Figure 1.

Community composition of long-term methane-fed microcosms. The samples were ordered from the highest to the lowest content of Methylobacter OTUs. Sample named starting with ‘A' originated from August 2011 enrichments, and the rest of the samples originated from June 2011 enrichments. Other, taxa found in fewer than three samples (Beggiatoa, Methylovorus, Acidovorax, Caulobacter, Polaromonas, Comamonadaceae, Allicyclobacillus, Bosea, Denitratisoma and Rhodobacter). See Supplementary Table 1 for details.