Effects of warming on phytoplankton biodiversity.

<p>Analyses reveal that (<b>a</b>) local taxon richness, (<b>b</b>) the Shannon-Diversity Index, and (<b>c</b>) total biomass were significantly elevated on average over the year in the warmed treatments. On the contrary, annual levels of (<b>d</b>) total abundance did not differ significantly between treatments (see also <a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.1002324#pbio.1002324.s013" target="_blank">S1 Table</a>). Different colors are used to represent warmed (red) and ambient (black) treatments. Tops and bottoms of boxes in box-whisker plots correspond to the 25th and 75th percentiles, horizontal white lines correspond to medians, and whisker extents correspond to 1.5 x the interquartile range. The data underlying these analyses can be found in <a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.1002324#pbio.1002324.s001" target="_blank">S1 Data</a>.