Adaptive radiations should not be simplified: The case of the danthonioid grasses

摘要

Graphical abstractDisplay OmittedHighlights?Austral Danthonioid diversity is the result of two parallel adaptive radiations.?The predicted patterns of adaptive radiations can be rigorously tested, its causes not.?The causalities between traits and radiations are ambiguous.?Simplifying data gives misleading information of adaptive radiation.AbstractAlthough much of extant diversity is probably the product of evolutionary radiations, the special case of adaptive radiations has not yet been thoroughly explored. Adaptive radiations are postulated to occur when a lineage is exposed to new ecological opportunities