Table 4.

ANOSIM pairwise comparison of similarities among archaeal communities following the addition of different sulfate concentrations

Sulfate concentration (mM)	0.5	2	4	10	15	25
0.5
2	−0.023
4	0.156a	−0.050
10	0.319a	0.136	−0.015
15	0.213a	0.020	−0.014	0.036
25	0.150a	−0.030	0.025	0.122	−0.001

^aValue is significant at the 0.05 level