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Paul H. O’Neill
School of Public and Environmental Affairs

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  • Mallory Barnes

Mallory Barnes

Assistant Professor

Headshot
Email:
malbarn@iu.edu
Research areas:
Ecology and Conservation
Hydrology and Water Resources
Methods Econometrics and Data Management
Areas of Interest:
Environmental informatics
Remote sensing and spatial analysis
Ecohydrology
Ecosystem ecology
MSB II 304

Education

  • Ph.D., University of Arizona, 2018
  • M.S., University of Hawaii at Manoa, 2013
  • B.S. Zoology, University of Wisconsin-Madison, 2009

Biography

Print-quality photo

Curriculum Vitae

Dr. Mallory L. Barnes is an expert in quantitative analysis and integration of ecological data across spatial and temporal scales. She joined O’Neill as an assistant professor in 2019. She earned her Ph.D. in watershed management and ecohydrology from the University of Arizona. Barnes also holds a master’s degree from the University of Hawaii at Manoa in natural resources and environmental management. At the undergraduate level, she studied zoology at the University of Wisconsin-Madison.

Barnes’s research and teaching focuses on environmental informatics, remote sensing, ecohydrology, natural resource management, ecological analytics, and geographic information systems. Her specific research interests include scaling ecohydrological and biophysical processes from leaf to global scales and from daily to decadal timescales to improve predictions of vegetation response to future climate conditions. This work serves to improve our understanding and prediction of environmental changes in response to climate change, ranging from individual plants to entire ecosystems, with significant implications for agriculture, water resources, and biodiversity.

Barnes previously worked as a biological sciences technician with the U.S. Department of Agriculture’s Southwest Watershed Research Center.



Highlights

  • Billings Award, Ecological Society of America, 2018
  • William G. McGinnies Graduate Scholarship in Arid Land Studies, 2017

Selected Works

  • Barnes M.L., Suttles S., Carman‐Sweeney E., Houser M., Irvine R., Mooney S., Novick K.A., Pruitt A.N., Royer T.V., Seibert K.S., Tank J.L., Wang X., Yoder L., “Cover Crops as Nature-Based Climate Solutions in the Midwestern US: Potential Benefits, Knowledge Gaps, and Opportunities for Transdisciplinary Work”, Earth's Future, American Geophysical Union (AGU). https://doi.org/10.1029/2024ef005691 (2025)
  • Pervin R., Robeson S., Barnes M.L., Sitch S., Walker A., Poulter B., Maignan F., Sun Q., Colligan T., Zaehle S., Mahmud K., Anthoni P., Arneth A., Arora V., Bastrikov V., Bogucki L., Decharme B., Delire C., Falk S., Ito A., Kato E., Kennedy D., Knauer J., O’Sullivan M., Yuan W., MacBean N., “Importance of plant functional type, dynamic vegetation, and fire interactions for process-based modeling of gross carbon uptake across the drylands of western North America”, Preprint egusphere-2025-2841, Copernicus Publications. https://doi.org/10.5194/egusphere-2025-2841
  • Wang X., Barnes M.L., Yoder L., Williams C., Tank J., Royer T., Suttles S., Novick K.A., “The potential for albedo-induced climate mitigation using no-till management in midwestern U.S. croplands”, Communications Earth & Environment, Springer Nature. https://doi.org/10.1038/s43247-025-02549-x (2025)
  • Lamour J., Serbin S.P., Rogers A., Acebron K.T., Ainsworth E., Albert L.P., Alonzo M., Anderson J., Atkin O.K., Barbier N., Barnes M.L., Bernacchi C.J., Besson N., Burnett A.C., Caplan J.S., Chave J., Cheesman A.W., Clocher I., Coast O., Coste S., Croft H., Cui B., Dauvissat C., Davidson K.J., Doughty C., Ely K.S., Féret J-B., Filella I., Fortunel C., Fu P., Garcia M., Gimenez B.O., Guan K., Guo Z., Heckmann D., Heuret P., Isaac M., Kothari S., Kumagai E., Kyaw T.Y., Liu L., Liu S., Llusià J., Magney T., Maréchaux I., Martin A.R., Meacham-Hensold K., Montes C.M., Ogaya R., Ojo J., Oliveira R., Paquette A., Peñuelas J., Placido A.D., Posada J.M., Qian X., Renninger H.J., Rodriguez-Caton M., Rojas-González A., Schlüter U., Sellan G., Siegert C.M., Song G., Southwick C.D., Souza D.C., Stahl C., Su Y., Sujeeun L., Ting T-C., Vasquez V., Vijayakumar A., Vilas-Boas M., Wang D.R., Wang S., Wang H., Wang J., Wang X., Weber A.P.M., Wong C.Y.S., Wu J., Wu F., Wu S., Yan Z., Yang D., Zhao Y., “The Global Spectra-Trait Initiative: A database of paired leaf spectroscopy and functional traits associated with leaf photosynthetic capacity”, Copernicus Publications. https://doi.org/10.5194/essd-2025-213 (2025)
  • Runkle B.R.K., Barnes M., Dannenberg M., Gamon J.A., Magney T., Pierrat Z., Southwick C.D., Still C., Woodgate W., “Near-surface remote sensing applications for a robust, climate-smart measurement, monitoring, and information system (MMIS)”, Carbon Management, Taylor & Francis. https://doi.org/10.1080/17583004.2025.2465361 (2025)
  • Johnston M.R., Barnes M.L., Preisler Y., Smith W.K., Biederman J.A., Scott R.L., Williams A.P., Dannenberg M.P., “Effects of Hot Versus Dry Vapor Pressure Deficit on Ecosystem Carbon and Water Fluxes”, Journal of Geophysical Research Biogeosciences, American Geophysical Union (AGU). https://doi.org/10.1029/2024jg008146 (2025)
  • Pierrat Z.A., Magney T.S., Richardson W.P., Runkle B.R.K., Diehl J.L., Yang X., Woodgate W., Smith W.K., Johnston M.R., Ginting Y.R.S., Koren G., Albert L.P., Kibler C.L., Morgan B.E., Barnes M.L., Uscanga A., Devine C., Javadian M., Meza K., Julitta T., Tagliabue G., Dannenberg M.P., Antala M., Wong C.Y.S., Santos A.L.D., Hufkens K., Marrs J.K., Stovall A.E.L., Liu Y., Fisher J.B., Gamon J.A., Cawse‐Nicholson K., “Proximal remote sensing: an essential tool for bridging the gap between high-resolution ecosystem monitoring and global ecology”, New Phytologist, Wiley. https://doi.org/10.1111/nph.20405 (2025)
  • Kannenberg S.A., Babst F., Barnes M.L., Cabon A., Dannenberg M.P., Johnston M.R., Anderegg W.R.L., “Stand density and local climate drive allocation of GPP to aboveground woody biomass”, New Phytologist, Wiley. https://doi.org/10.1111/nph.20414 (2025)
  • Novick K.A., Barnes M.L., Gentine P., “Large and problematic gradients in temperature and VPD in field research settings”, Copernicus Publications. https://doi.org/10.5194/egusphere-egu24-10235 (2025)
  • Song Y., Barnes M.L., Browning D.M., Bybee-Finley K.A., Dahlin K.M., Munch S.B., Ponce-Campos G.E., Youngflesh C., Zuckerberg B., Zhu K., “Ecological synchrony in human-modified landscapes under a changing climate”, bioRxiv, Cold Spring Harbor Laboratory. https://doi.org/10.1101/2024.11.09.621137 (2024)
  • Field J.P., Law D.J., Myers O.B., Barnes M.L., Breshears D.D., Acuña K.M., Feng X., Fontaine J.B., Ruthrof K.X., Villegas J.C., “Soil amendment mitigates mortality from drought and heat waves in dryland tree juveniles”, Frontiers in Forests and Global Change, Frontiers. https://doi.org/10.3389/ffgc.2024.1215051 (2024)
  • Guo J.S., Barnes M.L., Smith W.K., Anderegg W.R.L., Kannenberg S.A., “Dynamic regulation of water potential in Juniperus osteosperma mediates ecosystem carbon fluxes”, New Phytologist, Wiley. https://doi.org/10.1111/nph.19805 (2024)
  • Barnes M.L., Zhang Q., Robeson S.M., Young L., Burakowski E.A., Oishi A.C., Stoy P.C., Katul G., Novick K.A., “A Century of Reforestation Reduced Anthropogenic Warming in the Eastern United States”, Earth's Future, American Geophysical Union (AGU). https://doi.org/10.1029/2023ef003663 (2024)
  • Kannenberg, S.A., Anderegg, W.R.L., Barnes, M.L., Dannenberg, M.P., Knapp, A.K., “Dominant role of soil moisture in mediating carbon and water fluxes in dryland ecosystems”, Nature Geoscience, Springer Nature. https://doi.org/10.1038/s41561-023-01351-8 (2024)
  • Beverly, D.P., Huenupi, E., Gandolfo, A., Lietzke, C.J., Ficklin, D.L., Barnes, M.L., Raff, J.D., Novick, K.A., Phillips, R.P., “The forest, the cicadas and the holey fluxes: Periodical cicada impacts on soil respiration depends on tree mycorrhizal type”, Ecology Letters, Wiley. https://doi.org/10.1111/ele.14349 (2024)
  • “Critical Zone Science in the Anthropocene: Opportunities for biogeographic and ecological theory and praxis to drive earth science integration,” (with J. Minor, J.K. Pearl, T.R. Colella, P.C. Murphy, S. Mann, G.A. Barro-Gafford), Progress in Physical Geography: Earth and Environment, July 2019
  • “Chlorophyll Fluorescence Better Captures Seasonal and Interannual Gross Primary Productivity Dynamics Across Dryland Ecosystems of Southwestern North America,” (with W. Smith, J. Biederman, F. Scott, D. Moore, M. He, J. Kimball, D. Yan, A. Hudson, N. MacBean, A. Fox, and M. Litvak) Geophysical Research Letters (2018)
  • “Beyond greenness: potential for detecting temporal changes in photosynthetic metabolism with hyperspectral reflectance data,” (with D. Breshears, D. Law, W. van Leeuwen, R. Monson, A. Fojtick, G. Barron-Gafford, and D. Moore) PLOS One (2018)
  • “Vegetation responds to sub-annual climate variability across semiarid biomes,” (with M. Moran, R. Scott, T. Kolb, G. Ponce-Campos, D. Moore, M. Ross, B. Mitra, and S. Dore) Ecosphere (2016)
  • “An Assessment of Seasonal and Diurnal Changes in Cloud Cover Over the Hawaiian Islands Using Terra and Aqua MODIS,” (with T. Miura and T. Giambelluca). Journal of Climate (2016).

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