Effects of different male remating intervals on the reproductive success of Choristoneura rosaceana males and females

Marcotte, M.; Delisle, Johanne; McNeil, Jeremy N.

doi:10.1016/j.jinsphys.2006.11.005

Cited by 18 publications

(15 citation statements)

References 39 publications

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“…Male moths, Choristoneura rosaceana , transfer less refraction-inducing substance after recently mating than virgin males transfer, suggesting that these substances are costly [37]. Additional data on depletion rates of ejaculate components of known function would now be particularly useful to test whether ejaculate composition is best predicted by components costs versus function (Box 1).…”

Section: Condition and Statementioning

confidence: 99%

The seminal symphony: how to compose an ejaculate

Perry

Sirot

Wigby

2013

Trends in Ecology & Evolution

267

276

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Ejaculates are fundamental to fitness in sexually-reproducing animals: males gain all their direct fitness via the ejaculate and females require ejaculates to reproduce. Both sperm and non-sperm components of the ejaculate (including parasperm, seminal proteins, water and macromolecules) play vital roles in post-copulatory sexual selection and conflict, processes that can potentially drive rapid evolutionary change and reproductive isolation. Here, we assess the increasing evidence that considering ejaculate composition as a whole – and potential trade-offs among ejaculate components – has important consequences for predictions about male reproductive investment and female responses to ejaculates. We review current theory and empirical work, and detail how social and environmental effects on ejaculate composition have potentially far-reaching fitness consequences for both sexes.

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Section: Condition and Statementioning

confidence: 99%

The seminal symphony: how to compose an ejaculate

Perry

Sirot

Wigby

2013

Trends in Ecology & Evolution

267

276

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“…The expression of sperm and semen traits can impose non-trivial metabolic costs (e.g. Dewsbury, 1982;Olsson, Madsen, & Shine, 1997;Marcotte, Delisle, & McNeil, 2007;Perry & Tse, 2013;Lüpold et al, 2016;Godwin et al, 2017), resulting in the expectation that males in low condition should be less able to invest in sperm and semen traits compared to males in high condition. In other words, ejaculate traits may be expected to exhibit heightened condition dependence for the same reasons as other secondary sexual traits, such as ornaments and weaponry.…”

Section: Introductionmentioning

confidence: 99%

Effects of nutrient limitation on sperm and seminal fluid: a systematic review and meta‐analysis

et al. 2019

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Theory predicts that costly sexual traits should be reduced when individuals are in poor condition (i.e. traits should exhibit condition‐dependent expression). It is therefore widely expected that male ejaculate traits, such as sperm and seminal fluid, will exhibit reduced quantity and quality when dietary nutrients are limited. However, reported patterns of ejaculate condition dependence are highly variable, and there has been no comprehensive synthesis of underlying sources of such variation in condition‐dependent responses. In particular, it remains unclear whether all ejaculate traits are equally sensitive to nutrient intake, and whether such traits are particularly sensitive to certain dietary nutrients, respond more strongly to nutrients during specific life stages, or respond more strongly in some taxonomic groups. We systematically reviewed these potential sources of variation through a meta‐analysis across 50 species of arthropods and vertebrates (from 71 papers and 348 effect sizes). We found that overall, ejaculate traits are moderately reduced when dietary nutrients are limited, but we also detected substantial variation in responses. Seminal fluid quantity was strongly and consistently condition dependent, while sperm quantity was moderately condition dependent. By contrast, aspects of sperm quality (particularly sperm viability and morphology) were less consistently reduced under nutrient limitation. Ejaculate traits tended to respond in a condition‐dependent manner to a wide range of dietary manipulations, especially to caloric and protein restriction. Finally, while all major taxa for which sufficient data exist (i.e. arthropods, mammals, fish) showed condition dependence of ejaculate traits, we detected some taxonomic differences in the life stage that is most sensitive to nutrient limitation, and in the degree of condition dependence of specific ejaculate traits. Together, these biologically relevant factors accounted for nearly 20% of the total variance in ejaculate responses to nutrient limitation. Interestingly, body size showed considerably stronger condition‐dependent responses compared to ejaculate traits, suggesting that ejaculate trait expression may be strongly canalised to protect important reproductive functions, or that the cost of producing an ejaculate is relatively low. Taken together, our findings show that condition‐dependence of ejaculate traits is taxonomically widespread, but there are also many interesting, biologically relevant sources of variation that require further investigation. In particular, further research is needed to understand the differences in selective pressures that result in differential patterns of ejaculate condition dependence across taxa and ejaculate traits.

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“…In addition, mated females are expected to increase their fitness by adjusting the sex ratio of their offspring in response to environmental conditions (Charnov, 1982;Steiner & Ruther, 2009). However, their net reproductive gain from mating may depend largely on the mating history of the males they mate with (Marcotte et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Reproductive strategies of the larval parasitoid Microplitis croceipes

Makatiani

Bruce

Schulthess³

et al. 2013

Entomologia Exp Applicata

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Mate choice may have important consequences for offspring sex ratio and fitness of haplodiploid insects. Mate preference of females of the solitary larval parasitoid Microplitis croceipes (Cresson) (Hymenoptera: Braconidae) for virgin and mated males, and vice versa, and the reproductive consequences (i.e., the sex ratio expressed as the proportion of male offspring) were examined in choice and non-choice experiments. In addition, the effect of repeated rapid and daily copulation of an individual male on the sex ratio of offspring of the female mates was assessed. Males preferred virgins over mated females, whereas females copulated with a male irrespective of his mating status. In both the rapid and daily copulation assay, females copulating with a male that had copulated five times or more produced a higher sex ratio than females that had copulated with a virgin male. Females that copulated with virgin males once or twice produced a significantly and considerably lower sex ratio than females that first copulated with a sperm-depleted male followed by a virgin male. This indicates that copulating with a sperm-depleted male has costs and limits acquisition by the female of sperm from virgin males.

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Effects of different male remating intervals on the reproductive success of Choristoneura rosaceana males and females

Cited by 18 publications

References 39 publications

The seminal symphony: how to compose an ejaculate

The seminal symphony: how to compose an ejaculate

Effects of nutrient limitation on sperm and seminal fluid: a systematic review and meta‐analysis

Reproductive strategies of the larval parasitoid Microplitis croceipes

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