Data from: Sperm competition generates evolution of increased paternal investment in a sex role-reversed seed beetle

Isobel Booksmythe, Karoline Fritzsche & Göran Arnqvist
When males provide females with resources at mating they can become the limiting sex in reproduction, in extreme cases leading to the reversal of typical courtship roles. The evolution of male provisioning is thought to be driven by male reproductive competition and selection for female fecundity enhancement. We used experimental evolution under male- or female-biased sex ratios and limited or unlimited food regimes to investigate the relative roles of these routes to male provisioning in...
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