Data from: Sensory limitations and the maintenance of color polymorphisms: viewing the ‘alba’ female polymorphism through the visual system of male Colias butterflies

Lisa B. Limeri & Nathan I. Morehouse
Although color polymorphisms are a widespread and conspicuous component of extant biodiversity, the selective pressures that act to maintain multiple morphs within populations remain poorly understood in most cases. In particular, the role that visual system limitations may play in maintaining multiple color morphs is not well explored. We used a female-limited color polymorphism common to the butterfly genus Colias, called the ‘alba’ polymorphism, to investigate the hypotheses that mate-searching males may struggle to discriminate...
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