James T. Morris

Contact

Address

Belle W. Baruch Institute for Marine and Coastal Sciences, University of South Carolina, Columbia, SC 29208

Telephone

803-960-9351

Email

jtmorris@baruch.sc.edu

Google Scholar

scholar.google.com/citations?user=QghVU2IAAAAJ

Education

1979

Ph.D., Forestry and Environmental Studies, Yale University

1975

M.S., Biology, Yale University

1973

B.A., Environmental Sciences, University of Virginia

2005

Project Management Certification, George Washington University School of Business

Employment History

2016-

Distinguished Research Professor, Belle W. Baruch Institute for Coastal and Marine Sciences, University of South Carolina

2006-2016

Director, Belle W. Baruch Institute of Coastal and Marine Sciences, and Chair Professor, Biological and Marine Sciences, University of South Carolina

2003-2005

Program Officer, Ecosystem Studies Program, Division of Environmental Biology, National Science Foundation

1992-2005

Professor of Biological and Marine Sciences, University of South Carolina

1989-1994

Faculty Appointee, U.S. Geological Survey, Water Resources Division

1990

Visiting Associate Professor, Botany Institute, Aarhus University, Denmark

1987-1992

Associate Professor, University of South Carolina

1981-1987

Assistant Professor of Biology & Marine Science, University of South Carolina

1979-1981

Postdoctoral Fellow, Ecosystems Center, Marine Biological Laboratory, Woods Hole, MA

1975-1976

Research Associate, Ecosystems Center, Marine Biological Laboratory, Woods Hole, MA

Honors

2013

Elected Fellow, Society of Wetland Scientists

2012

Society of Wetland Scientists Merit Award

2011

USC Educational Foundation Research Award

2009

Elected AAAS Fellow

2005-2016

Class of 1932 Distinguished Professor of Marine Studies

2001

Mortar Board Excellence in Teaching Award

Research & Professional Experience

Morris is an estuarine ecologist with expertise in systems ecology, biogeochemistry, and numerical modeling. He is a Fellow of the Society of Wetland Scientists and of the American Association for the Advancement of Science, and a current member of the Conservation International/UNESCO Blue Carbon Working Group. He directed USC's Baruch Institute for Marine & Coastal Sciences from 2006 to 2016, has a long history of NSF-funded research at North Inlet on the effects of sea-level change on coastal wetlands, is a collaborator on the Plum Island Ecosystems LTER project in Massachusetts, and is the developer of the Marsh Equilibrium Model (MEM).

Research Interests

Biogeochemistry and ecology of wetlands, systems ecology, biogeomorphology, plant physiological ecology, numerical modeling, theoretical ecology.

Patents

Methods of Marsh Restoration via Resuspension of Sediment, Patent No. 10,422,093.

Video & Web

• youtube.com/watch?v=V8848IhaDXE
• youtube.com/watch?v=8gMq-DSNhZU
• youtube.com/watch?v=JEmviKpENhE

Publications (155 · 1975-2026 · reverse chronological)

Peer-reviewed journal articles and book chapters, listed most recent first in Coastal & Estuarine Research Federation (CERF) reference style.

• Langley, J. A., Chapman, S. K., Wang, L., Maxwell, T. L., Rivera, P., Adame, M. F., et al. (2026). Blue nitrogen follows the fate of tidal wetlands. Earth's Future, 14, e2025EF006747. https://doi.org/10.1029/2025EF006747.
• Reidenbach, M.A., K.A. Rose, T.Tomiczek, J.T. Morris, C.M. Palinkas, L.W. Staver, W. Nardin, M.W. Gray, S.B. Lee, A.E. Sutton-Grier, and A.M. Hruska. 2025. Performance Evaluation of Natural and Nature-Based Features for Coastal Protection and Co-Benefits. Annu. Rev. Mar. Sci. 2026. 18:X-X.
• Morris, J. T., & Sundberg, K. (2025). The orchestration and harmonics of biogeochemical cycles in a southeastern USA saltmarsh. Journal of Geophysical Research: Biogeosciences, 130, e2025JG009005.
• Holmquist, J. R.,et al. 2024. The Coastal Carbon Library and Atlas: Open source soil data and tools supporting blue carbon research and policy. Global Change Biology, 30, e17098.
• Jezycki, K.E., E. Rodriguez, C.B. Craft, S.C. Neubauer, J.T. Morris, S. Goldsmith, P. Kremer, N. B. Weston. 2024. Metal accumulation in salt marsh soils along the East Coast of the United States. Science of the Total Environment. 922: https://doi.org/10.1016.
• Morris, J.T. and L.W. Staver 2024. Elevation Changes in Restored Marshes at Poplar Island, Chesapeake Bay, MD: II. Modeling the Importance of Marsh Development Time. Estuaries and Coasts, 47, 1799-1813 (2024). https://doi.org/10.1007/s12237-024-01342-x.
• Morris, J.T. and Sundberg, K. 2024. Responses of Coastal Wetlands to Rising Sea-Level Revisited: The Importance of Organic Production. Estuaries and Coasts, 10.1007/s12237-023-01313-8.
• Staver, L.W., Morris, J. T., Cornwell, J. C., Stevenson, J. C., Nardin, W., Hensel, P., Owens, M.S., Schwark, A. 2024. Elevation Changes in Restored Marshes at Poplar Island, Chesapeake Bay, MD: I. Trends and Drivers of Spatial Variability. Estuaries and Coasts. 10.1007/s12237-023-01319-2.
• Tong, C., J. Tan, M. Luo, J. Huang, S. Xiao, B. Liu, and J.T. Morris. 2024. Inundation counteracts the promoting effect of nitrogen enrichment on soil organic carbon mineralization in a tidal marsh. Fundamental Research. DOI: 10.1016/j.fmre.2024.01.013.
• Vahsen, M.L., K.E.O. Todd-Brown, J. Hicks, S.S. Pilyugin, J.T. Morris, and J.R. Holmquist. 2024. Cohort Marsh Equilibrium Model (CMEM): History, mathematics, and implementation. J.G.R. Biogeosciences 129: e2023JG007823.
• Wang, C.; Morris, J.T.; Smith, E.M. 2024. A Lidar Biomass Index of Tidal Marshes from Drone Lidar Point Cloud. Remote Sens. 16, 1823.
• Rolando, J.L., Kolton, M., Song, T., Liu, Y.Pinamang, P., Conrad, R. Morris, J. T., Konstantinidis, K. T., Kostka, J. E.2024, Sulfur oxidation and reduction are coupled to nitrogen fixation in the roots of the salt marsh foundation plant Spartina alterniflora. Nat Commun 15, 3607.
• Jafari, N.H., B. D. Harris, B.D., Alizad, K.A., Morris, J. and Cadigan, J.A. 2024. Interplay of Hydroperiod on Root Shear Strength for Coastal Wetland. Geophysical Research Letters 10.1029/2023GL106531.
• Vaughn, Lydia J. S.; Deverel, S. J.; Panlasigui, S.; Drexler, J. Z.; Olds, M.A.; Díaz, J.T.; Harris, Kendall F.; Morris, J.; Grenier, J. L.; Robinson, A.H.; Ball, D.A.2024. Managed wetlands for climate action: Potential greenhouse gas and subsidence mitigation in the Sacramento-San Joaquin Delta. San Francisco Estuary and Wetland Science.
• Morris, J.T., and G.J. Whiting. 2024. Components of the CO2 exchange in a southeastern USA salt marsh. Ocean-Land-Atmosphere Research Ocean-Land-Atmos. Res. 3:Article 0077.
• Day, J.W. Jr., E. Anthony, R. Costanza, D. Edmonds, J. Gunn, C. S. Hopkinson, M. E. Mann, J. T. Morris, M. J. Osland, T. Quirk, A. S. Rovai, J.R. Rybczyk, T. Spencer, J. Stephens, J. Syvitski, R.R. Twilley, J. M. Visser, J. R. White. 2024. Coastal wetlands in the Anthropocene. Ann. Rev. Environment and Resources 49:105-135.
• Mack, S. K., R. R. Lane, J. Deng, J. T. Morris, J. J. Bauer. 2023. Wetland carbon models: Applications for wetland carbon commercialization. Ecological Modelling 476. doi.org/10.1016/j.ecolmodel.2022.110228.
• Morris, J. T., Langley, J. A., Vervaeke, W. C., Dix, N., Feller, I. C., Marcum, P., & Chapman, S. K. 2023. Mangrove trees outperform saltmarsh grasses in building elevation but collapse rapidly under high rates of sea-level rise. Earth's Future, 11, e2022EF003202. https://doi.org/10.1029/2022EF003202.
• Rolando, J. L., Hodges, M., Garcia, K. D., Krueger, G., Williams, N., Carr Jr., J., Robinson, J., George, A., Morris, J., Kostka, J. E. 2023. Restoration and resilience to sea level rise of a salt marsh affected by dieback events. Ecosphere 14: e4467.
• Weston, N. B., Rodriguez, E., Donnelly, B., Solohin, E., Jezycki, K., Demberger, S., et al. 2023. Recent acceleration of wetland accretion and carbon accumulation along the U.S. East Coast. Earth's Future, 11, e2022EF003037. https://doi.org/10.1029/2022EF003037.
• Alizad, K., James T. Morris, Matthew V. Bilskie, Davina L. Passeri, and Scott C. Hagen. 2022. Integrated modeling of dynamic marsh feedbacks and evolution under sea-level rise in a mesotidal estuary (Plum Island, MA, USA). Water Resources Research. 58, e2022WR032225.
• Chen, G., R. Jin, Z. Ye, Q. Li, J. Gu, M. Luo, Y. Luo, G. Christakos, J. Morris, Junyu He, Dan Li, Hengwei Wang, Li Song, Qiuxuan Wang, and J. Wu. 2022. Spatiotemporal Mapping of Salt Marshes in the Intertidal Zone of China during 1985-2019. Journal of Remote Sensing:.
• Moritsch, M.M., Byrd, K.B., Davis, M., Good, A., Drexler, J.Z., Morris, J.T., Woo, I., Windham‑Myers, L., Grossman, E., Nakai, G., Poppe, K.L., Rybczyk, J.M. 2022. Can Coastal Habitats Rise to the Challenge? Resilience of Estuarine Habitats, Carbon Accumulation, and Economic Value to Sea-Level Rise in a Puget Sound Estuary. Estuaries and Coasts.
• Morris James T., Drexler Judith Z., Vaughn Lydia J. S., Robinson April H. 2022. An assessment of future tidal marsh resilience in the San Francisco Estuary through modeling and quantifiable metrics of sustainability. Frontiers in Environmental Science 10.
• Reed, Daniel C., Schmitt, Russell J., Burd, Adrian B., Burkepile, Deron E., Kominoski, John S., McGlathery, Karen J., Miller, Robert J., Morris, James T., Zinnert, Julie C. 2022. Responses of coastal ecosystems to climate change: Insights from Long-Term Ecological Research. BioScience 72: 871-888.
• Rovai, A. S., Twilley, R.R, Christensen, A.,McCall, A.,Jensen, D. J.Snedden, G.A.Morris, J.T., Cavell, J.A. 2022. Biomass allocation of tidal freshwater marsh species in response to natural and manipulated hydroperiod in coastal deltaic floodplains. Estuarine, Coastal and Shelf Science 268:.
• Bogdan, P., Caetano-Anollés, G., Jolles, A., Kim, H., Morris, J., Murphy, C., Royer, C., Snell, E.H., Steinbrenner, A., Strausfeld, N. 2021 Biological networks across scales: The theoretical and empirical foundations for modeling, analysis and control of time-varying complex networks that connect structure and function across levels of biological organization. Integrative and Comparative Biology,.
• Chapman, S.L., Ilka C. Feller; G. Canas; M. A. Hayes; N. Dix; M. Hester; J. Morris; J. A. Langley.2021. Mangrove growth response to experimental warming is greatest near the range limit in northeast Florida. Ecology 102: https://doi.org/10.1002/ecy.3320.
• Morgan, G.R., C. Wang, and J.T. Morris. 2021. RGB Indices and Canopy Height Modelling for Mapping Tidal Marsh Biomass from a Small Unmanned Aerial System. Remote Sensing 13: 3406.
• Morris, J.T., Cahoon, D.R. Callaway, J.C., Craft, C. Neubauer, S.C., and Weston, N.B. 2021. Marsh Equilibrium Theory: Implications for Responses to Rising Sea Level. In: FitzGerald, D. and Hughes, Z. (eds). Salt Marshes: Function, Dynamics, and Stresses. Academic Press. ISBN: 9781107186286.
• Runion, K.S., B. M. Boyd, C. D. Piercy and J. T. Morris. 2021 Beneficial use decision support for wetlands: Case study for Mobile Bay, Alabama. J. Waterway, Port, Coastal, and Ocean Engineering 147:05021010.
• Torbjörn E. Törnqvist, T.E., D.R. Cahoon, J.T. Morris, J.W. Day. 2021. Wetland resilience, accelerated sea-level rise, and the importance of timescale. AGU Advances. https://doi.org/10.1029/2020AV000334.
• Cahoon, D.R., McKee, K.L. & Morris, J.T. 2020. How plants influence resilience of salt marsh and mangrove wetlands to sea-level rise. Estuaries and Coasts. https://doi.org/10.1007/s12237-020-00834-w.
• Li, H., C.Wang. J.T. Ellis, Y.Cui, G. Miller, and J.T. Morris. 2020. Identifying marsh dieback events from Landsat image series (1998-2018) with an Autoencoder in the NIWB estuary, South Carolina. International Journal of Digital Earth. DOI: 10.1080/17538947.2020.1729263.
• Morris JT, Renken K.A. 2020. Past, present, and future nuisance flooding on the Charleston peninsula. PLoS ONE 15(9): e0238770.
• Morris, J.T., Lynch, J., Renken, K.A. et al. 2020.Tidal and Hurricane Impacts on Saltmarshes in the Northeastern Coastal and Barrier Network: Theory and Empirical Results. Estuaries and Coasts. https://doi.org/10.1007/s12237-020-00790-5.
• Bortolus, A. et al. 2019. Supporting Spartina: Interdisciplinary perspective shows Spartina as a distinct solid genus. Ecology 100: e02863.
• Miller, G.J., J.T. Morris, and C. Wang. 2019. Estimating aboveground biomass and its spatial distribution in coastal wetlands utilizing Planet multispectral imagery. Remote Sensing 11.
• Zhu, X. Lingxuan Meng, L., Yihui Zhang, Y., Qihao Weng, Q., and Morris, J. 2019. Tidal and meteorological influences on the growth of invasive Spartina alterniflora: Evidence from UAV. Remote Sensing 11, 1208; doi:10.3390/rs11101208.
• Thomas F., Morris J.T., Wigand C., Sievert S.M. 2019. Short-term effect of simulated saltmarsh restoration by sand-amendment on sediment bacterial communities. PLoSONE 14(4):e0215767.https://doi.org/10.1371/ journal.pone.0215767.
• Wiegman, ARH, Day, JW, Christopher F. D’Elia, CR, Rutherford, JS, Morris JT, Roy, ED, Lane, RR, Dismukes, DE, Snyder, BF. 2018. Modeling impacts of sea-level rise, oil price, and management strategy on the costs of sustaining Mississippi delta marshes with hydraulic dredging. Science of the Total Environment. doi.org/10.1016/j.scitotenv.2017.09.314.
• Holmquist, J., Windham-Myers, L., Bliss, N, Crooks, S., Morris, J. and others. 2018. Accuracy and Precision of Tidal Wetland Soil Carbon Mapping in the Conterminous United States. Sci Rep 8, 15219 (2018).
• Hopkinson, C. Morris, J. Fagherazzi, S., Wolheim, W. Raymond, P. 2018. Lateral marsh edge erosion as a source of sediments for vertical marsh accretion. Journal of Geophysical Research: Biogeosciences DOI: 10.1029/2017JG004358.
• Wright L.D., Wu W., Morris J. 2018. Coastal Erosion and Land Loss: Causes and Impacts. In: Wright L., Nichols C. (eds) Tomorrow's Coasts: Complex and Impermanent. Coastal Research Library, vol 27. Springer.
• Morris J. and J. Callaway. 2018. Chapter 6: Physical and biological regulation of carbon sequestration in salt marshes. pp. 67-79. In: A Blue Carbon Primer: The State of Coastal Wetland Carbon Science, Practice, and Policy. L Windham-Meyers, S Crooks and T Troxler (eds). CRC Press.
• Agrelius, T., Morris, J. Dudycha, J.L. 2018. Global DNA cytosine methylation variation in Spartina alterniflora at North Inlet, SC. PLoS ONE doi.org/10.1371/journal.pone.0203230.
• Alizad, K., Hagen, S.C., Medeiros, S.C., Bilskie, M.V., Morris, J.T., Balthis, L. Buckel, C.A. 2018. Dynamic responses and implications to coastal wetlands and the surrounding regions under sea level rise. PLoS ONE https://doi.org/10.1371/journal.pone.0205176.
• Tong, C., J.T. Morris, J, Huang,Hui Xu, S, Wan. 2018. Changes in pore‐water chemistry and methane emission following the invasion of Spartina alterniflora into an oliogohaline marsh. Limnol. Oceanogr. 63: 384-396. DOI: 10.1002/lno.10637.
• Davis, J., C. Currin, J.T. Morris. 2017. Impacts of fertilization and tidal inundation on elevation change in microtidal, low relief salt marshes. Estuaries and Coasts. 40:1677-1687.
• Lovelock, C.E., J.W. Fourqurean, J.T. Morris. 2017. Modeled CO2 emissions from coastal wetland transitions to other land uses: tidal marshes, mangrove forests and seagrass beds. Frontiers in Marine Science, doi: 10.3389/fmars.2017.00143.
• Rochlin, I. and J.T. Morris. 2017. Regulation of salt marsh mosquito populations by the 18.6-year lunar nodal cycle. Ecology 98:2059-2068.
• Miller, G.J., J.T. Morris and C. Wang. 2017. Mapping salt marsh dieback and condition in South Carolina’s North Inlet-Winyah Bay National Estuarine Research Reserve using remote sensing. AIMS Environmental Science. 45:677-689.
• Parkinson, R.W., Craft, C., DeLaune, R.D, Donoghue, J.F., Meeder, J.F., Morris, J. & Turner, R.E. 2017. Marsh vulnerability to sea-level rise. Nature Climate Change 7:756.
• Morris, J.T. 2016. Perspectives on a 30-Year Career of Salt Marsh Research. In: Willig,M.R. and Walker, L.R.(eds) Long-Term Environmental Research: Changing the Nature of Scientists. Oxford University Press.
• Agrelius, T., J.Morris and Dudycha, J. 2016. Global methylation of DNA among Spartina alterniflora clones differing in age at North Inlet, SC. In: 4th International Conference on Invasive Spartina, ICI-Spartina 2014. Pp. 53-57.
• Morris, J.T. 2016. Marsh equilibrium theory. In: 4th International Conference on Invasive Spartina, ICI-Spartina 2014. University of Rennes Press. Pp. 67-71. Université de Rennes, Rennes, France.
• Alizad, K., Hagen, S.C., Morris, J.T., Bacopoulos, P., Bilskie, M.V., Weishampel, J.F., and S.C. Medeiros. 2016. A coupled, two-dimensional hydrodynamic-marsh model with biological feedback. Ecol. Modeling. 327:29-43.
• Morris, J.T.,D.C. Barber, J.C. Callaway, R.Chambers, S.C. Hagen, C.S. Hopkinson, B.J. Johnson, P. Megonigal, S.C. Neubauer, T.Troxler, and C.Wigand. 2016. Contributions of organic and inorganic matter to sediment volume and accretion in tidal wetlands at steady state, Earth’s Future. 4, doi:10.1002/2015EF000334.
• Alizad, K., S.C. Hagen, J.T. Morris, S.C. Medeiros, M.V. Bilskie and J.F. Weishampel.2016. Coastal wetland response to sea level rise in a fluvial estuarine system. Earth’s Future. 4, doi: 10.1002/2016EF000385.
• Wigand C, K. Sundberg, A. Hanson, E. Davey, R. Johnson, E. Watson, and J. Morris. 2016. Varying inundation regimes differentially affect natural and sand-amended marsh sediments. PLoS ONE 11: e0164956. doi:10.1371/journal.pone.0164956.
• Byrd, K.B., L. Windham-Myers, T. Leeuw, B. Downing, J.T. Morris and M.C. Ferner. 2016. Forecasting tidal marsh elevation and habitat change through fusion of Earth observations and a process model. Ecosphere 7:1-27.
• Smith, M.D., La Pierre, K., Collins, S.L., Knapp, A.K., Gross, K.L., Barrett, J.E., Frey, S.D., Gough, L., Miller, R.J., Morris, J.T., Rustad. L.E., and Yarie, J. 2015. Global environmental change and the nature of aboveground net primary productivity responses: insights from long-term experiments. Oecologia 177:935-947.
• Wigand, C., Davey, E., Johnson, R., Sundberg, K., Morris, J., Kenny, P., Smith, E., Holt, M. 2015. Nutrient effects on belowground organic matter in a minerogenic salt marsh, North Inlet, SC. Estuaries and Coasts 10.1007/s12237-014-9937-8.
• Watson, E.B., Wigand, C.,Oczkowski, A.J., Sundberg, K., Vendettuoli, D., Jayaraman, S., Saliba, K., and Morris, J.T. 2015. Ulva additions alter soil biogeochemistry and negatively impact Spartina alterniflora growth. Marine Ecology Progress Series 532:59-72.
• Morris, J.T., Nyman, J.A. and Shaffer, G.P. 2014. The Influence of Nutrients on the Coastal Wetlands of the Mississippi Delta. pp 111- 123. In: Day, J.D. Kemp, G.P., Freeman, A.M. and Muth, D.P. (eds). Perspectives on the Restoration of the Mississippi Delta. Springer.
• Schile, L.M., Callaway, J.C., Morris, J.T., Stralberg, D., Parker, V.T. and Kelly, M. 2014. Modeling tidal wetland distribution with sea-level rise: Evaluating the role of vegetation, sediment, and upland habitat in marsh resiliency. PLoS ONE 9: e88760. doi:10.1371/journal.pone.0088760.
• Hagen, SC, JT Morris, P Bacopoulos, and JF. Weishampel. 2013. Sea-Level Rise Impact on a Salt Marsh System of the Lower St. Johns River. J Waterway, Port and Ocean Engineering. 139:118-125.
• Voss, C.M., R.R. Christian, J.T. Morris. 2013. Marsh macrophyte responses to inundation anticipate impacts of sea-level rise and indicate ongoing drowning of North Carolina marshes. Mar. Biol. 160:181-194.
• Fagherazzi S., FitzGerald D.M., Fulweiler R.W., Hughes Z., Wiberg P.L., McGlathery K.J., Morris J.T., Tolhurst T.J., Deegan L.A., and Johnson D.S. 2013. Ecogeomorphology of Salt Marshes. In: John F. Shroder (ed.) Treatise on Geomorphology, Volume 12, pp. 182-200. San Diego: Academic Press.
• Morris, J.T., Sundberg, K., and Hopkinson, C.S. 2013. Salt marsh primary production and its responses to relative sea level and nutrients in estuaries at Plum Island, Massachusetts, and North Inlet, South Carolina, USA. Oceanography 26:78-84.
• Morris, J.T., Shaffer, G.P. and Nyman, J.A. 2013. Brinson Review: Perspectives on the influence of nutrients on the sustainability of coastal wetlands. Wetlands 33:975-988.
• Wilson, A.M. and J.T. Morris. 2012. The influence of tidal forcing on groundwater flow and nutrient exchange in a salt marsh-dominated estuary. Biogeochemistry 108:27-38.
• Morris, J.T., Edwards, J., Crooks, S., Reyes, E. 2012. Assessment of Carbon Sequestration Potential in Coastal Wetlands. pp 517-531. In: Recarbonization of the Biosphere: Ecosystem and Global Carbon Cycle. R. Lal, K. Lorenz, R. Hüttl, B. U. Schneider, J. von Braun (eds). Springer.
• Hughes, A.L., A.M. Wilson and J.T. Morris. 2012. Hydrologic variability in a salt marsh: Assessing the links between drought and acute marsh dieback. Estuarine Coastal and Shelf Science. 111:95-106.
• Davey, E., C. Wigand, R. Johnson, K. Sundberg, J. Morris, and C.T. Roman. 2011. Use of computed tomography imaging for quantifying coarse roots, rhizomes, peat, and soil particle densities in marsh soils. Ecological Applications 21: 2156-2171.
• Kiehn, W.M. and J.T. Morris. 2010. Variability in Dimethylsulfoniopropionate (DMSP) in Spartina alterniflora and its effect on Littoraria irrorata. Marine Ecology Progress Series 406:47-55.
• Mudd, S.M., A. D’Alpaos, and J.T. Morris. 2010. How does vegetation affect sedimentation on tidal marshes? Investigating particle capture and hydrodynamic controls on biologically mediated sedimentation. Journal of Geophysical Research-Earth Surface, 115, F03029, doi:10.1029/2009JF001566.
• Fernandes P.R., S.T. Bishoff, J. Steinmetz, J.S. Castleberry, J.T. Morris. 2010. The distribution of ammonium and phosphate in the Pocotaligo Swamp, South Carolina: Evidence for net export and nitrogen limitation. North Carolina Academy of Science Journal 2:31-36.
• Kirwan, M.L., G.R. Guntenspergen, A. D’Alpaos, J.T. Morris, S.M. Mudd, S. Temmerman. 2010. Limits on the adaptability of coastal marshes to rising sea level. Geophysical Research Letters 37, L23401, doi:10.1029/2010GL045489.
• Kiehn, W.M. and J.T. Morris. 2009. Relationships between Spartina alterniflora and Littoraria irrorata in a South Carolina salt marsh. Wetlands 29:818-825.
• Kirwan, M.L., G.R. Guntenspergen, and J.T. Morris. 2009. Latitudinal trends in Spartina alterniflora productivity and the response of coastal marshes to global change. Global Change Biology 15:1982-1989.
• Bernot, M.J., R.J. Bernot and J.T. Morris. 2009. Nutrient cycling relative to δ15N and δ13C natural abundance in a coastal wetland with long-term nutrient additions. Aquatic Ecology. 43:803-813. DOI 10.1007/s10452-008-9221-8.
• Morris, J.T. Competition among marsh macrophytes by means of vertical geomorphological displacement. In press. In: Ayres, DR, DW Kerr, SD Ericson and PR Olofson, Eds. 200X. Proceedings of the Third International Conference on Invasive Spartina (San Francisco, CA), San Francisco Estuary Invasive Spartina Project of the State Coastal Conservancy (California), Cambridge Publications Limited, Cambridge, UK.
• Mudd, S.M., S. Howell, and J.T. Morris. 2009. Impact of the dynamic feedback between sedimentation, sea level rise, and biomass production on near surface marsh stratigraphy and carbon accumulation. Estuarine, Coastal and Shelf Science 82:377-389.
• Day, J.W., R.R. Christian, D. F. Boesch, A. Yáñez-Arancibia, J. Morris, R. R. Twilley, L. Naylor, L. Schaffner, and C. Stevenson. 2008. Consequences of climate change on the ecogeomorphology of coastal wetlands. Estuaries and Coasts 31:477-491.
• Morris, J.T. 2007. Ecological engineering in intertidal saltmarshes. Hydrobiologia 577:161-168.
• Morris, J.T. 2007. Estimating net primary production of salt-marsh macrophytes, pp. 106-119. In Fahey, T.J. and Knapp, A.K (eds). Principles and Standards for Measuring Primary Production. Oxford University Press.
• McKellar Jr., H.N., D. L. Tufford, M.C. Alford, P. Saroprayogi, B.J. Kelley, and J. T. Morris. 2007. Tidal nitrogen exchanges across a freshwater wetland succession gradient in the upper Cooper River, South Carolina. Estuaries and Coasts 20:989-1006.
• Morris, J.T. 2006. Competition among marsh macrophytes by means of geomorphological displacement in the intertidal zone. Estuarine and Coastal Shelf Science 69:395-402.
• Morris, J.T., R.R. Christian, and R.E. Ulanowicz. 2005. Analysis of size and complexity of randomly constructed food webs by information theoretic metrics. pp. 73-85, In: Aquatic Food Webs: an Ecosystem Approach; A. Belgrano, U. M. Scharler, J. Dunne and R. E. Ulanowicz (Eds), Oxford University Press.
• Huang, X. and J. T. Morris. 2005. Distribution of phosphatase activity in marsh sediments along an estuarine salinity gradient. Marine Ecology Progress Series 292: 75-83.
• Morris, J.T. 2005. Effects of changes in sea level and productivity on the stability of intertidal marshes. In: Lasserre P:, Viaroli P., Campostrini P. (eds) Lagoons and coastal wetlands in the global change context: Impacts and management issues Proceedings of the International Conference, Venice, 26-28 April 2004. ICAM Dossier N°3, UNESCO, pp. 121-127.
• Morris, J.T., D. Porter, M., Neet, P. A. Noble, L. Schmidt, L. A. Lapine, and J. Jensen. 2005. Integrating LIDAR elevation data, multispectral imagery and neural network modeling for marsh classification. Int. J. Remote Sensing 26:5221-5234.
• Piehler, M.F. B. Bendis, D.Millie, J.L. Pinckney Paerl, H.W., L.M. Valdes, P.H. Moisander, J. Dyble,, J.T. Morris. 2005. Using microalgal indicators to assess human and climate-induced ecological change in estuaries. In: Bortone (ed.), Estuarine Indicators, CRC Press, Boca Raton, FL, pp.145-174.
• Otte, M.L., G. Wilson, J.T. Morris and B.M. Moran. 2004. Dimethylsulphoniopropionate (DMSP) and related compounds in higher plants. J. Exp. Bot. 55:1919-1925.
• Buzzelli, C., O. Akman, T. Buck, E. Koepfler, J. Morris, and A. Lewitus. 2004. Relationships among water quality parameters from the North Inlet-Winyah Bay National Estuarine Research Reserve, South Carolina. Journal of Coastal Research 45:59-74.
• Mudd, S.M., S. Fagherazzi, J.T. Morris, and D.J. Furbish. 2004. Flow, sedimentation, and biomass production on a vegetated salt marsh in South Carolina: toward a predictive model of marsh morphologic and ecologic evolution, in The Ecogeomorphology of Tidal Marshes, edited by S. Fagherazzi, A. Marani, and L.K. Blum, pp. 165-187, American Geophysical Union, Washington, D.C.
• Torres, R., M. A. Goni, G. Voulgaris, C. R. Lovell, and J.T. Morris. 2004. Effects of low tide rainfall on intertidal material cycling. pp. 95-114, In: The Ecogeomorphology of Tidal Marshes: A Review. S. Fagherazzi, A. Marani, and L. Blum (eds), Coastal and Estuarine Studies Series. American Geophysical Union, Washington, D.C.
• Huang, X. and J. T. Morris. 2003. Trends in phosphatase activity along a successional gradient of tidal freshwater marshes on the Cooper River, South Carolina. Estuaries, 26:1281-1290.
• Sundareshwar, P.V., J.T. Morris, E.K. Koepfler, and B. Fornwalt. 2003. Phosphorus limitation of coastal ecosystem processes. Science 299:563-565.
• Noble, P.A., R.G. Tymowski, M. Fletcher, J.T. Morris and A. J. Lewitus. 2003. Contrasting patterns of phytoplankton community pigment composition in two salt marsh estuaries in Southeastern United States. Applied Environmental Microbiology 69:4129-4143.
• Morris, J.T., P.V. Sundareshwar, C.T. Nietch, B. Kjerfve, D.R. Cahoon. 2002. Responses of coastal wetlands to rising sea level. Ecology 83:2869-2877 (5th most cited paper in the wetland discipline).
• Jensen, J.R., G. Olsen, S. R. Schill, D. E. Porter, J. Morris. 2002. Remote sensing of biomass, leaf-area-index and chlorophyll a and b content in the ACE Basin and National Estuarine Research Reserve using sub-meter digital camera imagery. Geocarto International 17:1-10.
• Sundareshwar, P.V., J.T. Morris, P.J. Pellechia, H.J. Cohen, D.E. Porter and B.C. Jones. 2001. Occurrence and ecological implications of pyrophosphate in estuaries. Limnol. Oceanogr. 46:1570-1577.
• Morris, J.T. 2000. Effects of sea level anomalies on estuarine processes. Pp. 107-127. In: J. Hobbie (ed.), Estuarine Science: A Synthetic Approach to Research and Practice. Island Press. 539 pp.
• Geyer, W.R., J.T. Morris, D. Jay, F.G. Prahl. 2000. The coupling of physics, biogeochemistry, and ecology. Pp 117-206. In: J. Hobbie (ed.), Estuarine Science: A Synthetic Approach to Research. Island Press. 539 pp.
• Krest, J.M., W.S. Moore, L.R. Gardner, and J.T. Morris. 2000. Marsh nutrient export supplied by ground water discharge: Evidence from radium measurements. Global Biogeochemical Cycles 14:167-176.
• Mendelssohn, I.A. and J.T. Morris. 2000. Ecophysiological controls on the growth of Spartina alterniflora, pp. 59-80. In: Concepts and Controversies in Tidal Marsh Ecology. N.P. Weinstein and D.A. Kreeger (eds.). Kluwer Academic Publishers.
• Paludan, C. and J.T. Morris. 1999. Distribution and speciation of phosphorus along a salinity gradient in intertidal marsh sediments. Biogeochemistry 45: 197-221.
• Morris, J.T. and P.M. Bradley. 1999. Effects of nutrient loading on the preservation of organic carbon in wetland sediments. Limnology and Oceanography, 44:699-702.
• Vroblesky, D.A., C.T. Nietch, and J.T. Morris. 1999. Chlorinated ethene concentrations in tree trunks. Environmental Science &Technology 33:510-515.
• Sundareshwar, P.V. and J.T. Morris. 1999. Phosphorus sorption characteristics of intertidal marsh sediments along an estuarine salinity gradient. Limnology and Oceanography 44:1693-1701.
• Nietch, C.T., J.T. Morris and D.A. Vroblesky. 1999. Biophysical mechanisms of trichloroethene uptake and loss in baldcypress growing in shallow contaminated groundwater. Environmental Science & Technology 33:2899-2904.
• Morris, J.T. & A. Jensen. 1998. The carbon balance of grazed and nongrazed Spartina anglica saltmarshes at Skallingen, Denmark. J.Ecol.86: 229-242.
• Lewitus, A.J., E.T. Koepfler, and J.T. Morris. 1998. Seasonal variation in the regulation of phytoplankton by nitrogen and grazing in a salt-marsh estuary. Limnology and Oceanography 43:636-646.
• Morris, J.T., C. Haley, and R. Krest. 1996. Effects of sulfide concentrations on growth and dimethylsulphoniopropionate (DMSP) concentration in Spartina alterniflora, pp. 87-95 In Biological and Environmental Chemistry of DMSP and Related Sulfonium Compounds. R.Kiene, P.Visscher, M. Keller and G. Kirst (eds), Plenum, NY.
• Morris, J.T. 1995. The salt and water balance of intertidal sediments: results from North Inlet, South Carolina. Estuaries 18:556-567.
• Yoch, D.C., J.T. Morris and Y. Li. 1995. Stimulatory effect of low level hydrocarbon amendments on microbial N2 fixation, denitrification, and methanogenesis in salt marsh environments. pp. 255-274, In T. Patla (ed.), IGT 5th Annual International Symposium on Gas, Oil and Environmental Biotechnology, Sept. 21-23, 1993. Chicago IL. IGT, Chicago.
• Hwang, Y.H. and J.T. Morris. 1994. Whole plant gas exchange responses of Spartina alterniflora (Poaceae) to a range of constant and transient salinities. Amer. J. Bot. 81:659-665.
• Boesch, D.F., M.N. Josselyn, A. J. Mehta, J.T. Morris, W.K. Nuttle, C.A. Simenstad, and J.P. Swift. 1994. Scientific assessment of coastal wetland loss, restoration and management in Louisiana. J. Coastal Research Special Issue #20, 103 pp.
• Otte, M.L. and J.T. Morris. 1994. Dimethylsulphoniopropionate (DMSP) in Spartina alterniflora Loisel. Aquatic Botany 48:239-259.
• Brix, H., B. Lorenzen, J.T. Morris, H.-H. Schierup, and B.K. Sorrell. 1994. Effects of oxygen and nitrate on ammonium uptake kinetics and adenylate pools in Phalaris arundinacea L. and Glyceria maxima (Hartm.) Holmb. Proc. Royal Soc. Edinburgh 102B: 333-342.
• Morris, J.T. and B.C. Coull. 1992. Population dynamics, numerical production, and potential predation impact on a meiobenthic copepod. Can. J. Fish. Aquatic Sci. 49:609-616.
• Hwang, Y.H. and J.T. Morris. 1992. Fixation of inorganic carbon from different sources and its translocation in Spartina alterniflora Loisel. Aquatic Botany 43:137-147.
• Bradley, P.M. and J.T. Morris. 1992. Effect of salinity on the critical nitrogen concentration of Spartina alterniflora Loisel. Aquatic Botany 43:149-161.
• Bradley, P.M. and J.T. Morris. 1991. The influence of salinity on the kinetics of NH4+ uptake in Spartina alterniflora. Oecologia 85:375-380.
• Hwang, Y.H. and J.T. Morris. 1991. Evidence for hygrometric pressurization in the internal gas space of Spartina alterniflora. Plant Physiology 96:166-171.
• Morris, J.T. 1991. Effects of nitrogen loading on wetland ecosystems with particular reference to atmospheric deposition. Annual Review of Ecology and Systematics 22:257-279.
• Bowden, W.B., C.J. Vorosmarty, J.T. Morris, B.J. Peterson, J.E. Hobbie, P.A. Steudler, and B.A. Moore. 1991. Transport and processing of nitrogen in a tidal freshwater marsh. Water Resources Research 27:389-408.
• Bradley, P.M. and J.T. Morris. 1991. Relative importance of ion exclusion, secretion and accumulation in Spartina alterniflora Loisel. J. Exp. Bot. 42:1525-1532.
• Li, Y., J.T. Morris, and D.C. Yoch. 1990. Chronic low level hydrocarbon amendments stimulate plant and microbial activity in salt-marsh microcosms. J. Appl. Ecol. 27:159-171.
• Morris, J.T., B. Kjerfve, J.M. Dean. 1990. Dependence of estuarine productivity on anomalies in mean sea level. Limnol. Oceanogr. 35: 926-930.
• Bradley, P.M. and J.T. Morris. 1990. Influence of oxygen and sulfide concentration on nitrogen uptake kinetics in Spartina alterniflora. Ecology 71:282-287.
• McMahon, P.B., D.F. Williams, J.T. Morris. 1990. Production and carbon isotopic composition of bacterial CO2 in deep coastal plain sediments of South Carolina. Ground Water 28:693-702.
• Morris, J.T. and B. Haskin. 1990. A 5-yr record of aerial primary production and stand characteristics of Spartina alterniflora. Ecology 71:2209-2217.
• Bradley, P.M. and J.T. Morris. 1990. Physical characteristics of salt marsh sediments: ecological implications. Mar. Ecol. Prog. Ser. 61:245-252.
• Bradley, P.M., B. Kjerfve, and J.T. Morris. 1990. Rediversion salinity change in the Cooper River, South Carolina: ecological implications. Estuaries 13:373-379.
• Morris, J.T. 1989. Modelling light distribution within the canopy of the marsh grass Spartina alterniflora as a function of canopy biomass and solar angle. Agricultural and Forest Meteorology 46:349-361.
• Morris, J.T. 1988. Pathways and controls of the carbon cycle in salt marshes. In: D.D. Hook (ed.), The ecology and management of wetlands. pp. 497-510. Croom Helm, U.K.
• Chapelle, R.H., J.T. Morris, J.L. Zelibor, Jr., and P.B. McMahon. 1988. Bacterial metabolism and the 13C composition of ground water, Floridan aquifer system, South Carolina. Geology 16:117-121.
• Morris, J.T., G.J. Whiting, and F.H. Chapelle. 1988. Potential denitrification rates in deep sediments from the southeastern coastal plain. Env. Sci. Tech. 22:832-836.
• Ember, L.M., D.F. Williams, J.T. Morris. 1987. Processes that influence carbon isotope variations in salt marsh sediments. Mar. Ecol. Prog. Ser. 36:33-42.
• Morris, J.T. and W.B. Bowden. 1986. A mechanistic, numerical model of sedimentation, mineralization, and decomposition for marsh sediments. Soil. Sci. Soc. Amer. J. 50:96-105.
• Morris, J.T. and K. Lajtha. 1986. Decomposition and nutrient dynamics of litter from four species of fresh water emergent macrophytes. Hydrobiol. 131:215-223.
• Morris, J.T. and G.J. Whiting. 1986. Emission of gaseous CO2 from salt marsh sediments and its relation to other carbon losses. Estuaries 9:9-19.
• Whiting, G.J. and J.T. Morris. 1986. Nitrogen fixation (C2H2 reduction) in a salt marsh: its relationship to temperature and an evaluation of an in situ chamber technique. Soil Biol. Biochem. 18:515-521.
• Morris, J.T. and G.J. Whiting. 1985. Gas advection in sediments of a South Carolina salt marsh. Mar. Ecol. Prog. Ser. 27:187-194.
• Morris, J.T., R.A. Houghton, D.B. Botkin. 1984. Theoretical limits of belowground production by Spartina alterniflora. Ecological Modeling 26:155-175.
• Morris, J.T. 1984. Effects of oxygen and salinity on ammonium uptake by Spartina alterniflora and Spartina patens. J. Exp. Mar. Biol. Ecol. 78:87-98.
• Morris, J.T. and J. Dacey. 1984. Effects of O2 on ammonium uptake and root respiration by Spartina alterniflora. Amer. J. Bot. 71:979-985.
• Vorosmarty, C.J., B. Moore, W.B. Bowden, J. Hobbie, B.J. Peterson, J.T. Morris. 1983. The transport and processing of nitrogen in a tidal, freshwater marsh and river ecosystem: modeling the roles of water movement and biotic activity in determining water quality. pp. 689-698. In: Lauenroth, W.K., G.V. Skogerboe, and M. Flug (eds.) Analysis of Ecological Systems: State-of-the Art in Ecological Modelling. Elsevier.
• Morris, J.T. 1982. A model of growth responses of Spartina alterniflora to nitrogen limitation. Journal of Ecology 70:25-42.
• Morris, J.T. 1980. The nitrogen uptake kinetics of Spartina alterniflora in culture. Ecology 61:1114-1121.
• Singer, S.F. & J.T. Morris. 1977. The problem of population optima. In: Hall & Day (eds.), Ecosystem Modeling in Theory and Practice. pp. 607-620. Wiley.
• Zieman, J.C., G.M. Hornberger, T.C. Lederman, J. S. Fisher, J.T. Morris, H.G. Goodell, W.C. Keene, W.E. Odum. 1975. A simulation modeling approach to the study of development alternatives. In: (J. Clark, ed.) Rookery Bay Land Use Studies. Environmental Planning Strategies for the Development of a Mangrove Shoreline. Conservation Foundation.