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- W3093437048 endingPage "20200075" @default.
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- W3093437048 abstract "Males that exhibit alternative reproductive tactics (ARTs) often differ in the risk of sperm competition and the energetic trade-offs they experience. The resulting patterns of selection could lead to between-tactic differences in ejaculate traits. Despite extensive research on male ARTs, there is no comprehensive review of whether and what differences in sperm traits exist between male ARTs. We review existing theory on ejaculate evolution relevant to ARTs and then conduct a comprehensive vote-counting review of the empirical data comparing sperm traits between males adopting ARTs. Despite the general expectation that sneaker males should produce sperm that are more competitive (e.g. higher quality or performance), we find that existing theory does not predict explicitly how males adopting ARTs should differ in sperm traits. The majority of studies find no significant difference in sperm performance traits between dominant and sneaker males. However, when there is a difference, sneaker males tend to have higher sperm performance trait values than dominant males. We propose ways that future theoretical and empirical research can improve our understanding of the evolution of ejaculate traits in ARTs. We then highlight how studying ejaculate traits in species with ARTs will improve our broader knowledge of ejaculate evolution. This article is part of the theme issue 'Fifty years of sperm competition'." @default.
- W3093437048 created "2020-10-22" @default.
- W3093437048 creator A5021767725 @default.
- W3093437048 creator A5086739050 @default.
- W3093437048 date "2020-10-19" @default.
- W3093437048 modified "2023-10-09" @default.
- W3093437048 title "Sperm and alternative reproductive tactics: a review of existing theory and empirical data" @default.
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- W3093437048 doi "https://doi.org/10.1098/rstb.2020.0075" @default.
- W3093437048 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7661440" @default.
- W3093437048 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/33070732" @default.
- W3093437048 hasPublicationYear "2020" @default.
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