Staff information
James Megonigal
Biological Sciences Division
Joint Appointment
Pacific Northwest National Laboratory
PO Box 999
MSIN:
Richland, WA 99352
PNNL Publications
2024
- Arias-Ortiz A., J. Wolfe, S.D. Bridgham, S. Knox, G. Mcnicol, B. Needelman, and J. Shahan, et al. 2024. "Methane Fluxes in Tidal Marshes of the Conterminous United States." Global Change Biology 30, no. 9:Art No. e17462. PNNL-SA-201253. doi:10.1111/gcb.17462
- Li B., Z. Li, J. Zheng, P. Jiang, J. Holmquist, P.J. Regier, and G.E. Hammond, et al. 2024. "Integrated Effects of Site Hydrology and Vegetation on Exchange Fluxes and Nutrient Cycling at a Coastal Terrestrial-Aquatic Interface." Water Resources Research 60, no. 6:Art. No. e2023WR035580. PNNL-SA-187583. doi:10.1029/2023WR035580
- Machado-Silva F., M. Weintraub, N.D. Ward, K. Doro, P.J. Regier, S. Ehosioke, and S. Pushpajom Thomas, et al. 2024. "Short-term groundwater level fluctuations drive subsurface redox variability." Environmental Science & Technology 58, no. 33:14687-14697. PNNL-SA-201342. doi:10.1021/acs.est.4c01115
- Morris K.A., M.A. Smith, V.L. Bailey, R. Bittencourt-Peixoto, D.J. Day, N.D. Hamovit, and A.M. Hopple, et al. 2024. "Methane flux from transplanted soil monoliths depends on moisture, but not origin." Soil Biology and Biochemistry 193. PNNL-SA-186715. doi:10.1016/j.soilbio.2023.109296
- Oikawa P., D. Sihi, I. Forbrich, E. Fluet-Chouinard, M. Najarro, O. Thomas, and J. Shahan, et al. 2024. "A New Coupled Biogeochemical Modeling Approach Provides Accurate Predictions of Methane and Carbon Dioxide Fluxes Across Diverse Tidal Wetlands." Journal of Geophysical Research: Biogeosciences 129, no. 10:art no. e2023JG007943. PNNL-SA-193293. doi:10.1029/2023JG007943
- Patel K.F., K.A. Rod, J. Zheng, P.J. Regier, F. Machado-Silva, B. Bond-Lamberty, and X. Chen, et al. 2024. "Time to anoxia: Observations and predictions of oxygen drawdown following coastal flood events." Geoderma 444. PNNL-SA-190684. doi:10.1016/j.geoderma.2024.116854
- Ward N.D., and J.P. Megonigal. 2024. "Researchers barking up (the right) tree find new mechanisms controlling methane transport by woody vegetation." New Phytologist 242, no. 1:5-7. PNNL-SA-193934. doi:10.1111/nph.19565
- Wilson S.J., B. Bond-Lamberty, G. Noyce, R. Bittencourt-Peixoto, and J.P. Megonigal. 2024. "fluxfinder: An R Package for Reproducible Calculation and Initial Processing of Greenhouse Gas Fluxes From Static Chamber Measurements." Journal of Geophysical Research: Biogeosciences 129, no. 11:Art. No. e2024JG008208. PNNL-SA-206434. doi:10.1029/2024jg008208
2023
- Adebayo M.B., S. Ehosioke, E.D. Emmanuel, A.M. Hopple, P.J. Regier, J.P. Megonigal, and N.D. Ward, et al. 2023. "Time-lapse electrical resistivity and induced polarization monitoring of a simulated ecosystem-scale coastal flooding experiment." In Third International Meeting for Applied Geoscience and Energy (IMAGE 2023), August 28-September 1, 2023, Houston, TX. SEG Technical Program Expanded Abstracts,, Volume 2023-August, 1169 - 1173. Houston, Texas:Society of Exploration Geophysicists. PNNL-SA-188226. doi:10.1190/image2023-3906870.1
- Adebayo M.B., V.L. Bailey, X. Chen, A.M. Hopple, P. Jiang, B. Li, and Z. Li, et al. 2023. "A hydrogeophysical framework to assess infiltration during a simulated ecosystem-scale flooding experiment." Journal of Hydrology 626, no. Part A:Art. No. 130243. PNNL-SA-185996. doi:10.1016/j.jhydrol.2023.130243
- Bond-Lamberty B., L.M. Haddock, S.C. Pennington, U.U. Sezen, J. Shue, and J.P. Megonigal. 2023. "Salinity exposure affects lower-canopy specific leaf area of upland trees in a coastal deciduous forest." Forest Ecology and Management 548. PNNL-SA-185828. doi:10.1016/j.foreco.2023.121404
- Ding J., N.G. McDowell, Y. Fang, N.D. Ward, M. Kirwan, P.J. Regier, and J.P. Megonigal, et al. 2023. "Modeling the mechanisms of conifer mortality under seawater exposure." New Phytologist 239, no. 5:1679-1691. PNNL-SA-186478. doi:10.1111/nph.19076
- Hopple A.M., K. Doro, V.L. Bailey, B. Bond-Lamberty, N.G. McDowell, K.A. Morris, and A.N. Myers-Pigg, et al. 2023. "Attaining freshwater and estuarine-water soil saturation in an ecosystem-scale coastal flooding experiment." Environmental Monitoring and Assessment 195, no. 3:Art. No. 425. PNNL-SA-173432. doi:10.1007/s10661-022-10807-0
- Hopple A.M., S.C. Pennington, J.P. Megonigal, V.L. Bailey, and B. Bond-Lamberty. 2023. "Root and microbial soil CO2 and CH4 fluxes respond differently to seasonal and episodic environmental changes in a temperate forest." Journal of Geophysical Research: Biogeosciences 128, no. 8:e2022JG007233. PNNL-SA-178412. doi:10.1029/2022JG007233
2022
- Hopple A.M., S.C. Pennington, J.P. Megonigal, V.L. Bailey, and B. Bond-Lamberty. 2022. "Disturbance legacies regulate coastal forest soil stability to changing salinity and inundation: a soil transplant experiment." Soil Biology and Biochemistry 169. PNNL-SA-173846. doi:10.1016/j.soilbio.2022.108675
- McDowell N.G., M. Ball, B. Bond-Lamberty, M. Kirwan, K.W. Krauss, J.P. Megonigal, and M. Mencuccini, et al. 2022. "Processes and mechanisms of coastal woody-plant mortality." Global Change Biology 28, no. 20:5881-5900. PNNL-SA-174071. doi:10.1111/gcb.16297
2021
- Norwood M.J., N.D. Ward, N.G. McDowell, A.N. Myers-Pigg, B. Bond-Lamberty, J.L. Indivero, and S.C. Pennington, et al. 2021. "Coastal forest seawater exposure increases stem methane concentration." Journal of Geophysical Research: Biogeosciences 126, no. 2:e2020JG005915. PNNL-SA-151190. doi:10.1029/2020JG005915
2020
- Pennington S.C., N.G. McDowell, J.P. Megonigal, J.C. Stegen, and B. Bond-Lamberty. 2020. "Localized basal area affects soil respiration temperature sensitivity in a coastal deciduous forest." Biogeosciences 17, no. 3:771-780. PNNL-SA-143158. doi:10.5194/bg-17-771-2020
- Ward N.D., J.P. Megonigal, B. Bond-Lamberty, V.L. Bailey, D. Butman, E. Canuel, and H.L. Diefenderfer, et al. 2020. "Representing the Function and Sensitivity of Coastal Interfaces in Earth System Models." Nature Communications 11. PNNL-SA-147328. doi:10.1038/s41467-020-16236-2