These authors contributed equally to this work.
FEMALE PREFERENCE FOR MALE COURTSHIP EFFORT CAN DRIVE THE EVOLUTION OF MALE MATE CHOICE
Version of Record online: 19 JUL 2012
© 2012 The Author(s). Evolution© 2012 The Society for the Study of Evolution.
Volume 66, Issue 12, pages 3722–3735, December 2012
How to Cite
South, S. H., Arnqvist, G. and Servedio, M. R. (2012), FEMALE PREFERENCE FOR MALE COURTSHIP EFFORT CAN DRIVE THE EVOLUTION OF MALE MATE CHOICE. Evolution, 66: 3722–3735. doi: 10.1111/j.1558-5646.2012.01716.x
- Issue online: 3 DEC 2012
- Version of Record online: 19 JUL 2012
- Accepted manuscript online: 6 JUL 2012 07:10PM EST
- Received September 26, 2011 Accepted May 29, 2012
- intrasexual competition;
- male mate choice;
- mutual mate choice;
- sexual selection
The evolution of male mate choice is constrained by costs of choice in species with a male-biased operational sex ratio (OSR). Previous theoretical studies have shown that significant benefits of male choice are required, for example, by mating with more fecund females, in order for these costs to be offset and a male preference to spread. In a series of population genetic models we show the novel effect that male mating preference, expressed as a bias in courtship, can spread when females prefer, and thus are more likely to mate with, males who court more. We explore two female preference functions for levels of male courtship, one representing a threshold and the other a weighted female preference. The basic finding generally holds for both preference functions. However, the preference function greatly affects the spread of a male preference allele after the addition of competing males who can court more in total. Our results thus stress that a thorough understanding of the response of females to male courtship is a critical component to understanding male preference evolution in polygynous species.