3.4 Quantifying the relative impact of IBE, IBD, IBB, and IBP on genomic differentiation
The GDM based on pairwise FST values explained 83% of the variation in the model. Geographic distance, precipitation seasonality, precipitation of warmest quarter, precipitation of coldest quarter, and percent tree cover were all significant predictor variables in the full models. In contrast, when SNP presence-absence data was used as the biological response variable, the full models explained 97% of the variation and only geographic distance, precipitation of the warmest quarter, and precipitation of the coldest quarter were significant variables (Table 1). Neither IBB or IBP were significant in any of the models.