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. 2018 Jun 5;9:715. doi: 10.3389/fpls.2018.00715

Table 2.

Percent contribution and permutation importance of the environmental variables used in the final models.

Predictor variable Contribution [%] Permutation importance
Distance to nearest road 72.3 (–) 53.4 (–)
Maximum temperature of warmest month 12.1 (52.6) 24.3 (54.7)
Land cover 6.3 (22.8) 5.0 (7.5)
Mean temperature of wettest quarter 5.6 (13.1) 14.6 (22.0)
Precipitation seasonality 3.7 (10.0) 2.7 (15.6)
Human influence index 0 (1.3) 0 (0.2)

Results of model 2 are given in brackets. The higher the relative information of a single variable, the more decisive it is for the current pattern of propagation.

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