Fig. 2From: A mistletoe tale: postglacial invasion of Psittacanthus schiedeanus (Loranthaceae) to Mesoamerican cloud forests revealed by molecular data and species distribution modelingPrincipal components analysis (PCA) on the 19 BIOCLIM variables with the first principal component (PC1) largely a measure of precipitation conditions, and the second principal component (PC2) mainly determined by temperature measures. Numbers refer to collection sites (see Additional file 2) and pie charts represent trnL-F haplotypes found in each sampling locality (see Fig. 5)Back to article page