Table 4. Taxa identified at the order or family level as indicators using Indicator Taxa Analysis.
| Site classification | (IV) | Mean | s.d. | P | Taxon (phylum, class, order) |
|---|---|---|---|---|---|
| Identified to order | |||||
| Unmined | 94.3 | 42.5 | 12.4 | <0.001 | Proteobacteria, Betaproteobacteria, YCC11 |
| Unmined | 75.3 | 56.4 | 9.96 | 0.046 | Proteobacteria, Betaproteobacteria, A21b |
| Unmined | 72.3 | 55.6 | 7.31 | 0.0194 | Proteobacteria, Alphaproteobacteria, Ellin329 |
| Unmined | 71.5 | 56.2 | 6.32 | 0.012 | Proteobacteria, Alphaproteobacteria, Rickettsiales |
| Group A | 84.7 | 50 | 10.68 | 0.004 | Proteobacteria, Deltaproteobacteria, Myxococcales |
| Group A | 83.9 | 38.8 | 10.05 | 0.001 | Proteobacteria, Gammaproteobacteria, HTCC2188 |
| Group A | 78 | 56.5 | 7.09 | 0.0036 | Proteobacteria, Gammaproteobacteria, Legionellales |
| Group A | 77.3 | 60 | 7.11 | 0.008 | Nitrospirae, Nitrospira, Nitrospirales |
| Group A | 76.8 | 51.9 | 10.62 | 0.0168 | Proteobacteria, Betaproteobacteria, MND1 |
| Group A | 76.4 | 51.4 | 11.14 | 0.0238 | Proteobacteria, Betaproteobacteria, Rhodocyclales |
| Group B | 86.6 | 42.1 | 10.35 | 0.0012 | Firmicutes, Bacilli, Bacillales |
| Group B | 75 | 29.2 | 10.23 | 0.0028 | Acidobacteria, Acidobacteria-6, CCU21 |
| Site classification | (IV) | Mean | s.d. | P | Taxon (phylum, class, order, family) |
| Identified to family | |||||
| Unmined | 76.9 | 53 | 10.91 | 0.0286 | Proteobacteria, Betaproteobacteria, A21b, EB1003 |
| Group A | 100 | 38.9 | 10.6 | <0.001 | Proteobacteria, Gammaproteobacteria, Legionellales, Legionellaceae |
| Group A | 83 | 39.2 | 10.56 | 0.0032 | Proteobacteria, Gammaproteobacteria, HTCC2188, 211ds20 |
| Group A | 77.8 | 60.6 | 7.48 | 0.0142 | Nitrospirae, Nitrospira, Nitrospirales, Nitrospiraceae |
| Group A | 76.4 | 51.3 | 11.29 | 0.0248 | Proteobacteria, Betaproteobacteria, Rhodocyclales, Rhodocyclaceae |
| Group A | 72.7 | 56.5 | 4.84 | 0.0016 | Acidobacteria, Acidobacteria-6, iii1-15, RB40 |
| Group A | 70.5 | 56.4 | 4.13 | <0.001 | Proteobacteria, Betaproteobacteria, Methylophilales, Methylophilaceae |
| Group B | 80.8 | 41.5 | 9.84 | 0.002 | Firmicutes, Bacilli, Bacillales, Bacillaceae |
| Group B | 71.8 | 56.4 | 4.76 | 0.0026 | Bacteroidetes, Sphingobacteriia, Sphingobacteriales, Flexibacteraceae |
Showing the top indicators with ⩾70% perfect indication based on relative abundance and relative frequency. Unmined indicators identified in comparison with all mined sites grouped. Comparison of group A (outlined symbols in Figures 2 and 3a) and group B (symbols not outlined in Figures 2 and 3a) did not include unmined sites.