Table 1.
Variables used to explain the performance of oak regeneration.
Species in the overstory and regeneration are distinguished by capital and lower case letters, respectively.
Fig 1.
Canonical Correspondence Analysis (CCA) for the 48 plots (a), the species (b) and the environmental variables fit to the ordination (c).
The four development stages of oak are labeled as Oak1, Oak2, Oak3, and Oak4, total oak regeneration is labeled as OakT, the other labels follow the abbreviations given in Table 1.
Table 2.
Variables identified as important by the Boruta analysis.
Variables presented for predicting the abundance of total oak regeneration (OakT) and the regeneration in each development stage (Oak1 –Oak4), presented with their fraction of random forest runs (Norm Hits) in which they were more important than the most important shadow value.
Table 3.
Model coefficients with estimates and p-values of the regression models.
Models for logarithmically transformed values of total oak regeneration (OakT) and regeneration in each development stages (Oak1 –Oak4), presented together with the adjusted R2 of the models.