Data from: Sustained plumage divergence despite weak genomic differentiation and broad sympatry in sister species of Australian woodswallows (Artamus spp.)

Joshua Peñalba, Jeffrey Peters & Leo Joseph
Plumage divergence can function as a strong premating barrier when species come into secondary contact. When it fails to do so, the results are often genome homogenization and phenotypic hybrids at the zone of contact. This is not the case in the largely sympatric masked woodswallow and white-browed woodswallow species (Passeriformes: Artamidae: Artamus spp) complex in Australia where phenotypic integrity is sustained despite no discernible mitochondrial structure in earlier work. This lack of structure may...
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