Table 5.

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

Sulfate concentration (mM)	0.5	2	4	10	15	25
0.5
2	0.483a
4	0.996a	0.056
10	0.647a	0.013	−0.092
15	0.995a	0.194a	0.045	0.090
25	0.976a	0.247a	0.287b	0.217b	0.085

^aValue is significant at the 0.05 level

^bValue is significant at the 0.01 level