. Snyder, Katalin Szlavecz. 2020. Tools for monitoring and study of peregrine pheretimoid earthworms (Megascolecidae)
Dana Carpenter, Melanie K. Taylor, Mac A. Callaham, J. Kevin Hiers, E. Louise Loudermilk, Joseph J. O'Brien, Nina Wurzburger. 2020. Benefit or Liability? The Ectomycorrhizal Association May Undermine Tree Adaptations to Fire After Long-term Fire Exclusion
Stephanie A. Yarwood, Elizabeth M. Bach, Matt D. Busse, Jane E. Smith, Mac A. Callaham, Chih-Han Chang, Taniya Roy Chowdhury, Steve D. Warren. 2020. Forest and rangeland soil biodiversity [Chapter 5]
Jenna Christine Stockton, John Paul Schmidt, Dan Wallace, Mac A. Callaham, Daniel Markewitz. 2020. Management of longleaf pine ecosystems: can soil map units improve evaluations of soil change?
Hiroshi Ikeda, Mac A. Callaham, Richard P. Shefferson, Evelyn S. Wenk, Carlos Fragoso. 2020. A comparison of latitudinal species diversity patterns between riverine and terrestrial earthworms from the North American temperate zone
Helen R. P. Phillips, Carlos A. Guerra, Marie L. C. Bartz, Maria J. I Briones, George Brown, Thomas W. Crowther, Olga Ferlian, Konstantin B. Gongalsky, Johan van den Hoogen, Julia Krebs, Alberto Orgiazzi, Devin Routh, Benjamin Schwarz, Elizabeth M. Bach, Joanne M. Bennett, Ulrich Brose, Thibaud Decaëns, Birgitta König-Ries, Michel Loreau, Jérôme Mathieu, Christian Mulder, Wim H. van der Putten, Kelly S. Ramirez, Matthias C. Rillig, David Russell, Michiel Rutgers, Madhav P. Thakur, Franciska T. de Vries, Diana H. Wall, David A. Wardle, Miwa Arai, Fredrick O. Ayuke, Geoff H. Baker, Robin Beauséjour, José C. Bedano, Klaus Birkhofer, Eric Blanchart, Bernd Blossey, Thomas Bolger, Robert L. Bradley, Mac A. Callaham, Yvan Capowiez, Mark E. Caulfield, Amy Choi, Felicity V Crotty, Jasmine M. Crumsey, Andrea Dávalos, Darío J. Diaz Cosin, Anahí Dominguez, Andrés Esteban Duhour, Nick van Eekeren, Christoph Emmerling, Liliana B. Falco, Rosa Fernández, Steven J. Fonte, Carlos Fragoso, André L. C. Franco, Martine Fugère, Abegail T. Fusilero, Shaieste Gholami, Michael J. Gundale, Mónica Gutiérrez López, Davorka K. Hackenberger, Luis M. Hernández, Takuo Hishi, Andrew R. Holdsworth, Martin Holmstrup, Kristine N. Hopfensperger, Esperanza Huerta Lwanga, Veikko Huhta, Tunsisa T. Hurisso, Basil V Iannone, Madalina Iordache, Monika Joschko, Nobuhiro Kaneko, Radoslava Kanianska, Aidan M. Keith, Courtland A. Kelly, Maria L. Kernecker, Jonatan Klaminder, Armand W. Koné, Yahya Kooch, Sanna T. Kukkonen, H. Lalthanzara, Daniel R. Lammel, Iurii M. Lebedev, Yiqing Li, Juan B. Jesus Lidon, Noa K. Lincoln, Scott R. Loss, Raphael Marichal, Radim Matula, Jan Hendrik Moos, Gerardo Moreno, Alejandro Morón-Ríos, Bart Muys, Johan Neirynck, Lindsey Norgrove, Marta Novo, Visa Nuutinen, Victoria Nuzzo, Johan Pansu, Shishir Paudel, Guénola Pérès, Lorenzo Pérez-Camacho, Raúl Piñeiro, Jean-François Ponge, Muhammad Imtiaz Rashid, Salvador Rebollo, Javier Rodeiro-Iglesias, Miguel Á. Rodríguez, Alexander M. Roth, Guillaume X. Rousseau, Anna Rozen, Ehsan Sayad, Loes van Schaik, Bryant C. Scharenbroch, Michael Schirrmann, Olaf Schmidt, Boris Schröder, Julia Seeber, Maxim P. Shashkov, Jaswinder Singh, Sandy M. Smith, Michael Steinwandter, José A. Talavera, Dolores Trigo, Jiro Tsukamoto, Anne W. de Valença, Steven J. Vanek, Iñigo Virto, Adrian A. Wackett, Matthew W. Warren, Nathaniel H. Wehr, Joann K. Whalen, Michael B. Wironen, Volkmar Wolters, Irina V Zenkova, Weixin Zhang, Erin K. Cameron, Nico Eisenhauer. 2019. Global distribution of earthworm diversity
Jennifer D. Knoepp, Mary Beth Adams, Robert Harrison, Larry West, Stephanie H. Laseter, Daniel Markewitz, Daniel D. Richter, Mac A. Callaham. 2019. History of forest soils knowledge and research [Chapter 4]
Jennifer D. Knoepp, Daniel Markewitz, Mac A. Callaham, Mary Beth Adams, Stephanie H. Laseter, Larry West, Robert Harrison, Daniel D. Richter. 2019. Long-term forest soils research: Lessons learned from the US experience [Chapter 19]
Bruce A. Snyder, Mac A. Callaham. 2019. Soil fauna and their potential responses to warmer soils
Matt R. Whiles, Bruce A. Snyder, Brent L. Brock, Sophia Bonjour, Mac A. Callaham, Clinton K. Meyer, Alex Bell. 2019. Periodical cicada emergence resource pulse tracks forest expansion in a tallgrass prairie landscape
James H. Blackmon IV, Melanie K. Taylor, Roberto Carrera-Martinez, Bruce A. Snyder, Mac A. Callaham. 2019. Temperature affects hatching success of cocoons in the invasive Asian earthwork Amynthas agrestis from the southern Appalachians
Steven A. Flanagan, Smriti Bhotika, Christie Hawley, Gregory Starr, Susanne Wiesner, J. Kevin Hiers, Joseph J. O'Brien, Scott Goodrick, Mac A. Callaham, Robert M. Scheller, Kier D. Klepzig, R. Scott Taylor, E. Louise Loudermilk. 2019. Quantifying carbon and species dynamics under different fire regimes in a southeastern U.S. pineland
Roberto Carrera-Martínez, Mac A. Callaham. 2018. Observations on an epilobic Lumbricus rubellus (Oligochaeta, Lumbricidae) from the Great Smoky Mountains National Park, Tennessee, USA
Liang CHANG, Baifeng WANG, Xianghui LIU, Mac A. Callaham, Feng GE. 2017. Recovery of Collembola in Pinus tabulaeformis plantations
Meixiang Gao, Melanie K. Taylor, Mac A. Callaham. 2017. Trophic dynamics in a simple experimental ecosystem: Interactions among centipedes, Collembola and introduced earthworms
Michael S. Strickland, Mac A. Callaham, Emile S. Gardiner, John A. Stanturf, Jonathan W. Leff, Noah Fierer, Mark A. Bradford. 2017. Response of soil microbial community composition and function to a bottomland forest restoration intensity gradient
David R. Coyle, Uma J. Nagendra, Melanie K. Taylor, J. Holly Campbell, Chelsea E. Cunard, Aaron H. Joslin, Abha Mundepi, Carly A. Phillips, Mac A. Callaham. 2017. Soil fauna responses to natural disturbances, invasive species, and global climate change: Current state of the science and a call to action
Mac A. Callaham. 2016. Introduction
Mac A. Callaham, Bruce A. Snyder, Samuel W. James, Erik T. Oberg. 2016. Evidence for ongoing introduction of non-native earthworms in the Washington, DC metropolitan area
Kevin R. Butt, Mac A. Callaham, E. Louise Loudermilk, Rowan Blaik. 2016. Action of earthworms on flint burial - a return to Darwin's estate
K.R. Butt, C.N. Lowe, Mac A. Callaham, V. Nuutinen. 2016. An oasis of fertility on a barren island: earthworms at Papadil, Isle of Rum
Evelyn Wenk, Mac A. Callaham, Joseph J. O'Brien, Paul J. Hanson. 2016. Soil macroinvertebrate communities across a productivity gradient in deciduous forests of eastern North America
Daniel deB Richter, Allan R. Bacon, Sharon A. Billings, Dan Binkley, Marilyn Buford, Mac A. Callaham, Amy E. Curry, Ryan L. Fimmen, A. Stuart Grandy, Paul R. Heine, Michael Hofmockel, Jason A. Jackson, Elisabeth LeMaster, Jianwei Li, Daniel Markewitz, Megan L. Mobley, Mary W. Morrison, Michael S. Strickland, Thomas Waldrop, Carol G. Wells. 2015. Evolution of soil, ecosystem, and critical zone research at the USDA FS Calhoun Experimental Forest
Alena K. Oliver, Shawn P. Brown, Mac A. Callaham, Ari Jumpponen. 2015. Polymerase matters: non-proofreading enzymes inflate fungal community richness estimates by up to 15 %
Alena K. Oliver, Mac A. Callaham, Ari Jumpponen. 2015. Soil fungal communities respond compositionally to recurring frequent prescribed burning in a managed southeastern US forest ecosystem
Hiroshi Ikeda, Mac A. Callaham, Joseph J. O'Brien, Ben Hornsby, Evelyn S. Wenk. 2015. Can the invasive earthworm, Amynthas agrestis, be controlled with prescribed fire?
Bing Zhang, Liang Chang, Zhen Ni, Mac A. Callaham, Xin Sun, Donghui Wu. 2014. Effects of land use changes on winter-active Collembola in Sanjiang Plain of China
Karis J. McFarlane, Margaret S. Torn, Paul J. Hanson, Rachel C. Porras, Chris Swanston, Mac A. Callaham, Thomas P. Guilderson. 2013. Comparison of soil organic matter dynamics at five temperate deciduous forests with physical fractionation and radiocarbon measurements
Bruce Snyder, Mac A. Callaham, Christopher Lowe, Paul Hendrix. 2013. Earthworm invasion in North America: Food resource competition affects native millipede survival and invasive earthworm reproduction
Aaron D. Stottlemyer, G. Geoff Wang, Tom Waldrop, Christina E. Wells, Mac A. Callaham. 2013. Short-term effects of fuel reduction treatments on soil mycorrhizal inoculum potential in beetle-killed stands
Horace E. Gambrell, Tom Waldrop, G. Geoff Wang, Mac A. Callaham, William C. Bridges. 2013. Fuel dynamics across southern Appalachian landscapes
Mac A. Callaham, John A. Stanturf, William J. Hammond, Donald L. Rockwood, Evelyn Wenk, Joseph J. O'Brien. 2013. Survey to evaluate escape of Eucalyptus spp. seedlings from plantations in southeastern USA
Mac A. Callaham, D.A. Crossley, D.C. Coleman. 2012. Soil Fauna: Macroarthropods
P.C.J. van Vliet, P.F. Hendrix, Mac A. Callaham. 2012. Soil Fauna: Earthworms
Mac A. Callaham, Andy Scott, Joseph J. O'Brien, John A. Stanturf. 2012. Cumulative effects of fuel management on the soils of eastern U.S
Mac A. Callaham. 2009. Grunting for worms: reactions of Diplocardia to seismic vibrations
D.J. Kitchen, J.M. Blair, Mac A. Callaham. 2009. Annual fire and mowing alter biomass, depth distribution, and C and N content of roots in soil in tallgrass prairie
Joseph J. O'Brien, J.K. Hiers, Mac A. Callaham, R.J. Mitchell, S. Jack. 2008. Interactions among overstory structure, seedling life-history traits and fire in frequently burned neotropical pine forests
Mac A. Callaham. 2008. Integrating soil ecological knowledge into restoration management
Mac A. Callaham. 2008. Pandora’s box contained bait: The global problem of introduced earthworms
Mac A. Callaham. 2008. Special Section: Soil Ecology and Restoration Ecology
Liam Heneghan, Susan P. Miller, Sara Baer, Mac A. Callaham, James Montgomery, Mitchell Pavao-Zuckerman, Charles C. Rhoades, Sarah Richardson. 2008. Integrating soil ecological knowledge into restoration management
Mac A. Callaham, Charles C. Rhoades, Liam Heneghan. 2008. A striking profile: Soil ecological knowledge in restoration management and science
Joseph J. O'Brien, Caroline Stahala, Gina P. Mori, Mac A. Callaham, Chris M. Bergh. 2006. Effects of prescribed fire on conditions inside a Cuban parrot (Amazona Leucocephala) surrogate nesting cavity on Great Abaco, Bahamas
Ralph J. DiCosty, Mac A. Callaham, John A. Stanturf. 2006. Atmospheric deposition and re-emission of mercury estimated in a prescribed forest-fire experiment in Florida, USA
Mac A. Callaham, Grizelle Gonzalez, Cynthia M Hale, Liam Henegham, Sharon L. Lachnicht, Xiaoming Zou. 2006. Policy and management responses to earthworm invasions in North America
Ross Phillips, Thomas A. Waldrop, Gregg Chapman, Helen Mohr, Mac A. Callaham, Charles Flint. 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
Mac A. Callaham, Peter Anderson, Thomas A. Waldrop, Darren J. Lione, Victor B. Shelburne. 2004. Litter Decomposition and Soil Respiration Responses to Fuel-Reduction Treatments in Piedmond Loblolly Pine Forests
Mac A. Callaham, Arthur J. Stewart, Clara Alarcon, Sara J. McMillen. 2002. Effects of Earthworm (Eisenia fetida) and Wheat (Triticum aestivum) Straw Additions on Selected Properties of Petroleum-Contaminated Soils
Mac A. Callaham, Matt R. Whiles, John M. Blair. 2002. Annual Fire, Mowing and Fertilization Effects on Two Cicada Species (Homoptera: Cicadidae) in Tallgrass Prairie
Mac A. Callaham, John M. Blair. 2001. Different behavioral patterns of the earthworms Octolasion tyrtaeum and Diplocardia spp. in tallgrass prairie soils: potential influences on plant growth