Table 1.

Sequencing statistics and various alpha-diversity metrics for the subset of 16S rRNA gene fragments assigned to the Acidobacteria.

Sample No	Raw reads	Filtered reads∗	Reads from Acidobacteria	Diversity indices
				Chao1	Shannon	Observed species∗∗	Menhinick	Good’s coverage estimator
1	128,572	112,642	29264	837.8	5.4	550	3.2	0.992
2	402,892	356,887	91919 (34000)	1070.8 (1014.7)	5.6 (5.6)	974 (685)	3.2 (3.7)	0.997 (0.992)
3	151,288	136,837	36224	855.2	5.3	612	3.2	0.993

^∗Filtered reads: number of sequences excluding singletons and chimera sequences. ^∗∗Calculations are based on a sequence similarity cut-off of 97%. The randomized number of sequences is given in parentheses for the overrepresented sample 2.