Fig. 1: Study system and predictions. | Nature Communications

Fig. 1: Study system and predictions.

From: The genetics of extrinsic postzygotic selection in a migratory divide between subspecies of the Swainson’s thrush

Fig. 1

a Range map showing the breeding and wintering grounds for coastal (purple) and inland (green) Swainson’s thrushes. Polygons in lighter color show summarized migratory routes taken by coastal (purple) and inland (green) thrushes on spring migration (Delmore et al.26). Range map obtained from the BirdLife International and Handbook of the Birds of the World76. b The expected results for loci under selection with a change in the frequency of interspecific heterozygosity/ancestry mismatch over time, in contrast to neutral loci. Shading reflects hypothesized prediction lines and confidence intervals. The diagram c visualizes how ancestry mismatch was calculated as the Euclidean distance of an individual from the line formed between the mean ancestries for coastal and inland birds. Colors reflect pure forms (purple and green) and hybrids (blue).

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