Figure 2
From: Contemporary environmental variation determines microbial diversity patterns in acid mine drainage

Relative abundances (%) of dominant lineages (phylum level) in overall communities and in different groups of AMD samples along the gradient of pH levels. The numbers above the columns indicate the number of samples in each group. Others include 12 phyla: Bacteroidetes, Chlamydiae, Chloroflexi, Crenarchaeota, Cyanobacteria, Deinococcus-Thermus, Gemmatimonadetes, OD1, OP11, Planctomycetes, TM7 and Verrucomicrobia; and two subphyla for Proteobacteria: Deltaproteobacteria and Epsilonproteobacteria.