Table 4.
Fit of environmental traits to redundancy analysis (RDA) results evaluated using a PERMANOVA test (999 iterations) performed using the vegan::anova.cca() function (Oksanen et al. 2018)
| Parameter | Abbreviation | df | Variance | F | Pr (> F) |
|---|---|---|---|---|---|
| Understory plants biomass | Understory biomass | 1 | 0.00905 | 4.4934 | < 0.001 |
| Cover proportion of Carpino-Fagetea sylvaticae and Alno glutinosae–Populetea albae classes plants in understory | CF | 1 | 0.00737 | 3.6581 | < 0.001 |
| Cover proportion of Vaccinio-Piceetea class plants in understory | VP | 1 | 0.00776 | 3.8531 | < 0.001 |
| Residuals | – | 319 | 0.64230 | – | – |