FIGURE 3 in The evolutionary history of the white wagtail species complex, (Passeriformes: Motacillidae: Motacilla alba)

FIGURE 3 Results of the identity test. Red and blue arrows show the true calculated niche overlap results. Columns represent the amount of niche overlap in the replicates of the identity tests. The true calculated overlap values (I and D) are far outside the 99.9% confidence intervals of the identity test results and thus highly significant (indicated by two asterisks**).