Correlation between linear geographic distance and timberline wren’s genetic and song dissimilarities.

Each point represents a direct comparison between two populations. Yellow dots represent pairwise comparisons between populations separated only by distance, and blue dots represent pairwise comparisons between populations separated by a geographic barrier. Correlation between Fst and linear geographic distance in km (A), song dissimilarity and linear geographic distance in km (B), and between song dissimilarity and Fst (C). Fst estimates were transformed to Fst / (1 –Fst).