The impact of life stage and pigment source on the evolution of novel warning signal traits

Carita Lindstedt, Robin Bagley, Sarah Calhim, Mackenzie Jones & Catherine Linnen
Our understanding of how novel warning color traits evolve in natural populations is largely based on studies of reproductive stages and organisms with endogenously produced pigmentation. In these systems, genetic drift is often required for novel alleles to overcome strong purifying selection stemming from frequency-dependent predation and positive assortative mating. Here, we integrate data from field surveys, predation experiments, population genomics, and phenotypic correlations to explain the origin and maintenance of geographic variation in a...
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