FIGURE 3.

The effects and relative importance of predictive variables in explaining the establishment success of exotic fishes. The standardized effect size (±95% and 70% credible intervals) was derived from the Bayesian hierarchical model with predictive variables standardized by subtracting the mean and dividing by the standard deviation. The relative importance of each predictor, expressed as the percentage of explained variance, was calculated using the ratio between its standardized parameter estimate and the sum of all standardized parameter estimates. Dashed lines indicate effect = 0. Positive effects (the 95% credible interval does not include zero) indicate that the probability of establishment increases with increasing values of predictive variables, while the negative effects indicate the converse.