Alternative trait combinations and secondary resource partitioning in sexually selected color polymorphism

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Alternative trait combinations and secondary resource partitioning in sexually selected color polymorphism

Resource partitioning within a species, trophic polymorphism is hypothesized to evolve by disruptive selection when intraspecific competition for certain resources is severe. However, in this study, we reported the secondary partitioning of oviposition resources without resource competition in the damselfly Ischnura senegalensis. In this species, females show color polymorphism that has been ev...

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The evolution of conspicuous sexually selected traits, such as horns or antlers, has fascinated biologists for more than a century. Elaborate traits can only evolve if they substantially increase reproduction, because they probably incur survival costs to the bearer. Total selection on these traits, however, includes sexual selection on sires and viability selection on offspring and can be infl...

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ژورنال

عنوان ژورنال: Ecology and Evolution

سال: 2013

ISSN: 2045-7758

DOI: 10.1002/ece3.610