The effect of sire dominance and aggression on fitness measures in a field cricket (Gryllus assimilis)

Loranger, Michelle J.; Bertram, Susan M.

doi:10.1016/j.anbehav.2016.06.020

Cited by 6 publications

(10 citation statements)

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“…There was a non‐significant trend for smaller G. assimilis females to oviposit more eggs than larger females. This negative trend was unexpected, given previous studies revealed larger G. assimilis females are more fecund (e.g., Bertram & Rook, ; Bertram et al., ; Loranger & Bertram, ), a relationship found in almost all field crickets studied to date (e.g., G. bimaculatus : Bateman et al., ; G. texensis : Shoemaker, ; Teleogryllus oceanicus : Simmons & Garcia‐Gonzalez, ; G. integer : Hedrick & Kortet, ; G. assimilis : Bertram et al., ; Loranger & Bertram, ). Our suspicion is that larger G. assimilis females did, in fact, have higher “potential” for offspring production, but they did not allocate all their eggs according to their potential, as they were not allowed to perform free mate choice or mate multiply as they would have in the wild.…”

Section: Discussionmentioning

confidence: 75%

“…There was a non-significant trend for smaller G. assimilis females to oviposit more eggs than larger females. This negative trend was unexpected, given previous studies revealed larger G. assimilis females are more fecund (e.g., Bertram & Rook, 2012;Bertram et al, 2016;Loranger & Bertram, 2016b), a relationship found in almost all field crickets studied to date (e.g., G. bimaculatus: Bateman et al, 2001;G. texensis: Shoemaker, 2003;Teleogryllus oceanicus: Simmons & Garcia-Gonzalez, 2007;G.…”

Section: Modelmentioning

confidence: 75%

“…Benefits from increased egg number could mediate male mating preference evolution, as male crickets often preferentially court larger females when given the opportunity (Bateman & Fleming, ), and larger females often oviposit more eggs than smaller females (Bateman, Gilson, & Ferguson, ; Bertram et al., ; Bonduriansky, ; Hedrick & Kortet, ; Loranger & Bertram, ; Shoemaker, ; Simmons & Garcia‐Gonzalez, ). However, male mating preferences may be mediated by factors other than female body size (Susan M. Bertram, Michelle J. Loranger, Ian R. Thomson, Sarah J. Harrison, Genevieve L. Ferguson, Mykell L. Reifer, Deborah H. Corlett, & Patricia Adair Gowaty, submitted).…”

Section: Introductionmentioning

confidence: 99%

“…Benefits from increased egg number could mediate male mating preference evolution, as male crickets often preferentially court larger females when given the opportunity (Bateman & Fleming, 2006), and larger females often oviposit more eggs than smaller females (Bateman, Gilson, & Ferguson, 2001;Bertram et al, 2016;Bonduriansky, 2001;Hedrick & Kortet, 2012;Loranger & Bertram, 2016b;Shoemaker, 2003;Simmons & Garcia-Gonzalez, 2007). However, male mating prefer- Adair Gowaty, submitted).…”

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confidence: 99%

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What is driving male mate preference evolution in Jamaican field crickets?

et al. 2017

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Male mating preferences are often a neglected aspect of studies on sexual selection. Male mating preferences may evolve if they provide males with direct‐fitness benefits such as increased opportunity to fertilize more eggs or indirect‐fitness benefits such as enhanced offspring survival. We tested these ideas using Jamaican field crickets, Gryllus assimilis, previously shown to exhibit male mating preferences. We randomly mated males to either their preferred or non‐preferred potential mates and then asked whether mating treatment influenced egg oviposition or offspring viability. Preferred females were not significantly more fecund and did not produce more viable eggs or offspring than non‐preferred females. Male mate preferences were therefore inconsistent with both the direct‐ and indirect‐fitness benefits hypotheses under the conditions of our experiment. Our null results leave us with an open question about what is driving the evolution of mating preferences in male crickets. Future research should explore the whether the offspring of preferred females are more attractive, have stronger immune systems, and/or experience higher adult longevity.

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Section: Discussionmentioning

confidence: 75%

Section: Modelmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

“…Benefits from increased egg number could mediate male mating preference evolution, as male crickets often preferentially court larger females when given the opportunity (Bateman & Fleming, 2006), and larger females often oviposit more eggs than smaller females (Bateman, Gilson, & Ferguson, 2001;Bertram et al, 2016;Bonduriansky, 2001;Hedrick & Kortet, 2012;Loranger & Bertram, 2016b;Shoemaker, 2003;Simmons & Garcia-Gonzalez, 2007). However, male mating prefer- Adair Gowaty, submitted).…”

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confidence: 99%

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What is driving male mate preference evolution in Jamaican field crickets?

et al. 2017

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“…Third, large females may have larger auditory spiracles, enabling them to better locate males that are calling (Gwynne & Bailey, ). Fourth, because larger female crickets tend to be more fecund and therefore should be preferred as mates by males, they should encounter more males in their lifetime (Ah‐King & Gowaty, ; Bateman, Gilson, & Ferguson, ; Bertram et al, ; Bonduriansky, ; Gowaty & Hubbell, ; Loranger & Bertram, ). Greater male encounter rates would alter their demographic stochasticity and the fitness benefits they could accrue from mating, conditions favouring greater mate discrimination (Ah‐King & Gowaty, ; Gowaty & Hubbell, ).…”

Section: Discussionmentioning

confidence: 99%

Influence of the operational sex ratio on mutual mate choice in the Jamaican field cricket (Gryllus assimilis): Testing the predictions of the switch point theorem

2018

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The switch point theorem posits that both sexes should exhibit behavioural flexibility, switching between discriminant and indiscriminate mating, as their perceived demographic conditions change. The theorem also predicts that an individual’s mate choice should be more dependent on its own intrinsic characteristics and ecological conditions than on the exaggerated sexually selected traits possessed by potential mates. To test these predictions, we manipulated the operational sex ratio (OSR), a demographic factor, of adult Jamaican field crickets (Gryllus assimilis) under controlled laboratory conditions and evaluated whether the mate choices of females and males were influenced by their social environment, their own body size and the difference in the body size of available potential mates. Body size is under sexual selection in this species, with females preferring larger males and larger males exhibiting repeatable mate choice. We predicted that changes in the OSR should influence the mating behaviour of both sexes, as the OSR determines the probability that an individual will encounter a potential mate. We observed that the OSR affected the flexibility of male, but not female, mate choice. Additionally, the OSR influenced male behaviour, with larger males from the female‐biased OSR taking longer to make a choice than larger males in the male‐biased and even ratio OSR treatments. Mate choice in females was influenced by their intrinsic body size (only large females were choosy) and by the exaggerated traits expressed by potential mates (large females were only choosy when potential mates differed considerably in body size). Collectively, these findings provide partial support for the predictions of the switch point theorem as both sexes exhibited flexible mating decisions, switching from discriminant to indiscriminate mating under varying demographic conditions.

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Acoustic signalling in Orthoptera

Hall

Robinson

2021

Advances in Insect Physiology

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Acoustic communication is one of the most well-known behavioural traits of the Orthoptera. Orthopteran insects and the sounds they produce are both extremely diverse, and speciesspecific sounds are an extremely important tool in orthopteran taxonomy and systematics. For most species, acoustic signalling is the most important means of communication. It plays a vital role in mating, mate choice, intrasexual competition, interspecific interactions with predators and parasitoids, and the divergence of populations and species. The enormous diversity of the orthopterans has provided researchers with a wealth of model systems for studying anatomy, physiology, neurobiology, bioacoustics, communication, life-history traits, behaviour, evolutionary ecology, and speciation, all areas in which acoustic communication is important. We first reviewed orthopteran sound signalling nearly 20 years ago (Robinson and Hall, 2002), since when there has been an enormous amount of further work. This second review will look mainly at research published since that first review.

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The effect of sire dominance and aggression on fitness measures in a field cricket (Gryllus assimilis)

Cited by 6 publications

References 58 publications

What is driving male mate preference evolution in Jamaican field crickets?

What is driving male mate preference evolution in Jamaican field crickets?

Influence of the operational sex ratio on mutual mate choice in the Jamaican field cricket (Gryllus assimilis): Testing the predictions of the switch point theorem

Acoustic signalling in Orthoptera

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