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Does sexual experience affect the strength of male mate choice for high‐quality females in Drosophila melanogaster ?
Author(s) -
Sinclair Chelsea S.,
Lisa Suriya F.,
Pischedda Alison
Publication year - 2021
Publication title -
ecology and evolution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.17
H-Index - 63
ISSN - 2045-7758
DOI - 10.1002/ece3.8334
Subject(s) - courtship , mate choice , mating , biology , fecundity , drosophila melanogaster , sexual selection , mating preferences , affect (linguistics) , preference , zoology , courtship display , melanogaster , demography , psychology , population , communication , genetics , gene , sociology , microeconomics , economics
Although females are traditionally thought of as the choosy sex, there is increasing evidence in many species that males will preferentially court or mate with certain females over others when given a choice. In the fruit fly, Drosophila melanogaster , males discriminate between potential mating partners based on a number of female traits, including species, mating history, age, and condition. Interestingly, many of these male preferences are affected by the male's previous sexual experiences, such that males increase courtship toward types of females that they have previously mated with and decrease courtship toward types of females that have previously rejected them. D .  melanogaster males also show courtship and mating preferences for larger females over smaller females, likely because larger females have higher fecundity. It is unknown, however, whether this preference shows behavioral plasticity based on the male's sexual history as we see for other male preferences. Here, we manipulate the sexual experience of D .  melanogaster males and test whether this manipulation has any effect on the strength of male mate choice for large females. We find that sexually inexperienced males have a robust courtship preference for large females that is unaffected by previous experience mating with, or being rejected by, females of differing sizes. Given that female body size is one of the most common targets of male mate choice across insect species, our experiments with D .  melanogaster may provide insight into how these preferences develop and evolve.

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