uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Female preference for male courtship effort drives the evolution of male mate choice
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal Ecology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal Ecology.
University of North Carolina.
(English)Manuscript (preprint) (Other academic)
Abstract [en]

The evolution of male mate choice is constrained by costs of choice in species with a male-biasedoperational sex ratio. Previous theoretical studies have shown that significant male benefits ofmale choice are required, e.g., by mating with more fecund females, in order for these costs to beoffset and the male preference to spread. We consider the possibility that another type of effectmay favour the evolution of male mate choice by exploring a series of population genetic models.We find that a male mating preference can spread when males court preferred females more andfemales prefer, and thus are more likely to mate with, males who court more. Further, viability orfecundity selection on the preferred female trait is a much more powerful determinant of the fateof the female trait than is the presence of the male preference. We confirm that indirect selectionon the male preference due to linkage disequilibrium between the female trait and malepreference alleles can affect the evolution of the male trait, however, these effects are slight incomparison to direct selection on the male trait.

National Category
Ecology
Identifiers
URN: urn:nbn:se:uu:diva-141925OAI: oai:DiVA.org:uu-141925DiVA: diva2:386591
Available from: 2011-01-12 Created: 2011-01-12 Last updated: 2011-03-11
In thesis
1. The Evolution of Sexually Homologous Ornaments: Selection via Male Mate Choice Coinciding with Male-Male Competition in a Neotropical Mosquito
Open this publication in new window or tab >>The Evolution of Sexually Homologous Ornaments: Selection via Male Mate Choice Coinciding with Male-Male Competition in a Neotropical Mosquito
2011 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The evolution of elaborate male ornaments via sexual selection is well-understood while the selective pressures acting on female ornaments remains unresolved. Female ornaments in species with strong sexual selection on the male homologue of the ornament were originally thought to result from an intersexual genetic correlation. My thesis explores the evolution of ornaments in females due to direct selection by developing theoretical models and examining the biology of a neotropical mosquito (Sabethes cyaneus) with sexually homologous ornaments coinciding with male-male competition.

I began by exploring the morphology of the ornaments in both sexes of S. cyaneus. Sexual dimorphism in the size and shape of the ornaments was slight and both male and female ornaments showed classic hallmarks of sexually selected traits. I then tested for direct selection on S. cyaneus male and female ornaments via mutual mate choice. I found evidence of male, but surprisingly not female, preferences for ornaments.

I then further considered the evolution of male mate choice in polygynous species. First, I investigated whether male investment in courtship by S. cyaneus may result in a lower operational sex ratio and thereby reduce the costs associated with male mate choice. Male courtship did pose a significant longevity cost to male S. cyaneus. Second, I explored the possibility that a female preference for male courtship effort may contribute to the benefits of male mate choice in a series of population genetic models. The spread of a male preference gene can be driven by female preferences for male courtship when males court preferred females more.

Finally, I found that female S. cyaneus are not benefitting from signalling to increase their mating rate as they are monandrous. My thesis therefore challenges standing sexual selection theory and suggests that sexual selection on females may be more widespread than previously thought.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2011. 52 p.
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214 ; 799
Keyword
sexual selection, Sabethes cyaneus, Diptera, Culicidae, mosquito, mutual ornamentation, sexual selection, mutual mate choice, male mate choice, female ornament, ecology, animal behaviour
National Category
Ecology
Research subject
Animal Ecology
Identifiers
urn:nbn:se:uu:diva-141936 (URN)978-91-554-7985-5 (ISBN)
Public defence
2011-02-25, Zootissalen, EBC, Villavägen 9, Uppsala, 09:30 (English)
Opponent
Supervisors
Note
Felaktigt tryckt som Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 729Available from: 2011-02-03 Created: 2011-01-12 Last updated: 2011-03-21Bibliographically approved

Open Access in DiVA

No full text

Authority records BETA

South, Sandra

Search in DiVA

By author/editor
South, Sandra
By organisation
Animal Ecology
Ecology

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 394 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf