Wheat, Christopher W.; Vogel, Heiko; Wittstock, Ute; Braby, Michael; Underwood, Dessie; Mitchell-Olds, Thomas
Ehrlich and Raven formally introduced the concept of stepwise coevolution using butterfly and angiosperm interactions in an attempt to account for the impressive biological diversity of these groups. However, many biologists currently envision butterflies evolving 50 to 30 million years (Myr) after the major angiosperm radiation and thus reject coevolutionary origins of butterfly biodiversity. The unresolved central tenet of Ehrlich and Raven's theory is that evolution of plant chemical...[Show more]
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