Male condition influences female post mating aggression and feeding in <i>Drosophila</i>

Bath, Eleanor, Buzzoni, Daisy, Ralph, Toby, Wigby, Stuart ORCID: 0000-0002-2260-2948 and Sepil, Irem
(2021) Male condition influences female post mating aggression and feeding in <i>Drosophila</i>. FUNCTIONAL ECOLOGY, 35 (6). pp. 1288-1298.

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<jats:title>Abstract</jats:title><jats:p> <jats:list> <jats:list-item><jats:p>Mating changes female behaviour and physiology across a wide range of taxa, with important effects for male and female fitness. These changes are often induced by components of the male ejaculate, such as sperm and seminal fluid proteins.</jats:p></jats:list-item> <jats:list-item><jats:p>However, males can vary significantly in their ejaculates, due to factors such as age, mating history or nutritional status. This male variation may therefore lead to variation in the strength of responses males can stimulate in females, with alterations in fitness outcomes for both sexes.</jats:p></jats:list-item> <jats:list-item><jats:p>Using the fruit fly, <jats:italic>Drosophila melanogaster</jats:italic>, we tested whether three aspects of male condition shape an important, but understudied, post‐mating response—increased female–female aggression.</jats:p></jats:list-item> <jats:list-item><jats:p>We found that females mated to old males fought less than females mated to young males. This effect was exacerbated in mates of old, sexually active males, but there was no effect of male starvation status on mating‐induced female aggression. There was also a significant effect of age and mating history on female post‐mating feeding duration.</jats:p></jats:list-item> <jats:list-item><jats:p>Our results add to a growing body of literature that variation in male condition can shape sexual selection through post‐mating responses in females, including female–female interactions. Studying such variation may therefore be useful for understanding how the condition of one sex affects the behaviour of the other.</jats:p></jats:list-item> </jats:list> </jats:p><jats:p>A free <jats:ext-link xmlns:xlink="" xlink:href="">plain language summary</jats:ext-link> can be found within the Supporting Information of this article.</jats:p>

Item Type: Article
Uncontrolled Keywords: ageing, aggression, Drosophila melanogaster, female-female competition, seminal fluid, sexual selection, sperm
Divisions: Faculty of Health and Life Sciences
Faculty of Health and Life Sciences > Institute of Infection, Veterinary and Ecological Sciences
Depositing User: Symplectic Admin
Date Deposited: 07 Apr 2021 10:15
Last Modified: 19 Oct 2023 08:42
DOI: 10.1111/1365-2435.13791
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