Biology / Ecology is one of more than 16 discipline tags that we use to categorize and aggregate our interdisciplinary information within and across CZOs. Much of our information has been tagged with 2-3 disciplines.
14 People
Cross-CZO COLLABORATOR
INVESTIGATOR
INVESTIGATOR
INVESTIGATOR
STAFF, Data Manager, Field Manager
COLLABORATOR
COLLABORATOR
Cross-CZO INVESTIGATOR
COLLABORATOR
INVESTIGATOR
INVESTIGATOR
Cross-CZO INVESTIGATOR, Visiting/Affiliate, COLLABORATOR
STAFF
Calhoun CZO - GIS/Map Data, LiDAR - Canopy Height (2014)
1 components •
Calhoun Critical Zone Observatory •
GIS / Remote Sensing, Biology / Ecology •
Brecheisen, Zachary S.
Calhoun CZO - Soil Geochemistry - Soil organic matter transformations (2015)
1 components •
Calhoun Long-Term Soil-Ecosystem Plots and Reference Areas •
Biogeochemistry, Biology / Ecology, Soil Science / Pedology •
Min, K.; Flournoy, R.; Heroneme, C.; Barger, K.; Lehmeier, C.A.; Heine, P.; Richter, Daniel deB.; Billings, S.A.
Calhoun CZO - Vegetation - Litterfall (2014-2017)
1 components •
Calhoun CZO Research Area 1, Calhoun CZO Research Area 2, Calhoun CZO Research Area 3, Calhoun CZO Research Area 4, Calhoun CZO Research Area 5 •
Biology / Ecology •
Cook, Charles W.; O'Neill, K. P.; Richter, Daniel deB.
Calhoun CZO - Vegetation - Leaf Area Index (2014)
1 components •
Calhoun CZO Research Area 1, Calhoun CZO Research Area 4, Calhoun Experimental Forest and Eco-hydrology Experiments •
Biology / Ecology •
Cook, Charles W.
Calhoun CZO - Vegetation - Tree Survey (2014-2017)
1 components •
Calhoun Experimental Forest and Eco-hydrology Experiments, Calhoun Long-Term Soil-Ecosystem Plots and Reference Areas •
Biology / Ecology •
Cook, Charles W.; Brecheisen, Z.; Richter, Daniel deB.
Calhoun CZO - Soil Porosity, Soil Invertebrates (2015-2017)
2 components •
Calhoun CZO Research Area 1, Calhoun CZO Research Area 4, Calhoun CZO Research Area 7 •
Soil Science / Pedology, Biology / Ecology •
Brecheisen, Zachary S..; Callaham, M.A.; Heine, P.R.; Cook, Charles W.; Richter, Daniel deB.
Calhoun CZO - Soil Biogeochemistry (2015-2016)
1 components •
Calhoun CZO Research Area 1, Calhoun CZO Research Area 2, Calhoun CZO Research Area 7, Calhoun CZO Research Area 8 •
Biogeochemistry, Biology / Ecology, Soil Science / Pedology •
Sharon Billings; Christoph Lehmeier; Kyungjin Min; Samik Bagchi; Emma Hauser; Keelan Barger; Samantha Elledge; Rebecca Flournoy; Carl Heroneme; Hanna Rankin; Rena Stair
National - LiDAR, Land Cover, GIS/Map Data - OpenTopography (2010-2017)
18 components •
Boulder Creek Watershed, Eel River Watershed, Jemez River Basin, Reynolds Creek Experimental Watershed, Susquehanna Shale Hills Critical Zone Observatory, Northeastern Puerto Rico and the Luquillo Mountains, Sangamon River Basin, Clear Creek Watershed, Calhoun Critical Zone Observatory, Providence Creek Headwater Catchments (1660 - 2115 m elevation) •
Geomorphology, GIS / Remote Sensing, Hydrology, Biology / Ecology •
National Center for Airborne Laser Mapping; Boulder Creek Critical Zone Observatory; Calhoun Critical Zone Observatory; University of Arizona; University of California Merced; Valles Caldera National Preserve; Bandelier National Monument; National Park Service; Jemez River Basin and Santa Catalina Mountains Critical Zone Observatory; Luquillo Critical Zone Observatory; Reynolds Creek CZO; Eel River CZO; Shale Hills CZO
National - Soil Gas - CO2 and O2 (2014-2017)
2 components •
Bigelow Site (High-Elevation), Jemez 2013 Burned ZOB, Jemez Unburned Site, Calhoun CZO Research Area 1, Garner Run - Sandstone Forested, Northeastern Puerto Rico and the Luquillo Mountains •
Biogeochemistry, Climatology / Meteorology, Soil Science / Pedology, Biology / Ecology •
Brecheisen, Zachary; Chorover, Jon; Kaye, Jason; Silver, Whendee; Abramson, Nate; Barron-Gafford, Greg; Condon, Katherine E.; Cook, Charles W.; Hill, Lillian; Losleben, Mark; Minor, Rebecca; O'Connell, Christine; Richter, Daniel deB.; Durcik, Matej
Dynamic Persistence of Alternative States
Following disturbance, ecosystems start recovering along trajectories that will eventually lead to a stable state.
2020
Persistent anthropogenic legacies structure depth dependence of regenerating rooting systems and their functions. Hauser, Emma, Daniel D. Richter, Daniel Markewitz, Zachary Brecheisen, and Sharon A. Billings (2020): Biogeochemistry 147: 259-275
2020
Bioavailability of Phosphorus to Loblolly Pine (Pinus taeda L) and Red Maple (Acer rubrum L) in Clay and Saprolite from the Southeastern Piedmont, USA. Wang, Zhine, Aaron Thompson, Lori Sutter, and Daniel Markewitz (2020): ASA-CSSA-SSSA International Annual Meeting, 9-13 November 2020
2019
Ecological and genomic attributes of novel bacterial taxa that thrive in subsurface soil horizons. Brewer, Tess E., Emma L. Aronson, Keshav Arogyaswamy, Sharon A. Billings, Jon K. Botthoff, Ashley N. Campbell, Nicholas C. Dove, Dawson Fairbanks, Rachel E. Gallery, Stephen C. Hart, Jason Kaye, Gary King, Geoffrey Logan, Kathleen A. Lohse, Mia R. Maltz, Emilio Mayorga, Caitlin O’Neill, Sarah M. Owens, Aaron Packman, Jennifer Pett-Ridge, Alain F. Plante, Daniel D. Richter, Whendee L. Silver, Wendy H. Yang, Noah Fierer (2019): mBio Oct 2019, 10 (5) e01318-19 Cross-CZO National
2019
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): Society for Freshwater Science annual meeting, Salt Lake City, Utah, May 2019
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): Society for Freshwater Science annual meeting, Salt Lake City, Utah, May 2019
2019
Rooting Depths Change on a Global Scale in the Anthropocene. Hauser, Emma, Pamela L Sullivan, Sharon A Billings (2019): American Geophysical Union Fall Meeting, San Francisco, CA, December 9-13, 2019
2019
Detecting Climate-Stress Induced Forest Mortality Before the Canonical Symptoms Appear. Kumar, Mukesh, Yanlan Liu, Gabriel George Katul, Amilcare M Porporato (2019): American Geophysical Union Fall Meeting, San Francisco, CA, December 9-13, 2019
2019
Impacts of Climate Variation and Change on Hydrologic and Vegetation Dynamics. Liu, Yanlan (2019): PhD Dissertation, Duke University
2019
Reduced resilience as an early warning signal of forest mortality. Liu, Yanlan, Mukesh Kumar, Gabriel G. Katul, & Amilcare Porporato (2019): Nature Climate Change 9: 880-885
2019
Ice Formation and Microbes: A Microscale Perspective on Interactive Biophysical Weathering Agents in the Critical Zone. Lybrand, Rebecca, George Dragos Zaharescu, Jason Austin, Swarup China, Rachel E. Gallery, Paul A. Schroeder, Daniel Veghte, and Odeta Qafoku (2019): ASA-CSSA-SSSA International Annual Meeting, 10-13 Nov. 2019, San Antonio, Texas Cross-CZO
2019
Soil fauna and their potential responses to warmer soil. Snyder, B.A., and M.A. Callaham, Jr. (2019): In: Mohan, J.E. (Ed.), Ecosystem Consequences of Soil Warming: Microbes, Vegetation, Fauna and Soil Biogeochemistry. Pp. 279-296. Academic Press, London.
2018
Impact of climate-vegetation interactions on natural and disturbed landscape evolution: insights from the Calhoun Critical Zone Observatory. Bonetti, Sara; Ferguson, Terry; Richter, Daniel; Porporato, Amilcare (2018): European Geosciences Union General Assembly, 4-13 April, 2018, Vienna, Austria
2018
Macro to Micro Legacies of Landuse at the Calhoun Critical Zone Observatory. Brecheisen, Zachary S. (2018): PhD Dissertation, Duke University, Durham, North Carolina
2018
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
2018
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
2018
Distribution and diversity of semiaquatic Sparganophilidae earthworms in the Southern Appalachian Piedmont, USA. Carrera-Martínez, Roberto (2018): MS Thesis, University of Georgia
2018
The relative sensitivity of forest productivity to landscape position vs microtopography. Ghasemian, S., J. Kastens, S.A. Billings (2018): American Geophysical Union 2018 Fall Meeting, Washington, DC, 10-14 Dec 2018
2018
Unified representation of the C3, C4, and CAM photosynthetic pathways with the Photo3 model. Hartzell, Samantha, Mark S. Bartlett, and Amilcare Porporato (2018): Ecological Modelling 384: 173-187
2018
Potential impacts of climate change on tree mortality risk: Do plant hydraulic traits matter?. Kumar, M., Y. Liu, A. Parolari, C.-W. Huang, G.G. Katul, A.M. Porporato (2018): American Geophysical Union 2018 Fall Meeting, Washington, DC, 10-14 Dec 2018
2018
Synergistic data analytics and physical modeling for improved understanding of vegetation dynamics under climatological stress: a key uncertainty in ecosystem management. Liu, Y., M. Kumar, G.G. Katul, A. Parolari, A.M. Porporato, C.-W. Huang, A. Konings (2018): American Geophysical Union 2018 Fall Meeting, Washington, DC, 10-14 Dec 2018
2018
Reduced resilience as a potential early warning signal of forest mortality. Liu, Y., M. Kumar, G.G. Katul, and A. Porporato (2018): Ecological Society of America Annual Meeting, August 5-10, 2018, New Orleans, Louisiana
2018
The ecohydrological cost of lawns. Pelak, Norman F., and Amilcare Porporato (2018): American Geophysical Union Fall Meeting, Washington, DC, December 10-14, 2018
2018
Agricultural risk management under climate variability: the role of crop diversification. Porporato, Amilcare M., Samantha R Hartzell, Mark S Bartlett (2018): American Geophysical Union Fall Meeting, Washington, DC, December 10-14, 2018
2017
Soil biogeochemistry reveals the importance of deep roots as biotic controls of CZ evolution: a belowground analog to Ruddiman’s hypothesis. Billings, S.A., Sullivan, P.L., Richter, D.D., Lehmeier, C.A., Min, K., Bagchi, S., Flournoy, R., Hauser, E. (2017): Critical Zone Science: Current Advances and Future Opportunities, Arlington, VA, 4-6 June, 2017
2017
Topographic controls on vegetation patterns. Bonetti, S., and Porporato, A. (2017): SIAM Conference on Applications of Dynamical Systems, Snowbird, UT, 21-25 May 2017
2017
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
2017
Old-field succession: Land-use legacies and below-ground respiration. Brecheisen, Zachary, Daniel Richter, Will Cook, Paul Heine (2017): Ecological Society of America Annual Meeting, Portland, OR, 6-11 August 2017
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
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
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
2017
Fundamentals of Soil Ecology, 3rd Edition. Coleman, D.C., M.A. Callaham, Jr., and D.A. Crossley, Jr. (2017): Academic Press, London, 369 pp.
2017
Update on tree age distribution at the Calhoun CZO. Cook, C.W. (2017): Calhoun CZO 2017 Summer Science Meeting, Union, SC, 17-18 May 2017
2017
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
2017
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
2017
Increasing atmospheric humidity and CO2 concentration alleviate forest mortality risk. Liu, Yanlan, Anthony J. Parolari, Mukesh Kumar, Cheng-Wei Huang, Gabriel G. Katul, and Amilcare Porporato (2017): PNAS 114 (37): 9918-9923
2017
Increasing atmospheric humidity and CO2 concentrations alleviate forest mortality risk. Liu, Yanlan, Anthony Parolari, Mukesh Kumar, Cheng-Wei Huang, Gabriel Katul, Amilcare Porporato (2017): Calhoun CZO 2017 Summer Science Meeting, Union, SC, 17-18 May 2017
2017
Detection of early warning signals of forest mortality in California. Liu, Yanlan, Mukesh Kumar, Gabriel George Katul, Amilcare M Porporato (2017): American Geophysical Union 2017 Fall Meeting, New Orleans, Louisiana, 11-15 December 2017
2017
Patterns in soil electrical resistivity across land uses in the Calhoun Critical Zone Observatory landscape. Markewitz, Daniel, Lori Sutter, Daniel deB. Richter (2017): American Geophysical Union 2017 Fall Meeting, New Orleans, Louisiana, 11-15 December 2017
2017
Earthcasting controls of vegetation on solute fluxes and soil development in the critical zone. Sullivan, P.L., Goddéris, Y., Li, L., Billings, S., Macpherson, G.L., Shi, Y., Schott, J., Brantley, S.L. (2017): Critical Zone Science: Current Advances and Future Opportunities, Arlington, VA, 4-6 June, 2017 Cross-CZO
2016
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
2016
Crop water use and runoff in agricultural watersheds under hydro-climatic variability. Bartlett, M.S., and A. Porporato (2016): Invited talk at North Carolina State University, Raleigh, NC July 14, 2016
2016
Aging exo-enzymes can create temporally shifting, temperature-dependent resource landscapes for microbes. Billings, S., K. Min, F. Ballantyne IV, Y. Chen, M. Sellers (2016): Biogeochemistry 131:163-172
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
2016
Tree age distribution at the Calhoun CZO. Cook, C.W. (2016): Calhoun CZO 2016 Summer Science Meeting, Clinton, SC
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
2016
On the coupled effect of topography, vegetation cover, and soil properties on the partition of water and energy fluxes of seasonally water-stressed ecosystems. Gutierrez-Jurado, H. A.; Guan, H.; Wang, J.; Wang, H.; Simmons, C. T.; Bras, R. L. (2016): American Geophysical Union 2016 Fall Meeting, San Francisco, CA
2016
Temperature-mediated changes in microbial carbon use efficiency and 13C discrimination. Lehmeier, C.A., F. Ballantyne IV, K. Min, and S.A. Billings (2016): Biogeosciences 13: 3319-3329
2016
Increasing atmospheric humidity and CO2 concentration alleviate forest hydraulic failure risk. Liu, Y.; Parolari, A.; Kumar, M.; Porporato, A. M.; Katul, G. G. (2016): American Geophysical Union 2016 Fall Meeting, San Francisco, CA
2016
Biomass-C specific temperature responses of microbial C transformations reveal consistency regardless of microbial community structure across diverse timescales of inquiry. Min, K., K.M. Buckeridge, S.E. Ziegler, K.A. Edwards, S. Bagchi, S.A. Billings (2016): American Geophysical Union 2016 Fall Meeting, San Francisco, CA
2016
Carbon availability modifies temperature responses of heterotrophic microbial respiration, carbon uptake affinity, and stable carbon isotope discrimination. Min, Kyungjin, Christoph A. Lehmeier, Ford Ballantyne IV, and Sharon A. Billings (2016): Frontiers in Microbiology 7, Article 2083
2016
Bistable plant-soil dynamics and biogenic controls on the soil production function. Pelak, N.F., A.J. Parolari, and A. Porporato (2016): Earth Surface Processes and Landforms 41(8): 1011-1017
2015
Small-scale experiments in diverse ecosystem highlight intricate linkages between microbial behavior and ecosystem-scale processes. Billings, S., Wood, T., Buckeridge, K., Min, K., Lehmeier, C., Flournoy, R., Huang, Z., Ziegler, S., Richter, D., Pett-Ridge, J., Brodie, E., Bouskill, N. (2015): Ecological Society of America Annual Meeting, Baltimore, MD
2015
Investigating microbial transformations of soil organic matter: synthesizing knowledge from disparate fields to guide new experimentation. Billings, S.A., Tiemann, L.K., Ballantyne, F., Lehmeier C.A., Min, K. (2015): Soil 1: 313-330
2015
What about earthworms? Human influence on earthworm communities at the Calhoun Experimental Forest. Callaham, M. (2015): Calhoun CZO 2015 Summer Science Meeting
2015
Trees of the Enoree District. Cook, C. W. (2015): Calhoun CZO 2015 Summer Science Meeting
2015
Comparison of piedmont and mountain fire regimes during forest transition periods. Coughlan, M., and Nelson, D. (2015): Calhoun CZO 2015 Summer Science Meeting
2015
Transitioning from livelihood fire to fire suppression in the US Southeast: Causes and consequences of fire regime transition in two forested landscapes. Coughlan, M., D.R. Nelson, T. Gragson (2015): Fire Ecology and Management Congress, San Antonio, TX
2015
A Comparison of Aboveground Biomass in Post Agricultural Forests and Reference Hardwood Forests of the Piedmont Using High Resolution LiDAR Data. Harrington, M. (2015): Master's Project presentation, Nicholas School of the Environment, Duke University, 3 Dec. 2015
2015
Native Plants and Fertilization Help to Improve Sites and Stabilize Gullies on the Sumter National Forest. Law, D. L., and Hansen, W. F. (2015): Calhoun CZO 2015 Summer Science Meeting
2015
Is δ13C of respired CO2 dependent on growth rate? Exploring carbon isotope discrimination in soil microbes. Lehmeier, C. A., Min, K. J., Billings, S. A. (2015): Calhoun CZO 2015 Summer Science Meeting
2015
How deep and persistent are the influences of aboveground disturbance on soil microbial activities at the Calhoun CZO?. Min, K. J., Lehmeier, C. A., Billings, S. A. (2015): Calhoun CZO 2015 Summer Science Meeting
2014
Ecosystem and geoscientists to hybridize their sciences. Richter, D., Billings, S. (2014): American Geophysical Union annual meeting, San Francisco, California, December, 2014
2013
Accumulation and decay of woody detritus in a humid subtropical secondary pine forest. Mobley, Megan L., Daniel deB. Richter, and Paul R. Heine (2013): Canadian Journal of Forest Research 43: 109–118
2011
An Ecosystem Approach to Dead Plant Carbon over 50 years of Old-Field Forest Development. Mobley, Megan Leigh (2011): PhD Dissertation, Duke University, Durham, North Carolina
2006
Changes in stable isotope signatures of soil nitrogen and carbon during 40 years of forest development. Billings, S. A. and Richter, D. D. (2006): Oecologia 148 (2): 325-333
2006
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
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.
27 Apr 2017 - The Forest History Society announces that Zachary Brecheisen is the 2017-18 recipient of the F. K. Weyerhaeuser Fellowship! The fellowship consists...
08 Feb 2017 - The Winter 2017 issue of UGA Graduate features an in-depth article about cross-CZO grad student Diego Barcellos
21 Nov 2016 - Four soil pits were installed in new Research Area 8 at the Calhoun CZO on 21-22 November 2016 for easy access for soil sampling down to 2 meters.
17 Oct 2016 - Eight soil pits were installed at the Calhoun CZO on 17-18 October 2016 for easy access for soil sampling down to 2 meters. Photo: Will Cook.
15 Nov 2015 - PhD Student, Department of Ecology and Evolutionary Biology, University of Kansas
15 Nov 2015 - Associate Professor, Environmental Science, Roanoke College
16 Jul 2015 - A session entitled 'Ecology in the Critical Zone" will take place at the Ecological Society of America (ESA) 2015 Meeting held from August...
23 Jul 2014 - 1) A new history of Calhoun book chapter is being published this summer. Written by Dan Richter and co-authored by 19 scientists and land...
Giesen and Richter at University of South Carolina Environmental History Forum
University of South Carolina.