2019
DOI: 10.1093/beheco/arz140
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Flexible polyandry in female flies is an adaptive response to infertile males

Abstract: Infertility is common in nature despite its obvious cost to individual fitness. Rising global temperatures are predicted to decrease fertility, and male sterility is frequently used in attempts to regulate pest or disease vector populations. When males are infertile, females may mate with multiple males to ensure fertilization, and changes in female mating behavior in turn could intensify selection on male fertility. Fertility assurance is a potentially wide-spread explanation for polyandry, but whether and ho… Show more

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Cited by 34 publications
(28 citation statements)
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“…Females that mate with males better able to buffer their development against thermal stress will have enhanced fertility themselves. This process could be further augmented by the fact that males experiencing thermal stress during development are less likely to mate with females (Vasudeva et al ., 2018; Iossa et al ., 2019; Sutter et al ., 2019) and, if they do, are more likely to lose out in terms of sperm competition (Vasudeva et al ., 2014). However, this scenario ignores the impact of thermal stress on female reproductive form and function (Iossa, 2019).…”
Section: Discussionmentioning
confidence: 99%
“…Females that mate with males better able to buffer their development against thermal stress will have enhanced fertility themselves. This process could be further augmented by the fact that males experiencing thermal stress during development are less likely to mate with females (Vasudeva et al ., 2018; Iossa et al ., 2019; Sutter et al ., 2019) and, if they do, are more likely to lose out in terms of sperm competition (Vasudeva et al ., 2014). However, this scenario ignores the impact of thermal stress on female reproductive form and function (Iossa, 2019).…”
Section: Discussionmentioning
confidence: 99%
“…Sterilisation of mated females could be particularly devastating to species with low remating rates. However, females can use facultative polyandry to improve offspring production when mating with sub-fertile males (Sutter et al, 2019; Vasudeva et al, 2021). For example, heat-shocked males of the flour beetle Tribolium castaneum have low numbers of viable sperm after heat-stress (Vasudeva et al, 2021).…”
Section: Discussionmentioning
confidence: 99%
“…In addition, developmental heat stress may have negative or positive carry over effects on adult reproductive fitness during high temperatures (Porcelli et al, 2017) or trans-generational effects (Walzer et al, 2020). Finally, remating of both males and females could mitigate such impacts (Sutter et al, 2019;Vasudeva et al, 2021).…”
Section: Ta B L Ementioning
confidence: 99%