The causes and implications of sex role diversity in shorebird breeding systems

Ibis, Journal Year: 2023, Volume and Issue: 166(2), P. 357 - 385

Published: Oct. 11, 2023

Males and females often exhibit different behaviours during mate acquisition, pair‐bonding parenting, a convenient label to characterize these is sex role. The diverse roles that male female shorebirds (plovers, sandpipers allies) in mating parenting have played key role advancing mainstream theories avian ecology behavioural biology including sexual selection, conflict parental cooperation. Recent advances shorebird research also highlighted the significance of social environment driving by linking adult ratio with breeding behaviour population demography. Here we review using as an ecological model system. We identify knowledge gaps argue untapped potential accelerate fields evolutionary genomics, movement ecology, networks environmental changes. Future studies will benefit from individual‐based monitoring advanced tracking technologies, multi‐team collaborations are facilitated standardized data collection methodologies across species field. These not only contribute our understanding reproductive strategies, but they knock‐on effects on predicting resilience changes prioritizing for conservation.

Language: Английский

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The 150th anniversary ofThe Descent of Man: Darwin and the impact of sex-role reversal on sexual selection research

Biological Journal of the Linnean Society, Journal Year: 2021, Volume and Issue: 134(3), P. 525 - 540

Published: June 10, 2021

Abstract The year 2021 marks the 150th anniversary of publication Charles Darwin’s extraordinary book Descent Man and Selection in Relation to Sex. Here, we review history impact a single profound insight from Man: that, some few species, females rather than males compete for access mates. In other words, these species are ‘sex-role reversed’ with respect mating competition sexual selection compared majority which acts most strongly on males. Over subsequent 150 years, sex-role-reversed have motivated multiple key conceptual breakthroughs selection. surprising dynamics such challenged scientists’ preconceptions, forcing them examine implicit assumptions stereotypes. This wider worldview has led richer more nuanced understanding animal systems and, particular, proper appreciation fundamental role that play shaping systems. Sex-role-reversed considerable untapped potential will continue contribute research decades come.

Language: Английский

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Relationship between hatching success, nest location and egg traits in Kentish plovers Anarhynchus alexandrinus breeding in an oasis wetland in the Sahara Desert, Algeria

The European Zoological Journal, Journal Year: 2025, Volume and Issue: 92(1), P. 420 - 433

Published: Feb. 26, 2025

Language: Английский

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Annual Patterns of Shorebird Migration and Habitat Use at the Gochang Tidal Flat: Insights from 10 Selected Shorebird Species

Waterbirds, Journal Year: 2025, Volume and Issue: 47(3)

Published: March 6, 2025

Language: Английский

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Role-reversed polyandry is associated with faster fast-Z in shorebirds

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 291(2024)

Published: June 1, 2024

In birds, males are homogametic and carry two copies of the Z chromosome (‘ZZ’), while females heterogametic exhibit a ‘ZW’ genotype. The evolves at faster rate than similarly sized autosomes, phenomenon termed ‘fast-Z evolution’. This is thought to be caused by independent processes—greater genetic drift owing reduced effective population size, stronger positive selection exposure partially recessive alleles selection. Here, we investigate relative contributions these processes considering effect role-reversed polyandry on fast-Z in shorebirds, paraphyletic group wading birds that unusually diverse mating systems. We find effects under polyandry, which consistent with particularly strong polyandrous driving fixation beneficial alleles. result contrasts previous research has tended implicate primary role variation. suggest this discrepancy can interpreted ways—stronger sexual acting overwhelms an otherwise central drift, and/or antagonism also contributing significantly exacerbated sexually dimorphic species.

Language: Английский

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Successful breeding predicts divorce in plovers

Scientific Reports, Journal Year: 2020, Volume and Issue: 10(1)

Published: Sept. 23, 2020

Abstract When individuals breed more than once, parents are faced with the choice of whether to re-mate their old partner or divorce and select a new mate. Evolutionary theory predicts that, following successful reproduction given partner, that should be retained for future reproduction. However, recent work in polygamous bird, has instead indicated divorced often failed breeders (Halimubieke et al. Ecol Evol 9:10734–10745, 2019), because one parent can benefit by mating reproducing shortly after divorce. Here we investigate breeding using data from 14 well-monitored populations plovers ( Charadrius spp.). We show nesting leads divorce, whereas nest failure retention mate follow-up breeding. Plovers partners simultaneously deserted broods produced offspring within season Our provides counterpoint theoretical expectations is triggered low reproductive success, supports adaptive explanations as strategy improve individual success. In addition, temperature may modulate these costs benefits, contribute dynamic variation patterns across plover systems.

Language: Английский

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Mate fidelity in a polygamous shorebird, the snowy plover ( Charadrius nivosus )

Ecology and Evolution, Journal Year: 2019, Volume and Issue: 9(18), P. 10734 - 10745

Published: Sept. 1, 2019

Social monogamy has evolved multiple times and is particularly common in birds. However, it not well understood why some species live long-lasting monogamous partnerships while others change mates between breeding attempts. Here, we investigate mate fidelity a sequential polygamous shorebird, the snowy plover (Charadrius nivosus), which both males females may have several attempts within season with same or different mates. Using 6 years of data from well-monitored population Bahía de Ceuta, Mexico, investigated predictors fitness implications years. We show that order to maximize reproductive success season, individuals divorce after successful nesting re-mate partner nest failure. Therefore, divorced plovers, counterintuitively, achieve higher than retain their mate. also mating decisions sexes predict dispersal patterns. Taken together, our findings imply an adaptive strategy improve stochastic environment. Understanding important for evolution polygamy, these behaviors productivity.

Language: Английский

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The allocation between egg size and clutch size depends on local nest survival rate in a mean of bet-hedging in a shorebird

Avian Research, Journal Year: 2020, Volume and Issue: 11(1)

Published: Oct. 23, 2020

Abstract Background The allocation of resources between offspring size and number is a central question life-history theory. Although several studies have tested the existence this trade-off, few investigated how environmental variation influences to number. Additionally, relationship population dynamics far less understood. Methods We investigate whether resource egg clutch influenced by ambient temperature it may be related apparent nest survival rate. measured 1548 eggs from 541 nests two closely shorebird species, Kentish Plover ( Charadrius alexandrinus ) White-faced C. dealbatus in China, four populations that exhibit contrasting environments. weighed females, monitored survival, calculated variance temperature. Results we found were all different breeding populations, reproductive investment (i.e. total volume) was similar populations. also with high rate had relatively larger smaller than low latter result line conservative/diversified bet-hedging strategy. Conclusions Our findings suggest plovers increasing fitness investing fewer, or many, small according local make reproduction, thereby an impact on demography.

Language: Английский

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Evolution of Social Organization: Phylogenetic Analyses of Ecology and Sexual Selection in Weavers

The American Naturalist, Journal Year: 2022, Volume and Issue: 200(2), P. 250 - 263

Published: April 1, 2022

AbstractCrook published a landmark study on the social organization of weavers (or weaverbirds, family Ploceidae) that contributed to emergence sociobiology, behavioral ecology, and phylogenetic comparative methods. By comparing spatial distribution, mating systems, Crook suggested distribution food resources breeding habitats influence weaver aggregation during both nonbreeding season (flocking vs. solitary foraging) (colonial breeding), latter in turn impacts systems sexual selection. Although Crook's stimulated much follow-up research, his conclusions have not been scrutinized using phylogenetically controlled analyses. We revisited hypotheses modern methods an extended data set 107 species. showed diet habitat type are associated with predicts system, consistent propositions. The best-supported path model also supported arguments uncovered direct relationship between system. Taken together, our corrected analyses confirm conjectures roles ecology organizations weavers; however, association distributions which was envisaged by Crook.

Language: Английский

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The impact of social structure on breeding strategies in an island bird

Scientific Reports, Journal Year: 2020, Volume and Issue: 10(1)

Published: Aug. 17, 2020

The social environment is a key factor determining fitness by influencing multiple stages of reproduction, including pair formation, mating behavior and parenting. However, the influence structure across different aspects breeding rarely examined simultaneously in wild populations. We therefore lack consolidation mechanisms which sociality impacts reproduction. Here we investigate implications before during on reproduction an island population ground nesting shorebird, Kentish plover (Charadrius alexandrinus). utilise information decisions, nest locations success years combination with network analysis. Sociality was connected patterns formation. In addition, site fidelity personal experience associated spatial organisation pairs. Our results provide evidence that, while differential interactions at localised scales reproductive pairing, populations landscape scale. underline tight link between mating, revealing that relative sociality, local ecology are dynamic facets

Language: Английский

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