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August 3, 2025Open Access

Corticosterone elevation is associated with rapid, sex-specific increases in food-acquisition behaviors in free-living seabird chicks

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Authors

ZBZ Morgan Benowitz‐FredericksAWAlexis WillSPSierra N. Pete

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Overview

Experiments demonstrate that corticosterone influences aggression and begging in seabird chicks, highlighting sex-specific responses.

Key Points

  • Corticosterone levels were negatively correlated with feeding rates in free-living seabird chicks, particularly in males.
  • Behavioral changes like increased aggression and begging were associated with elevated corticosterone levels after restraint.
  • The study involved measuring baseline corticosterone and observing behaviors of kittiwake chicks under various conditions.
  • Findings suggest that elevated corticosterone can redirect behaviors with potential impacts on fitness in seabird chicks.

Cite This Study

Benowitz‐Fredericks et al. (2025) studied this question.

synapsesocial.com/papers/689a0c7be6551bb0af8d0717https://doi.org/10.1101/2025.07.14.664366
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Corticosterone release in very young siblicidal seabird chicks (<i>Rissa tridactyla</i>) is sensitive to environmental variability and responds rapidly and robustly to external challenges2024
  2. 2Breeding under pressure: Corticosterone is associated with reproductive investment under fluctuating predation risk in a long‐lived sea duck2023 · 9 citations
  3. 3Environmentally induced stress affects fitness of bold and shy alike: A long-term study of personality and feather corticosterone in Arctic-breeding kittiwakes.2026
  4. 4Environment‐dependent relationships between corticosterone and energy expenditure during reproduction: Insights from seabirds in the context of climate change2024 · 4 citations
  5. 5Maximum Free Glucocorticoids Link Natural Behavior and Stressors in a Wild Bird Population2025