Coevolution may be considered among broad groups of taxa

Coevolution may be considered among broad groups of taxa -...

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Coevolution may be considered among broad groups of taxa, so called diffuse coevolution (such as the general coevolution between plants and insects [assuming it is real]). A nice idea, but in fact the real action must be going on between pairs of species from each group. It is true that the Pierid butterflies (family Pieridae) are associated with the plant family Cruciferae, so there may be something general about each taxon that allows the coevolution to proceed. But the true reciprocal events must be mediated at the host species-insect species level. Mimicry presents a context were coevolutionary phenomena should be
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Unformatted text preview: evident. Generally, we would expect that Mullerian mimicry would be more likely to exhibit reciprocal evolutionary patterns since both species involved are unpalatable and therefore have an opportunity to affect the evolution of each other's color patters. This does not mean that Batesian mimicry (one unpalatable model) will not involve coevolutionary phenomena, but the evolution of warning coloration is certainly going to be more asymmetrical since the palatable species will show a greater response to the state of the model than will the model show to the evolving state of the mimic....
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