TABLE 2 Best-fit models from distance-based redundancy analyses
(dbRDA) on community composition (Simpson dissimilarity index,
βSIM) of sampling sites at ASV and OTU levels, performed
either with all sites (across habitats) or separately for each of the
forest habitat types. The explanatory variables were forward selected
from full models containing three sets of predictors: forest habitat
type (HAB), spatial (SPAPCNMi) and topoclimatic
(ENVPCi) variables. The adjusted coefficient of
determination (R 2ADJ) for each
model is provided. The Pinus nigra (Pn) and Juniperus foetidissima (Jn) sampling sites were
both separately and jointly analyzed according to results of NMDS-based
ordinations (Figure 2). Predictor information for models with no
significant variables (null) is replaced by dashes.