Density-dependent male mating harassment, female resistance, and male mimicry

Gosden, Thomas P. and Svensson, Erik I. (2009) Density-dependent male mating harassment, female resistance, and male mimicry. American Naturalist, 173 6: 709-721. doi:10.1086/598491

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Author Gosden, Thomas P.
Svensson, Erik I.
Title Density-dependent male mating harassment, female resistance, and male mimicry
Journal name American Naturalist   Check publisher's open access policy
ISSN 0003-0147
Publication date 2009-06
Sub-type Article (original research)
DOI 10.1086/598491
Open Access Status File (Publisher version)
Volume 173
Issue 6
Start page 709
End page 721
Total pages 13
Place of publication Chicago, IL, United States
Publisher University of Chicago Press
Language eng
Formatted abstract
Genetic variation in female resistance and tolerance to male mating harassment can affect the outcome of sexually antagonistic mating interactions. We investigated female mating rates and male mating harassment in natural populations of a damselfly (Ischnura elegans). This damselfly species has a heritable sex-limited polymorphism in females, where one of the morphs is a male mimic (androchrome females). The three female morphs differ in mating rates, and these differences are stable across populations and years. However, the degree of premating resistance toward male mating attempts varied across generations and populations. Male mating harassment of the female morphs changed in a density-dependent fashion, suggesting that male mate preferences are plastic and vary with the different morph densities. We quantified morph differences in male mating harassment and female fecundity, using path analysis and structural equation modeling. We found variation between the morphs in the fitness consequences of mating, with the fecundity of one of the nonmimetic morphs declining with increasing male mating harassment. However, androchrome females had lower overall fecundity, presumably reflecting a cost of male mimicry. Densitydependent male mating harassment on the morphs and fecundity costs of male mimicry are thus likely to contribute to the maintenance of this female polymorphism.
Keyword Tolerance
Sexual conflict
Path analysis
Mating behavior
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Biological Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 53 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 56 times in Scopus Article | Citations
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Created: Wed, 09 Mar 2011, 13:16:14 EST