Buchanan, P. J., Sun, X., Weissman, J. L. & Zakem, E. Oxygen intrusions sustain aerobic nitrite oxidation in anoxic marine zones. bioRxiv (2023) doi:10.1101/2023.02.22.529547
Proctor, C., Coupel, P., Casciotti, K., Tremblay, J.E., Zakem, E., Arrigo, K.R. and Mills, M.M. Light, ammonium, pH, and phytoplankton competition as environmental factors controlling nitrification. Limnology and Oceanography, 68: 1490-1503 (2023) doi:10.1002/lno.12359
Liu, L., Chen, M., Wan, X.S., Du, C., Liu, Z., Hu, Z., Jiang, Z.P., Zhou, K., Lin, H., Shen, H., Zhao, D., … Zakem, E. J., … and Zhang, Y. Reduced nitrite accumulation at the primary nitrite maximum in the cyclonic eddies in the western North Pacific subtropical gyre. Science Advances, 9, eade2078 (2023) doi:10.1126/sciadv.ade2078
Zakem, E. J., B. Bayer, W. Qin, A. E. Santoro, Y. Zhang, and N. M. Levine. Controls on the relative abundances and rates of nitrifying microorganisms in the ocean. Biogeosciences 19: 5401-5418 (2022) doi:10.5194/bg-19-5401-2022
Nguyen, T. H., E. J. Zakem, A. Ebrahimi, J. Schwartzman, T. Caglar, K. Amarnath, U. Alcolombri, F. J. Peaudecerf, T. Hwa, R. Stocker, O. X. Cordero, and N. M. Levine. Microbes contribute to setting the ocean carbon flux by altering the fate of sinking particulates. Nature Communications 13: 1657 (2022) doi:10.1038/s41467-022-29297-2
Follet, C. L., S. Dutkiewicz, F. Ribalet, E. J. Zakem, D. Caron, E. V. Armbrust, and M. J. Follows. Trophic interactions with heterotrophic bacteria limit the range of Prochlorococcus. Proc. Natl. Acad. Sci. 119: e2110993118 (2022) doi:10.1073/pnas.2110993118
Zakem, E. J., B. B. Cael, and N. M. Levine. A unified theory for organic matter accumulation. PNAS 118 (6): e2016896118 (2021) doi:10.1073/pnas.2016896118 Commentary: Repeta, D. J. Unifying chemical and biological perspectives of carbon accumulation in the environment. PNAS 118 (11): e2100935118 (2021) doi:10.1073/pnas.2100935118
Zakem, E. J., J. Lauderdale, R. Schlitzer, and M. J. Follows. A flux-based threshold for anaerobic activity in the ocean. Geophysical Research Letters (2021) doi:10.1029/2020GL090423
Zakem, E. J., M. F. Polz, and M. J. Follows. Redox-informed models of global biogeochemical cycles. Nature Communications (Perspective) 11: 5680 (2020) doi:10.1038/s41467-020-19454-w
Walworth, N. G., E. J. Zakem, J. P. Dunne, S. Collins, and N. M. Levine. Microbial evolutionary strategies in a dynamic ocean. PNAS 117 (11): 5943-5948 (2020) doi:10.1073/pnas.1919332117
Zhang, Y., W. Qin, L. Hou, E. J. Zakem, X. Wan, Z. Zhao, L. Liu, K. A. Hunt, N. Jiao, S. Kao, K. Tang, X. Xie, J. Shen, Y. Li, M. Chen, X. Dai, C. Liu, W. Deng, M. Dai, A. E. Ingalls, D. A. Stahl, and G. Herndl. Nitrifier adaptation to low energy flux controls inventory of reduced nitrogen in the dark. PNAS 117 (9): 4823-4830 (2020) doi:10.1073/pnas.1912367117
Wu, P., E. J. Zakem, S. Dutkiewicz, and Y. Zhang. Biomagnification of methylmercury in a marine plankton ecosystem. Environmental Science & Technology 54 (9): 5446-5455 (2020) doi: 10.1021/acs.est.9b06075
Zakem, E. J. and N. M. Levine. Systematic variation in marine dissolved organic matter stoichiometry and remineralization ratios as a function of lability. Global Biogeochemical Cycles 33 (11): 1389-1407 (2019) doi:10.1029/2019GB006375
Zakem, E. J., A. Mahadevan, J. Lauderdale, and M. J. Follows. Stable aerobic-anaerobic coexistence in anoxic marine zones. The ISME Journal 14: 288-301 (2019) doi:10.1038/s41396-019-0523-8
Zakem, E. J., A. Al-Haj, M. J. Church, G. L. van Dijken, S. Dutkiewicz, S. Q. Foster, R. W. Fulweiler, M. M. Mills, and M. J. Follows. Ecological control of nitrite in the upper ocean. Nature Communications 9: 1206 (2018) doi: 10.1038/s41467-018-03553-w
Zakem, E. J. and M. J. Follows. A theoretical basis for a nanomolar oxygen concentration. Limnology and Oceanography 62 (2): 795-805 (2016) doi: 10.1002/lno.10461
Badgley, C., J. Moghtader, E. Quintero, E. Zakem, M. J. Chappell, K. Aviles-Vazquez, A. Samulon, and I. Perfecto. Organic agriculture and the global food supply. Renewable Agriculture and Food Systems 22: 86-108 (2007)
C. Badgley, S. Nelson, N. Beranek, and E. Zakem. Microwear analysis of squirrel teeth. Journal of Vertebrate Paleontology 25 (3): 33A (2005)
Nelson, S., C. Badgley, and E. Zakem. Microwear in modern squirrels in relation to diet. Palaeontologia Electronica 8 (1): 14A (2005)