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. 2014 Aug 21;9(8):e102879. doi: 10.1371/journal.pone.0102879

Figure 2. Pareto-Lorenz curves derived from phycosphere samples in Lake Taihu.

Figure 2

The 16S rRNA gene sequences were divided in OTUs based on a sequence similarity threshold of 97% and the OTUs were ranked from high to low, based on their abundance. The Pareto-Lorenz evenness curve is the plot of the cumulative proportion of OTU abundance (y-axis) against the cumulative proportion of OTUs (x-axis). The Fo index, i.e. the combined relative abundance of 20% of the OTUs, is shown. The 45° diagonal is the Pareto-Lorenz curve of a community with perfect evenness.