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Goebel, N.L., C.A. Edwards, J.P. Zehr, M.J. Follows and S.G. Morgan (2013), Modeled phytoplankton diversity and productivity in the California Current System, Ecological Modelling, vol. 264, pp. 37, doi: 10.1016/j.ecolmodel.2012.11.008
Category Archives: Diversity and Biogeography
Winners and losers in a warming ocean
by Alli Gold Roberts (MIT Joint Program on the Science and Policy of Global Change)
Read this story at MIT News
Phytoplankton — small plant-like organisms that serve as the base of the marine ecosystem — play a crucial role in maintaining the health of our oceans by consuming carbon dioxide and fueling the food web. But with a changing climate, which of these vital organisms will survive, and what impact will their demise have on fish higher up the chain?
Stephanie Dutkiewicz, a researcher with the MIT Joint Program on the Science and Policy of Global Change, and her colleagues developed a model that investigates the potential effects of climate change on phytoplankton.
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Ward, B.A., S. Dutkiewicz, C.M. Moore and M.J. Follows (2013), Iron, phosphorus, and nitrogen supply ratios define the biogeography of nitrogen fixation Limnology and Oceanography, vol. 58, pp. 2059, doi: 10.4319/lo.2013.58.6.2059
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Barton, A.D., Z.V. Finkel, B.A. Ward, D.G. Johns and M.J. Follows (2013), The roles of cell size and trophic strategy in North Atlantic diatom and dinoflagellate communities. Limnology and Oceanography, 58(1), 2013, 254-266, doi: 10.4319/lo.2013.58.1.0254
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Dutkiewicz, S. (2012), Power in Modeling Virtual Marine Microbes, Microbes magazine, 7, 314-319, LINK
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Dutkiewicz, S., B. A. Ward, F. Monteiro, and M. J. Follows (2012), Interconnection of nitrogen fixers and iron in the Pacific Ocean: Theory and numerical simulations, Global Biogeochem. Cycles, 26, GB1012, doi: 10.1029/2011GB004039
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Karsenti, E., S.G. Acinas, P. Bork, C. Bowler, C. De Vargas, J. Raes, M. Sullivan, D. Arendt, F. Benzoni, J.-M. Claverie, M. Follows, G. Gorsky, P. Hingamp, D. Ludicone, O. Jaillon, S. Kandels-Lewis, U. Krzic, F. Not, H. Ogata, S. Pesant, E.G. Reynaud, C. Sardet, M.E. Sieracki, S. Speich, D. Velayoudon, J. Weissenbach, P. Wincker (2011), A Holistic Approach to Marine Ecosystems Biology, PLoS Biology, 9(10), 1-5, doi: 10.1371/journal.pbio.1001177
Ecology of nitrogen fixers in the Pacific Ocean
Nitrogen is an essential component of all cells. It is used to make the amino acid building blocks of proteins, and is also required in the nucleic acids of DNA and RNA. Although nitrogen extremely abundant in the open ocean, it is mostly found in dissolved N2 molecules that cannot be used by most phytoplankton, who require nitrogen in its reduced, or “fixed” forms, such as nitrate or ammonium.
Continue reading Ecology of nitrogen fixers in the Pacific Ocean
Biogeographical controls on the marine nitrogen fixers
In this study, Fanny Monteiro, Stephanie Dutkiewicz and Mick Follows, interpret the environmental controls on the global ocean diazotroph biogeography in the context of a three-dimensional global model with a self-organizing phytoplankton community.
Continue reading Biogeographical controls on the marine nitrogen fixers
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Monteiro, F., S. Dutkiewicz, and M.J. Follows (2011), Biogeographical controls on the marine nitrogen fixers, Global Biogeochemical Cycles, 25, GB2003, doi:10.1029/2010GB003902