Data from: Postmating isolation and genetically variable host use in ecologically divergent host forms of Neochlamisus bebbianae leaf beetles

Scott P Egan, Eric M Janson, Christopher G Brown & Daniel J Funk
Ecological speciation studies have more thoroughly addressed premating than postmating reproductive isolation. This study examines multiple postmating barriers between host forms of Neochlamisus bebbianae leaf beetles that specialize on Acer versus Salix trees. We demonstrate cryptic isolation and reduced hybrid fitness via controlled matings of these host forms. These findings reveal host-associated postmating isolation, although a non-ecological, ‘intrinsic’ basis for these patterns cannot be ruled out. Host preference and performance results among cross types further...
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