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Selective predation of aposematic signals is expected to promote phenotypic uniformity. But while these signals may be uniform within a population, numerous species display impressive variations in warning signals among adjacent populations. Predators from different localities who learn to avoid distinct signals while performing intense selection on others(More)
Despite accumulating evidence for selection within natural systems, the importance of random genetic drift opposing Wright's and Fisher's views of evolution continue to be a subject of controversy. The geographical diversification of aposematic signals appears to be a suitable system to assess the factors involved in the process of adaptation since both(More)
Due to their preference for undisturbed habitats, the butterflies of the genus Melinaea are promising indicators of ecological conditions. Here we describe 12 polymorphic microsatellite markers, with 3–26 alleles per locus, an observed heterozygosity of 0.138–0.889, and an expected heterozygosity of 0.400–0.970. These markers will prove useful in(More)
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