Effect of bright wing color of males on other males in Favonius taxila (Lepidoptera: Lycaenidae) with sexual dimorphism in wing color
2016
To examine the effect of wing colors of Favonius taxila males on other males, an intact bright butterfly model or a dull butterfly model whose wing scales had been dislodged was placed in a potential territory, and the behavior of invading males was recorded. The invader showed decreased probability of landing there with a bright model in place compared with a dull model, and exhibited complex flights with frequent turning for a bright model, in contrast to simple flights with relatively linear paths for a dull model. These results support the idea of intrasexual selection in which bright colors of males' wings have evolved through male–male interactions.
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