Birds from matched developmental environments breed faster

Eyck, Harrison J. F.; Crino, Ondi L.; Kraft, Fanny-Linn H.; Jessop, Tim S.; Buchanan, Katherine L.

doi:10.1007/s00265-020-2798-1

Cited by 6 publications

(5 citation statements)

References 58 publications

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“…Habitat quality early in life (i.e., 'developmental environment quality') can determine the fitness of individuals in the current (direct) and next generations (indirect), thereby regulating physiological and behavioural responses as well as population dynamics and evolution (Mousseau and Fox 1998;Wolf et al 1998). Studies in both invertebrate and vertebrate species have shown that the quality of the developmental environment can influence fitness traits in adulthood [e.g., (Booth and Wellington 1998;Stevens et al 1999Stevens et al , 2000Steigenga and Fischer 2009;Spencer et al 2010;May et al 2015;Stefana et al 2017;Eyck et al 2020)], canalising individuals into strategies that in turn affect population dynamics (Booth 1995;Lindström 1999;Gaillard et al 2000;Monaghan 2008).…”

Section: Introductionmentioning

confidence: 99%

Density-by-Diet Interactions during Larval Development Shape Adult Life History Trait Expression and Fitness in a Polyphagous Fly

Morimoto

Than

Nguyen

et al. 2022

The American Naturalist

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Habitat quality early in life determines individual fitness, with possible long-term evolutionary effects on groups and populations. In holometabolous insects, larval ecology plays a major role in determining the expression of traits in adulthood, but how ecological conditions during larval stage interact to shape adult life-history and fitness, particularly in non-model organisms, remains subject to scrutiny. Consequently, our knowledge of the interactive effects of ecological factors on insect development is limited. Here, using the polyphagous fly Bactrocera tryoni, we conducted a fullyfactorial design where we manipulated larval density and larval diet (protein-rich, standard, and sugar-rich) to gain insights into how these ecological factors interact to modulate adult fitness. As expected, a protein-rich diet resulted in faster larval development, heavier and leaner adults that were more fecund compared with standard and sugar-rich diets, irrespective of larval density. Females from the protein-rich larval diet had overall higher reproductive rate (i.e., eggs per day) than females from other diets, and reproductive rate decreased linearly with density for females from the proteinrich but non-linearly for females from the standard and sugar-rich diets over time. Surprisingly, adult lipid reserve increased with larval density for adults from the sugar-rich diet (as opposed to decreasing, as in other diets), possibly due to a stress-response to an extremely adverse condition during development (i.e., high intraspecific competition and poor nutrition). Together, our results provide insights into how ecological factors early in life interact and shape the fate of individuals through life-stages in holometabolous insects.

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Section: Introductionmentioning

confidence: 99%

Density-by-Diet Interactions during Larval Development Shape Adult Life History Trait Expression and Fitness in a Polyphagous Fly

Morimoto

Than

Nguyen

et al. 2022

The American Naturalist

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“…To ensure that we were reliably testing the effect of treatment group on embryonic and vitelline blood vessel DNA methylation, we included additional variables within the models that have previously been indicated in contributing to maternal CORT and/or DNA methylation differences. These variables included clutch size (Lindner et al., 2021; Sheldon, Schrey, Ragsdale, & Griffith, 2018), clutch number (first or second clutch laid, independent of treatment group; Romero & Wingfield, 2016), maternal condition (Nager et al., 1999; Newbrey & Reed, 2009; here as scaled mass index, calculated as in Peig & Green, 2009), egg mass (Henriksen et al., 2011), and lay latency (Eyck et al., 2020; Schoech et al., 2009). Egg number was included in the models to eliminate the potential carry‐over effect of CORT dosing or DNA methylation (i.e., an increase or decrease with lay order).…”

Section: Methodsmentioning

confidence: 99%

Maternally derived avian corticosterone affects offspring genome‐wide DNA methylation in a passerine species

Miltiadous,

Callahan,

Dujon

et al. 2024

Molecular Ecology

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Avian embryos develop in an egg composition which reflects both maternal condition and the recent environment of their mother. In birds, yolk corticosterone (CORT) influences development by impacting pre‐ and postnatal growth, as well as nestling stress responses and development. One possible mechanism through which maternal CORT may affect offspring development is via changes to offspring DNA methylation. We sought to investigate this, for the first time in birds, by quantifying the impact of manipulations to maternal CORT on offspring DNA methylation. We non‐invasively manipulated plasma CORT concentrations of egg‐laying female zebra finches (Taeniopygia castanotis) with an acute dose of CORT administered around the time of ovulation and collected their eggs. We then assessed DNA methylation in the resulting embryonic tissue and in their associated vitelline membrane blood vessels, during early development (5 days after lay), using two established methods – liquid chromatography–mass spectrometry (LC–MS) and methylation‐sensitive amplification fragment length polymorphism (MS‐AFLP). LC–MS analysis showed that global DNA methylation was lower in embryos from CORT‐treated mothers, compared to control embryos. In contrast, blood vessel DNA from eggs from CORT‐treated mothers showed global methylation increases, compared to control samples. There was a higher proportion of global DNA methylation in the embryonic DNA of second clutches, compared to first clutches. Locus‐specific analyses using MS‐AFLP did not reveal a treatment effect. Our results indicate that an acute elevation of maternal CORT around ovulation impacts DNA methylation patterns in their offspring. This could provide a mechanistic understanding of how a mother's experience can affect her offspring's phenotype.

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“…First, it may reflect phenotypic interactions between mating individuals. For example, behavioural phenotypes can affect 'social compatibility' [50,184], mitigating intra-pair aggression [185] or aiding behaviours such as foraging, parenting [50,182,186] and conjugation [187,188]. As pair-bonding monogamists engaging in biparental care [189], humans are candidates for social compatibility [13,50], and there is some evidence that social similarity improves cooperation [71] and relationship satisfaction in mated pairs [46,117,190,191] (although see [192]; also see [29,143,191,193] on possible compatibility arising from dissimilarity).…”

Section: Ultimate Explanationsmentioning

confidence: 99%

Why do we pick similar mates, or do we?

et al. 2021

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Humans often mate with those resembling themselves, a phenomenon described as positive assortative mating (PAM). The causes of this attract broad interest, but there is little agreement on the topic. This may be because empirical studies and reviews sometimes focus on just a few explanations, often based on disciplinary conventions. This review presents an interdisciplinary conceptual framework on the causes of PAM in humans, drawing on human and non-human biology, the social sciences, and the humanities. Viewing causality holistically, we first discuss the proximate causes (i.e. the ‘how’) of PAM, considering three mechanisms: stratification, convergence and mate choice. We also outline methods to control for confounders when studying mate choice. We then discuss ultimate explanations (i.e. ‘the why’) for PAM, including adaptive and non-adaptive processes. We conclude by suggesting a focus on interdisciplinarity in future research.

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Birds from matched developmental environments breed faster

Cited by 6 publications

References 58 publications

Density-by-Diet Interactions during Larval Development Shape Adult Life History Trait Expression and Fitness in a Polyphagous Fly

Density-by-Diet Interactions during Larval Development Shape Adult Life History Trait Expression and Fitness in a Polyphagous Fly

Maternally derived avian corticosterone affects offspring genome‐wide DNA methylation in a passerine species

Why do we pick similar mates, or do we?

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