ArticleScientific reports2020
Environmental unpredictability shapes glucocorticoid regulation across populations of tree swallows.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Meta-analysis reveals glucocorticoid levels reflect variation in metabolic rate, not 'stress'.eLife · 2023Pooled it
- When Does Stress Build Strength? Linking Stress Physiology to Resilience in the Age of Rapid Environmental Change.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026Review
- Prenatal Household Income Instability and Infant Subcortical Brain Volumes.Developmental science · 2025Article
- Among-population variation in telomere regulatory proteins and their potential role as hidden drivers of intraspecific variation in life history.The Journal of animal ecology · 2025Article
- Prenatal Stress and Maternal Role in Neurodevelopment.Annual review of developmental psychology · 2024Article
- HPA flexibility andPhilosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024Review
- Thyroid hormone links environmental signals to DNA methylation.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024Review
- Interactive effects of rising temperatures and urbanisation on birds across different climate zones: A mechanistic perspective.Global change biology · 2023Review
- How can physiology best contribute to wildlife conservation in a warming world?Conservation physiology · 2023Article
- Great tits differ in glucocorticoid plasticity in response to spring temperature.Proceedings. Biological sciences · 2022Article
- Decreasing glucocorticoid levels towards the expansion front suggest ongoing expansion in a terrestrial mammal.Conservation physiology · 2021Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The ability to respond appropriately to challenges is an important contributor to fitness. Variation in the regulation of glucocorticoid hormones, which mediate the phenotypic response to challenges, can therefore influence the ability to persist in a given environment. We compared stress responsiveness in four populations of tree swallows (Tachycineta bicolor) breeding under different environmental conditions to evaluate support for different selective pressures in driving the evolution of glucocorticoid regulation. In accordance with the environmental unpredictability hypothesis, stronger stress responses were seen in more unpredictable environments. Contrary to the reproductive value hypothesis, the stress response was not lower in populations engaging in more valuable reproductive attempts. Populations with stronger stress responses also had stronger negative feedback, which supports a "mitigating" rather than a "magnifying" effect of negative feedback on stress responses. These results suggest that combining a robust stress response with strong negative feedback may be important for persisting in unpredictable or rapidly changing environments.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.