Open Access
Table 3
Correlations of environmental variables with the NMDS ordinations of macroinvertebrates (D and N separately) and the significance of the correlation based on the envfit function (9999 permutations). The goodness-of-fit statistic is the squared correlation coefficient (r2) (mean_diam = mean riverbed substrate diameter).
| Daytime (D) | Nighttime (N) | |||||
|---|---|---|---|---|---|---|
| Variables | r 2 | p-value | r 2 | p-value | ||
| Velocity | 0.578 | 0.0001 | *** | 0.457 | 0.0002 | *** |
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| Depth | 0.023 | 0.6831 | 0.128 | 0.1129 | ||
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| CPOM | 0.194 | 0.0305 | * | 0.289 | 0.0048 | ** |
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| mean_diam | 0.297 | 0.0033 | ** | 0.075 | 0.2859 | |
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