Ageing and the evolution of female resistance to remating in seed beetles

Maklakov, Alexei A.; Kremer, Natacha; Arnqvist, Göran

doi:10.1098/rsbl.2005.0398

Cited by 17 publications

(22 citation statements)

References 30 publications

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“…This assumption may require some defending, given that there is ample evidence that females can become unreceptive after a mating (e.g., Teuschl & Blanckenhorn, 2007), or adjust their choosiness depending on their age (Moore & Moore, 2001;Maklakov et al, 2006) or mating history (e.g., Pitcher et al, 2003;Fitze et al, 2010; for theory see Kokko & Mappes, 2005;Bleu et al, 2012). To keep the model as close to a 'null' as possible, we assumed no plastic behaviour based on mating history or their own past frequency of mate encounters.…”

Section: Discussionmentioning

confidence: 99%

Multiple mating by females is a natural outcome of a null model of mate encounters

Kokko

Mappes

2012

Entomologia Exp Applicata

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Why do females of so many species mate multiply? The question makes use of an implicit null model that females by default should be monandrous and that polyandry requires an explanation. Here, we make the simple point that females encounter mates over their lifetime in a stochastic manner, and as they should accept at least one male, acceptance of all males may be a better null model than the more advanced strategy of accepting the first satisfactory one and rejecting all others. The advantage of this view is that it makes it explicit that females must accept and reject mates without precise knowledge of future mate encounters. In insects, for example, limitations of cognitive and sensory capabilities make it hard for females to compare many potential mates simultaneously. It is then not always possible for a female to be very choosy (i.e., to reject a large proportion of encounters) without simultaneously increasing the expected time spent as a virgin and decreasing the overall expected number of mates she accrues during her lifetime. We show that this fact easily leads to a pattern where choosiness is reduced and most females mate with more males than their optimal mate number. Our results suggest that monandry and polyandry may be less distinct strategies than they first appear as they may, to a large extent, reflect chance events influencing mate encounters. Polyandry can arise as a side effect of avoiding the risk of encountering too few acceptable matesa viewpoint that is easily missed if females that have remained unmated are not included in datasets.

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Section: Discussionmentioning

confidence: 99%

Multiple mating by females is a natural outcome of a null model of mate encounters

Kokko

Mappes

2012

Entomologia Exp Applicata

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“…However, we do not know if (i) older females had intrinsic characteristics that make them less receptive with age, (ii) older females have lower thresholds to resist male manipulation, or (iii) males invest more in inhibiting remating of older females. Maklakov et al (2006) demonstrated that females of the seed beetle Acanthoscelides obtectus selected for early reproduction had increased remating rates as they aged, while females selected for late reproduction had decreased remating rates later in life. In A. fraterculus, females with higher fecundity also have higher remating rates while those with lower fecundity have lower remating rates (Abraham et al 2011).…”

Section: Female Remating Behaviormentioning

confidence: 98%

Female Age Determines Remating Behavior in Wild Mexican Fruit Flies

2016

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Male and female age are important factors that can influence mating and remating behavior. Females can discriminate against or prefer older males, but there have been relatively fewer studies on how female and male age influence female remating. Here we showed in wild flies of the Mexican fruit fly Anastrepha ludens (Loew), that when females were given a choice between males of different ages, younger females preferred to mate with younger males over older males, while older females were less selective. Also, when given a choice between males of different ages, older females had longer copulation durations than younger females. On the other hand, older males and females had lower mating success, compared with young and middleaged flies under no choice conditions. However, middle-aged females mated faster compared to young females and young males mated faster compared to middle-aged males. Male age did not influence female remating, while female age strongly determined female remating, with no females remating when they were old. It is unclear if female receptivity mechanisms are switched off at older ages, or if females are reluctant to remate due to possible costs of mating. We discuss our results in terms of how male and female age can influence mating decisions.

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“…We also found that the reproductive behavior of females and males was changed in the E and L populations. Early‐life mating frequencies and mating speed of both sexes, as well as females’ re‐mating rates, were substantially higher in the late‐reproducing populations rather than in the early‐reproducing populations (Maklakov et al. 2006; Šešlija et al.…”

Section: Introductionmentioning

confidence: 98%

Sexual Activity and Reproductive Isolation Between Age-specific Selected Populations of Seed Beetle

Stojković

Jovanović²,

Perovanović

et al. 2011

Ethology

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We evaluated the degree of reproductive isolation between laboratory populations of the seed beetle (Acanthoscelides obtectus) selected to reproduce early (E) or late (L) in life, where different levels of sexual activity and sexual discrimination have been detected. We found a significant level of behavioral isolation among populations within the E selection regime in which beetles showed enhanced early‐life fitness traits and low sexual activity. In contrast, substantially higher levels of sexual activity and an indiscriminate mating system inhibited rather than promoted pre‐zygotic isolation between the L populations. Our results indicate that the study of sexual activity levels may be crucial for understanding the first steps in the pre‐zygotic isolation among allopatric populations subjected to uniform selection.

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Ageing and the evolution of female resistance to remating in seed beetles

Cited by 17 publications

References 30 publications

Multiple mating by females is a natural outcome of a null model of mate encounters

Multiple mating by females is a natural outcome of a null model of mate encounters

Female Age Determines Remating Behavior in Wild Mexican Fruit Flies

Sexual Activity and Reproductive Isolation Between Age-specific Selected Populations of Seed Beetle

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