17 research outputs found

    DRYAD-STLE-analysis

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    Data files and scripts for all analyses and figures in Maddamsetti and Lenski (2018)

    Meta-analysis of laboratory studies predicts large changes in phytoplankton communities in an acidifying ocean

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    <p>Many studies have attempted to predict the consequences of climate change on the ocean's primary producers. While attempts to synthesize studies of the effects of temperature increase on phytoplankton have been relatively common, we are unaware of any similar effort related to the "other CO2 problem" of ocean acidification. Here we extract data from 40 manuscripts in which unialgal phytoplankton cultures were grown under either low-ambient CO2 concentrations or else elevated CO2 near levels predicted for year 2100. Phytoplankton responses to CO2 enrichment were quite variable between studies, and different strains could be positively or negatively affected under future concentrations. There was a significant difference between the CO2 response of different functional groups: eukaryotes and Prochlorococcus were roughly equally likely to be positively or negatively impacted, whereas most other cyanobacteria, including diazotrophs, were strongly enhanced under future conditions. Dynamical ecological simulations incorporating these observations suggest that the impact of CO2 on growth rates alone will be sufficient to profoundly alter the distribution and relative abundance of the major phytoplankton functional groups by 2100, with potential profound impacts on the ecosystem services of the World Ocean.</p

    Additional file 2: Figure S2. of Metabolic modelling in a dynamic evolutionary framework predicts adaptive diversification of bacteria in a long-term evolution experiment

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    Diauxic growth in DM250 medium containing glucose and acetate at 10:90 ratio. Clone 6.5KS1 (red) exhibits a diauxic shift from glucose to acetate consumption much earlier than either the ancestor (green) or clone 6.5KL4 (blue). Curves show the average of three biological replicates. (PDF 113 kb
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