Species distribution models.

SDMs showing the climatically suitable areas for Boloria eunomia at (A) present conditions and (B) LGM (about 22,000 years ago) and Boloria selene (C) present conditions, (D) LGM. The blue colours show the suitability from 0.14 for B. eunomia and 0.064 for B. selene (the average minimal training presence threshold, including the least suitable training record) and the red colours from 0.347 for B. eunomia and 0.338 for B. selene (the average ten percentile training presence threshold, suitability of 90% of the training data). The LGM glacial sheet was redrawn from Ehlers et al. [66]; the drawing is not identical to the original shape file and therefore, it is only for illustrative purposes.