The evolution of sex differences in mate-attracting signalling

Kenji Yoshida, Yoh Iwasa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Question: To attract mates, many insects dance, have conspicuous plumage, call vocally, and emit signals such as pheromones. Mate-attracting signals are produced predominantly by males in some species and by females in others. We ask, which sex should evolve to produce mate-attracting signals? Method: We used a quantitative genetic model for the signal-sending and signal-receiving efforts of the two sexes. Mate-finding success is assumed to be a product of power functions of the signal sender's and signal receiver's investments. Results: If mate-finding success strongly depends on the investments of both senders and receivers, only one sex evolves to send the signals; otherwise, both sexes evolve to emit signals. Males evolve to assume the role that more strongly affects mate-finding success, and to engage in mate-finding activities with more investments than females.

Original languageEnglish
Pages (from-to)919-931
Number of pages13
JournalEvolutionary Ecology Research
Volume15
Issue number8
Publication statusPublished - 2013

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics

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