Table 3. PERMANOVA analysis results of groups formed using ANOSIM analysis and the relationships with the main environmental variables.
| Stream | Groups compared | Discharge | SOI | DSLS | Average Precipitation | Organic Matter | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| F | p | F | p | F | p | F | p | F | p | |||
| Carapa-60 | ||||||||||||
| Presence | Group 1 vs Group 2 | 12.89 | <0.001 | 1.31 | 0.256 | 2.10 | 0.158 | -- | -- | -- | -- | |
| Group 1 vs Group 3 | 4.52 | 0.035 | 0.075 | 0.777 | 2.07 | 0.158 | -- | -- | -- | -- | ||
| Group 2 vs Group 3 | 0.02 | 0.881 | 0.44 | 0.502 | 0.73 | 0.397 | -- | -- | -- | -- | ||
| Abundance | Group 1 vs Group 2 | -- | -- | -- | -- | 16.92 | 0.003 | 5.42 | 0.024 | -- | -- | |
| Group 1 vs Group 3 | -- | -- | -- | -- | 18.90 | 0.002 | 5.70 | 0.019 | -- | -- | ||
| Group 1 vs Group 4 | -- | -- | -- | -- | 27.47 | <0.001 | 12.80 | <0.001 | -- | -- | ||
| Group 2 vs Group 3 | -- | -- | -- | -- | <0.1 | 0.989 | 0.29 | 0.584 | -- | -- | ||
| Group 2 vs Group 4 | -- | -- | -- | -- | 2.59 | 0.112 | 8.84 | 0.005 | -- | -- | ||
| Group 3 vs Group 4 | -- | -- | -- | -- | 2.75 | 0.098 | 6.25 | 0.013 | -- | -- | ||
| Saltito-100 | ||||||||||||
| Presence | Group 1 vs Group 2 | -- | -- | 12.97 | <0.001 | -- | -- | -- | -- | 6.80 | 0.01 | |
| Abundance | Group 1 vs Group 2 | -- | -- | -- | -- | -- | -- | 3.30 | 0.078 | -- | -- | |
| Group 1 vs Group 3 | -- | -- | -- | -- | -- | -- | 8.91 | 0.004 | -- | -- | ||
| Group 1 vs Group 4 | -- | -- | -- | -- | -- | -- | 10.85 | 0.003 | -- | -- | ||
| Group 2 vs Group 3 | -- | -- | -- | -- | -- | -- | 3.91 | 0.054 | -- | -- | ||
| Group 2 vs Group 4 | -- | -- | -- | -- | -- | -- | 6.58 | 0.014 | -- | -- | ||
| Group 3 vs Group 4 | -- | -- | -- | -- | -- | -- | 0.89 | 0.347 | -- | -- | ||