Fig. 1

PCoA map of scorpion ecospace. The ecospace is depicted by species (dots) colored according to ecomorph affiliation. Dots are colored based on the four clusters obtained with the R package mclust. For illustration purposes, and because it explains approximately the same variation as the second PCoA dimension, we plotted the third PCoA dimension in the vertical axis. Moreover, only species with a cos² correlation higher than 0.70 with both dimensions for the pelophilous and phytophilous ecomorphs, and a cos² correlation higher than 0.45 for the psammophilous and lithophilous ecomorphs are labeled. Percentage values refer to the variation explained by each axis. See Additional file 3: Fig. S3 for contributions of microhabitat variables to axis composition