Table 1. Summary statistics for each clustering approach.

	97% OTUs across samples	97% OTUs within samples	100% OTUs
Number of OTUs	94	106	4,718
Range of OTU counts	10 − 74, 2671	10 − 47, 2752	10 − 17, 1212
Range of reads per sample	706 − 16, 9884	707 − 16, 9890	485 − 97, 003
Geometric mean (*/ GSD) reads per sample	13,141 */ 2	13,137 */ 2	8,141 */ 2