Table 1. Frequencies (in %) of significant effects and mean effect sizes (in parentheses) of the four stressors (DCD, sediment addition, flow velocity reduction and nutrient enrichment) and their significant two- or three-way interactions on the abundant (>1.0%) bacterial taxa at the four taxonomic levels and the abundant plus common (>0.3%) bacterial species.
| Phylum | Order | Genus | Species |
||
|---|---|---|---|---|---|
| >1.0% (8 phyla) | >1.0% (21 orders) | >1.0% (25 genera) | >1.0% (16 species) | >0.3% (43 species) | |
| DCD | 75% (0.34) | 76% (0.34) | 76% (0.32) | 88% (0.27) | 88% (0.27) |
| Sediment | 75% (0.22) | 43% (0.16) | 48% (0.17) | 50% (0.16) | 60% (0.20) |
| Flow velocity | 25% (0.16) | 43% (0.17) | 36% (0.16) | 19% (0.28) | 30% (0.24) |
| Nutrients | 0% | 5% (0.20) | 0% | 0% | 2% (0.37) |
| DCD × Sed | 13% (0.11) | 10% (0.12) | 4% (0.10) | 6% (0.10) | 12% (0.11) |
| DCD × Flow | 13% (0.09) | 14% (0.12) | 12% (0.11) | 13% (0.17) | 14% (0.14) |
| DCD × Nut | 0% | 0% | 0% | 0% | 5% (0.10) |
| Sed × Flow | 0% | 5% (0.14) | 0% | 0% | 2% (0.08) |
| Sed × Nut | 0% | 0% | 4% (0.12) | 0% | 2% (0.19) |
| Nut × Flow | 0% | 5% (0.13) | 0% | 0% | 0% |
| DCD × Sed × Nut | 0% | 0% | 0% | 0% | 2% (0.09) |
No four-way interactions were significant.