Table 1.

Diversity statistics for Archaea, Bacteria, and “Major” phylum groups. Coverage = #OTUs/rarefaction estimate; OTU and abundance were calculated using a 0.03 dissimilarity cut-off.

Group	Total sequences	Unclassified to phylum	Number of OTUs	ACE	Chao1	Rarefaction estimation	Current coverage (%)
Bacteria	12583	none	6383	30581	17176	15768	41
Pro	5763		2791	12472	7245	6811	40
Act	783		418	2280	1088	1033	46
Aci	1345		731	2972	1693	1602	28
Fir	973		540	3595	1856	1915	54
Bact	2244		868	2700	1887	1601	59
Archaea	1735	none	521	1131	884	883	83
Eur	925		418	681	505	504	62
Cre	810		197	442	311	320	41