Bacterial community in class level.

<p>The minor groups denote the sum of rare phylotypes that were arbitrarily defined as having a frequency of <1% within a sample. The percentage of all taxa is described in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0086887#pone.0086887.s006" target="_blank">Table S2</a>.