Article
Elaborate visual and acoustic signals evolve independently in a large, phenotypically diverse radiation of songbirds.
Proceedings. Biological sciences - 7 Aug 2014
Mason Nicholas A, Shultz Allison J, Burns Kevin J
Abstract excerpt
The concept of a macroevolutionary trade-off among sexual signals has a storied history in evolutionary biology. Theory predicts that if multiple sexual signals are costly for males to produce or maintain and females prefer a single, sexually selected trait, then an inverse correlation between sexual signal elaborations is expected among species. However, empirical evidence for what has been termed the 'transfer...
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