Fig. 1

Bivariate posterior distributions of two exotic species (Acacia dealbata and Cytisus striatus) obtained from one informative and three non-informative priors: Jeffreys, Uniform and Haldane. \({\theta }_{1}\) represents the proportion of sites occupied at the Coast and \({\theta }_{2}\) represents the proportion of sites occupied at the Central Valley. The univariate marginal posterior distributions are also depicted over each axe. The points in graphics resulted from a Monte Carlo simulation