Differential effects of male nutrient balance on pre- and post-copulatory traits, and consequences for female reproduction in Drosophila melanogaster DOI Creative Commons
Juliano Morimoto, Stuart Wigby

Scientific Reports, Journal Year: 2016, Volume and Issue: 6(1)

Published: June 8, 2016

Abstract Male fitness depends on the expression of costly traits involved in obtaining mates (pre-copulatory) and fertilization (post-copulatory). However, very little is known about nutrient requirements for these whether males compromise their diet to maximize one trait at expense another. Here we used Nutritional Geometry investigate macronutrient pre- post-copulatory Drosophila , when were first or second mate with females. We found no significant effects male sperm competitiveness. although self-regulate intake a protein-to-carbohydrate ratio (“P:C ratio”) 1:1.5, this does not coincide optima several key reproductive traits: both short-term (~24 hr) rate offspring production after female’s mating, as well total number sired maximized P:C 1:9, whereas attractiveness (latency mate), maximised 1:1. These results suggest compromised optimum diet, single that simultaneously maximizes all traits. The protein also negatively affected female following remating, suggesting long-term intersexual effect nutrition.

Language: Английский

Sexual Selection in Complex Environments DOI
Christine W. Miller, Erik Svensson

Annual Review of Entomology, Journal Year: 2013, Volume and Issue: 59(1), P. 427 - 445

Published: Oct. 25, 2013

Sexual selection has resulted in some of the most captivating features insects, including flashy colors, bizarre structures, and complex pheromones. These evolve dynamic environments, where conditions can change rapidly over space time. However, only recently ecological complexity been embraced by theory practice sexual selection. We review replicated studies as well on variation agents to delineate gaps current knowledge clarify exciting new directions for research. Existing work suggests that fluctuations may be extremely common, though factors influencing these is scarce. suggest deeper perspectives alter fundamental assumptions lead discoveries.

Language: Английский

Citations

209
Sexual selection in females and the evolution of polyandry DOI Creative Commons
Salomé Fromonteil, Lucas Marie-Orleach, Lennart Winkler

et al.

PLoS Biology, Journal Year: 2023, Volume and Issue: 21(1), P. e3001916 - e3001916

Published: Jan. 10, 2023

Over the last decades, field of sexual selection underwent a paradigm shift from sexual-stereotype thinking “eager” males and “coy” females towards more nuanced perspective acknowledging that not only but also can benefit multiple mating compete for partners. Yet, in is still considered peculiarity, evolution polyandry often viewed to result higher interest males. Here, we present meta-analytic evidence 77 species across broad range animal taxa demonstrate female reproductive success overall positively correlated with success, suggesting typically mating. Importantly, found these fitness gains likely promote polyandry. Our findings offer support idea widespread play key role systems. Thereby, our results extend understanding evolutionary consequences reproduction contribute balanced view how operates females.

Language: Английский

Citations

42
Female competition and aggression: interdisciplinary perspectives DOI Open Access
Paula Stockley,

Anne Campbell

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2013, Volume and Issue: 368(1631), P. 20130073 - 20130073

Published: Oct. 29, 2013

This paper introduces a Theme Issue combining interdisciplinary perspectives in the study of female competition and aggression. Despite history being largely overlooked, evidence is now accumulating for widespread evolutionary significance competition. Here, we provide synthesis contributions to this on humans other vertebrates, highlight directions future research. Females compete resources needed survive reproduce, preferred mates. Although aggression takes diverse forms, under most circumstances relatively low-risk competitive strategies are favoured, probably due constraints offspring production care. In social species, dominance relationships threats punishment can resolve conflict without resort direct aggression, coalitions or alliances may reduce risk retaliation. Consistent with these trends, indirect low cost but effective form among young women. Costs also minimized by flexibility expression traits, aggressive behaviour signalling tailored ecological conditions. Future research proximate mediators will be greatly enhanced opportunities exchange, as evidenced Issue.

Language: Английский

Citations

191
Sexual selection and the evolution of sperm quality DOI Open Access
John L. Fitzpatrick, Stefan Lüpold

Molecular Human Reproduction, Journal Year: 2014, Volume and Issue: 20(12), P. 1180 - 1189

Published: Oct. 16, 2014

Sperm experience intense and varied selection that dramatically impacts the evolution of sperm quality. Selection acts to ensure are fertilization-competent able overcome many challenges experienced on their way towards eggs. However, simply being fertilize an egg is not enough male fertility in most species. Owing prevalence female multiple mating throughout animal kingdom, successful fertilization requires outcompete rival sperm. In addition, females can actively influence quality, storage or utilization fertility. This review provides overview how these selective forces After exploring link between traits fertility, we examine post-mating competition ejaculates influences We then describe complex genetic, social sexual interactions focusing importance seminal fluid female's reproductive tract. light complexities traits, greater use multivariate approaches incorporate male–male, sperm–sperm sperm–female study quality will enhance our understanding factors influencing Because metric success—fertilization—is same across argue information about gained from non-human animals has enormous potential further impact human

Language: Английский

Citations

185
Sexual selection and its evolutionary consequences in female animals DOI
Robin M. Hare, Leigh W. Simmons

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2018, Volume and Issue: 94(3), P. 929 - 956

Published: Nov. 28, 2018

ABSTRACT For sexual selection to act on a given sex, there must exist variation in the reproductive success of that sex as result differential access mates or fertilisations. The mechanisms and consequences acting male animals are well documented, but research females has only recently received attention. Controversy still exists over whether acts traditional sense, modify existing definition (to include resource competition) invoke alternative (usually social selection) explain connection with reproduction. However, substantial evidence bearing characters exhibiting behaviours analogous those attributed males. Here we summarise literature provide female intrasexual competition for mates, intersexual signalling potential postcopulatory such between eggs sperm cryptic allocation. Our review makes clear males similar ways sometimes differing extents: ceiling elaboration costly traits may be lower than We predict current future will increasing support parsimony utility selection.

Language: Английский

Citations

149
Evolutionary Trade-Off between Secondary Sexual Traits and Ejaculates DOI
Leigh W. Simmons, Stefan Lüpold, John L. Fitzpatrick

et al.

Trends in Ecology & Evolution, Journal Year: 2017, Volume and Issue: 32(12), P. 964 - 976

Published: Oct. 16, 2017

Language: Английский

Citations

144
Female monopolization mediates the relationship between pre- and postcopulatory sexual traits DOI Open Access
Stefan Lüpold, Joseph L. Tomkins, Leigh W. Simmons

et al.

Nature Communications, Journal Year: 2014, Volume and Issue: 5(1)

Published: Jan. 23, 2014

Language: Английский

Citations

138
The polyandry revolution DOI Open Access
Tommaso Pizzari, Nina Wedell

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2013, Volume and Issue: 368(1613), P. 20120041 - 20120041

Published: Jan. 22, 2013

Language: Английский

Citations

128
The total opportunity for sexual selection and the integration of pre‐ and post‐mating episodes of sexual selection in a complex world DOI Open Access
Jonathan P. Evans, Francisco García‐González

Journal of Evolutionary Biology, Journal Year: 2016, Volume and Issue: 29(12), P. 2338 - 2361

Published: Aug. 13, 2016

It is well known that sexual selection can target reproductive traits during successive pre- and post-mating episodes of selection. A key focus recent studies has been to understand quantify how these interact determine overall variance in success. In this article, we review empirical developments field but also highlight the considerable variability patterns selection, attributable variation resource acquisition allocation, ecological social factors, genotype-by-environment interaction possible methodological factors might obscure such patterns. Our aim (co)variances sexually selected be sensitive changes a range environmental variables. We argue failure capture when quantifying opportunity for may lead erroneous conclusions about strength, direction or form operating on traits. Overall, advocate approaches combine measures across contrasting gradients better dynamics polyandrous species. discuss some directions future research area.

Language: Английский

Citations

120
Why do some animals mate with one partner rather than many? A review of causes and consequences of monogamy DOI Creative Commons
Charlotta Kvarnemo

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2018, Volume and Issue: 93(4), P. 1795 - 1812

Published: April 23, 2018

ABSTRACT Why do some animals mate with one partner rather than many? Here, I investigate factors related to ( i ) spatial constraints (habitat limitation, availability), ii time (breeding synchrony, length of breeding season), iii need for parental care, and iv genetic compatibility, see what support can be found in different taxa regarding the importance these explaining occurrence monogamy, whether shown by sex (monogyny or monandry) both sexes (mutual monogamy). Focusing on reproductive social monogamy whenever possible, review empirical literature birds, mammals fishes, occasional examples from other taxa. Each explain mating patterns taxa, but not all. In general, there is mixed how well listed above predict monogamy. The factor that shows greatest across habitat limitation. By contrast, while a care might freshwater fishes clear evidence this case marine mammals. Hence, does appear have single overriding explanation, more taxon specific. Genetic compatibility promising avenue future work likely improve our understanding patterns. also discuss eight important consequences monogamy: parentage, eusociality altruism, infanticide, v effective population size, vi choice before mating, vii sexual selection, viii conflict. Of these, infanticide been subject debate, briefly summarised herein. A common expectation leads little conflict no selection. However, as reviewed here, selection substantial under mutual such Under long‐term quality obviously numbers, which turn affects pre‐mating choice. Overall, conclude that, despite much research patterns, still surprisingly poorly understood further experimental comparative needed. This identifies several areas data proposes new hypotheses test.

Language: Английский

Citations

86