Figure 4: Distribution of pairwise Hedrick’sG’ST values for the sampled snow bunting (Plectrophenax nivalis ) breeding populations based on the 101 functional Single Nucleotide Polymorphism (SNP) loci. Pairwise comparisons identified as under neutral processes (blue dots) fall within the 99.9% microsatellite marker confidence interval range (shown as error bars for each population comparison). Divergent (black dots) and stabilizing (green dots) selection were determined using the same neutral CI. It was not possible to determine selection status (“Undetermined’; red dots) due to the neutral microsatellite range including zero. See Table 2 for descriptions of population codes.