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Related Experiment Video

Updated: Apr 19, 2026

Using a Murine Model of Psychosocial Stress in Pregnancy as a Translationally Relevant Paradigm for Psychiatric Disorders in Mothers and Infants
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Developmental stress can uncouple relationships between physiology and behaviour.

Vincent Careau1, William A Buttemer2, Katherine L Buchanan2

  • 1Centre for Integrative Ecology, Deakin University, Geelong, Victoria 3216, Australia vcareau@deakin.edu.au.

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Summary

Developmental dietary restriction in zebra finches permanently altered physiological and behavioral links. This early life stress uncoupled energy budget trade-offs, impacting how birds maintain themselves and move in new environments.

Keywords:
activitydietary restrictionexplorationmetabolismpersonalityresting metabolic rate

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Area of Science:

  • Animal behavior
  • Physiology
  • Developmental biology

Background:

  • Phenotypic correlations link physiological and behavioral traits.
  • Environmental stressors can alter these associations.
  • Effects of developmental stress on these correlations are largely unknown.

Purpose of the Study:

  • To investigate the long-term effects of developmental dietary restriction on phenotypic correlations.
  • To examine how early-life stress impacts the relationship between physiological and behavioral traits in adult female zebra finches.

Main Methods:

  • Female zebra finches were subjected to dietary restriction during the nestling stage.
  • Physiological traits (hematocrit, corticosterone, basal metabolic rate) and behavioral traits (activity, feeding rates) were measured.
  • Phenotypic correlations between these traits were analyzed in adulthood.

Main Results:

  • Developmental stress completely disrupted the correlation between activity in novel environments and hematocrit.
  • The link between activity in novel environments and basal metabolic rate was also uncoupled by developmental stress.
  • These findings suggest altered energy budgets in birds exposed to early nutritional stress.

Conclusions:

  • Nutritionally based developmental stress can permanently alter physiology-behavior relationships.
  • Early life stress may modify energy allocation strategies, decoupling maintenance costs from activity levels.
  • This research highlights the lasting impact of developmental conditions on organismal integration.