Dr. Cassandra Zalman

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Recent Creative, Scholarly Work and Publications

Microbial organic matter reduction regulates methane and carbon dioxide production across an ombrotrophic-minerotrophic peatland gradient. 2023. Soil Biology and Biochemistry. 182, 109045.

M.F. Pulido-Chavez, W.J. Randolph, C. Zalman, L. Larios, P.M. Homyak, S.I. Glassman. 2022. Rapid bacterial and fungal successional dynamics in first year after Chaparral wildfire. Microbial Ecology.

C. Zalman, +E. Hanna, +J. Rush, +K. Boise, L. Larios. 2022. Vegetation type and fire severity mediate short-term post fire soil microbial responses. Plant and Soil. 1-16.

R. Wilson, M. Tfaily, M. Kolton, E. Johnston, C. Petro, C.A. Zalman, P.J. Hanson, H.M. Heyman, J.E. Kyle, D.W. Holt, E.K. Eder, S.O. Purvine, R.K. Kolka, S.S Sebestyen, N.A. Griffiths, C.W. Schadt, J.K. Keller, S.D. Bridgham, J.P. Chanton. J.E. Kolka. 2021. Soil metabolome response to whole ecosystem warming at the Spruce and Peatland Responses Under Changing Environments experiment. PNAS.

+J. Rush, C.A. Zalman, G. Woerndle, +E. Hanna, S.D. Bridgham, J.K. Keller. 2021. Warming promotes the use of organic matter as an electron acceptor in a peatland. Geoderma, 401, 115303.

A.M. Hopple, R.M. Wilson, M. Kolton, C.A. Zalman, J.P. Chanton, J. Kostka, P.J. Hanson, J.K. Keller, S.D. Bridgham. 2020. Massive peatland carbon banks vulnerable to rising temperatures Nature Communications, 11(1): 1-7.

E. Hanna, J.K. Keller, D. Chang, W.J. de Bruyn, C.A. Zalman. The potential importance of methylated substrates in methane production within three northern Minnesota peatlands. Soil Biology and Biochemistry, in press.

A.M. Hopple, L. Pfeifer-Meister, C.A. Zalman, J.K. Keller, M. M. Tfaily, R.M. Wilson, J.P. Chanton, S.D. Bridgham. 2019. Does dissolved organic matter or solid phase peat fuel anaerobic respiration in peatlands? Geoderma, 349: 79-87.

C.A. Zalman, N. Meade, J. Chanton, J.E. Kostka, S.D. Bridgham, J.K. Keller. 2018. Methylotrophic methanogenesis in Sphagnum-dominated peatland soils. Soil Biology and Biochemistry, 118:156-160.

C.A. Zalman, J.K Keller, M. Tfaily, L. Pfeifer-Meister, R. Wilson, M. Kolton, X. Lin, J. Chanton, J.E. Kostka, A. Gill, A. Finzi, A.M. Hopple, B.J.M Bohannan, S.D. Bridgham. 2018. Small Differences in Ombrotrophy Controls Reasonal-Scale Variation in Methane Cycling among Sphagnum moss-dominated peatlands. Biogeochemistry, 139(2):155-177.

R.M. Wilson, S. Bridgham, L. Pfeifer-Meister, P. Crill, C. Medvedeff Zalman, J. Keller, W. Cooper J. Chanton, P. Hanson, L Meredith, S. Saleska, M. Tfaily, J. Kostka, V. Rich, M. Hines. 2017. Hydrogenation of Organic Matter as a Terminal Electron Sink Sustains High CO2:CH4 Production Ratios During Anaerobic Decomposition Organic Geochemistry (in press).

Keller, J.K. and C.A. Medvedeff. April 2016. Chapter 6. Soil organic matter. In Wetland Soils: Genesis, Hydrology, Landscapes and Classification. 2nd Edition. Vepraskas, M.J., C.B. Craft and J.L. Richardson (eds). CRC Press.

K.N. Gabriel, C.A. Medvedeff, J.K. Keller. (in press). Microbial Organic Matter Reduction in Peatland Soils: the Importance of Water-table Level. (BIOS)

R.M. Wilson, A.M. Hopple, M.M. Tfaily, S.D. Sebestyen, C.W. Schadt, L. Pfeifer-Meister, C. Medvedeff, K.J. McFarlane, J.E. Kostka, M. Kolton, R. Kolka, L.A. Kluber, J.K. Keller, T.P. Guilderson, N.A. Griffiths, J.P. Chanton, S.D. Bridgham, P.J. Hanson. 2016. Stability of peat carbon to rising temperatures. Nature Communications, 7:13723.

C.A. Medvedeff, K.S. Inglett & P.W. Inglett. December 2015. Can Fire Residues (Ash and Char) Affect Anaerobic Microbial Respiration and Methanogenesis in Wetland Soils? Wetlands, DOI: 10.1007/s13157-015-0703-x

C.A. Medvedeff, S.D. Bridgham, L. Pfeifer-Meister, J.K. Keller. 2015. Can Sphagnum Chemistry Explain Differences in Anaerobic Decomposition in Peatland Soils? Soil Biology and Biochemistry, DOI: 10.1016/j.soilbio.2015.03.016.

C.A. Medvedeff, K.S. Inglett, P.W. Inglett. 2015. Patterns and Controls of Anaerobic Soil Respiration and Methanogenesis Following Extreme Restoration of Calcareous Subtropical Wetlands. Geoderma, DOI: 10.1016/j.geoderma.2015.01.018.

C.A. Medvedeff, K.S. Inglett & P.W. Inglett. 2014. Evaluation of direct and indirect phosphorus limitation of methanogenic pathways in calcareous subtropical wetland soils. Soil Biology and Biochemistry, 69:343-348.

C.A. Medvedeff, K.S. Inglett, L.N. Kobziar & P.W. Inglett. 2013. Impacts of fire on microbial carbon cycling in subtropical wetland ecosystems. Fire Ecology, 9(1):21-37.

C.A. Medvedeff & A.E. Hershey. 2013. Importance of methane derived carbon as a basal resource for two benthic consumers in arctic lakes. Hydrobiologia, 700:221-230.