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Number of significant taxa after including each set of covariates in a variance component model. ‘removed' and ‘added' columns are relative to the no-covariate model. Significance was determined by controlling the false discovery rate at q-values < 0.05.
| term(s) | removed | added | significant |
|---|---|---|---|
| none | 0 | 0 | 460 |
| geo | 338 | 21 | 143 |
| com | 460 | 0 | 0 |
| env | 281 | 1 | 180 |
| geo + com | 458 | 0 | 2 |
| geo + env | 377 | 13 | 96 |
| com + env | 447 | 0 | 13 |
| geo + com + env | 454 | 0 | 6 |
