Environmental models of floristic similarity in the Alps and the Scandes.

Regression coefficients from the best environmental model of floristic similarity (simjk) against the distance matrices of all six of Ellenberg's indicator factors (dL, dT, dK, dF, dR, and dN) and plot size (dA) for each of the two geographical regions. Significance of the coefficients was estimated by computing 10,000 permutations of the objects of the response distance matrix, namely the floristic similarity matrix, while holding the explanatory distance matrices constant.