Fig. 3 in Geographic variation in a South American clade of mormoopid bats, Pteronotus (Phyllodia), with description of a new species

Fig. 3.—Principal component analysis displaying the cranial morphometric variation in the 2 sympatric species of the South American clade of Phyllodia (Clade 4C, Supplementary Data SD1). The correlation of the cranial variables with the 2 first principal components (PCs) is displayed in the center of the plot. The PC1 and PC2 correspond to 86.5% and 4.7% of the total variation, respectively. Higher values in PC1 represent larger cranial sizes while values in PC2 show variation in cranial breadth contrasted to the overall size. Numbers indicate the geographic location of individuals, whereas polygons delimit the area of each of these groups in the morphometric space.