Warmer temperatures favor slower-growing bacteria in natural marine communities

Abreu, Clare I.MIT, USA;Stanford Univ, USA,Physics of Living Systems, Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA; Department of Biology, Stanford University, Stanford, CA, USA (författare)

Earth's life-sustaining oceans harbor diverse bacterial communities that display varying composition across time and space. While particular patterns of variation have been linked to a range of factors, unifying rules are lacking, preventing the prediction of future changes. Here, analyzing the distribution of fast- and slowgrowing bacteria in ocean datasets spanning seasons, latitude, and depth, we show that higher seawater temperatures universally favor slower-growing taxa, in agreement with theoretical predictions of how temperaturedependent growth rates differentially modulate the impact of mortality on species abundances. Changes in bacterial community structure promoted by temperature are independent of variations in nutrients along spatial and temporal gradients. Our results help explain why slow growers dominate at the ocean surface, during summer, and near the tropics and provide a framework to understand how bacterial communities will change in a warmer world.

Dal Bello, MartinaPhysics of Living Systems, Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA (författare)
Bunse, CarinaGothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences(Swepub:gu)xbunca (författare)
Pinhassi, JaroneLinnéuniversitetet,Institutionen för biologi och miljö (BOM),Ctr Ecol & Evolut Microbial Model Syst EEMiS,Centre for Ecology and Evolution of Microbial Model Systems, Department of Biology and Environmental Science, Linnaeus University, Kalmar, Sweden,EcoChange(Swepub:lnu)ypija (författare)
Gore, JeffPhysics of Living Systems, Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA (författare)
MIT, USA;Stanford Univ, USAPhysics of Living Systems, Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA; Department of Biology, Stanford University, Stanford, CA, USA (creator_code:org_t)

Ingår i:Science Advances: American Association for the Advancement of Science (AAAS)9:192375-2548

Av författaren/redakt...: Abreu, Clare I.; Dal Bello, Marti ...; Bunse, Carina; Pinhassi, Jarone; Gore, Jeff

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