Data from: Key ornamental innovations facilitate diversification in an avian radiation

Rafael Maia, Dustin R. Rubenstein & Matthew D. Shawkey
Patterns of biodiversity are often explained by ecological processes, where traits that promote novel ways of interacting with the environment (key innovations) play a fundamental role in promoting diversification. However, sexual selection and social competition can also promote diversification through rapid evolution of ornamental traits. Because selection can operate only on existing variation, the tendency of ornamental traits to constrain or enable the production of novel phenotypes is a crucial but often overlooked aspect of...
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