Dutkiewicz, S., Ward, B. A., Scott, J. R., and Follows, M. J. (2014) Understanding predicted shifts in diazotroph biogeography using resource competition theory, Biogeosciences, 11, 5445-5461, doi: 10.5194/bg-11-5445-2014.
Tag Archives: Dutkiewicz
Moore, R.M., M. Kienast, M. Fraser, J. Cullen, C. Deutsch, S. Dutkiewicz, M.J. Follows, and C.J. Somes (2014), Substantial underestimation of nitrogen fixation suggested by hydrogen supersaturations in the Atlantic, Journal of Geophysical Research - Oceans , 119, 4340-4350, doi: 10.1002/2014JC010017.
Mixing Down Diversity
Phytoplankton are an extremely diverse set of floating, microscopic organisms, which are freely transported by water movements (current, eddies, etc.) and make up the base of the oceanic food web. This work, published in the September issue of Limnology & Oceanography: Fluids & Environments, explores how their diversity is affected by dispersal by different scales of motions in the ocean. Continue reading Mixing Down Diversity
Levy, M., O. Jahn, S. Dutkiewicz, and M.J. Follows (2014), Phytoplankton diversity and community structure affected by oceanic disperal and mesoscale turbulence, Limnology and Oceanography: Fluids and Environment, 4, 67-84, doi: 10.1215/21573689-2768549.
Phytoplankton Diversity versus Productivity in the Ocean
by Sergio Vallina
Dept of Marine Biology and Oceanography, Institute of Marine Sciences, Barcelona
How does species richness vary with ecosystem productivity for marine phytoplankton? This question has fascinated biological oceanographers for decades. Phytoplankton communities are composed of many species of unicellular micro-algae. They are at the base of the marine trophic foodweb, growing and surviving by means of photosythesis by fixing CO2; a process known as primary production. Continue reading Phytoplankton Diversity versus Productivity in the Ocean
Publication
Vallina, S.M., M.J. Follows, S. Dutkiewicz, J. Montoya, P. Cermeno, and M. Loreau (2014),
Global relationship between phytoplankton diversity and productivity in the ocean, Nature Communications, 5, 4299, doi: 10.1038/ncomms5299
Publication
Prowe, A.E.F., M. Pahlow, S. Dutkiewicz, and A. Oschlies (2014), How important is diversity to capture environmental change responses in ecosystem models? Biogeosciences, 11, 3397–3407, 2014, doi: 10.5194/bg-11-3397-2014
Publication
Death, R., J.L. Wadham, F. Monteiro, A.M. Le Brocq, M. Tranter, A. Ridgwell, A., S. Dutkiewicz, and R. Raiswell, (2014) Antarctic Ice Sheet fertilises the Southern Ocean, Biogeosciences, 11, 2635-2643, doi: 10.5194/bg-11-2635-2014
Darwin goes to Ocean Sciences 2014
Leaving the cold of a New England February behind, the Darwin team will be in full attendance at this year’s Ocean Sciences conference taking place February 23-28 in Honolulu, Hawaii.
Size Structure: exploring nutrient versus grazing control
Idealized equilibrium models have attributed the observed size structure of marine communities to the interactions between nutrient and grazing control. In a new paper in the Journal of Plankton Research Ben Ward and co-authors Stephanie Dutkiewicz and Mick Follows examine this theory in a more realistic context using a size-structured global ocean food-web model, together with a much simplified version of the same model for which equilibrium solutions are readily obtained.
Continue reading Size Structure: exploring nutrient versus grazing control