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Related Experiment Video

Updated: Feb 12, 2026

Author Spotlight: Studying the Impact of Maternal Dietary Deficiencies on Long-Term Offspring Health Outcomes
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Maternal effects impact decision-making in a viviparous lizard.

Kirke L Munch1, Daniel W A Noble2,3, Thomas Botterill-James2

  • 1School of Biological Sciences, University of Tasmania, Hobart, Tasmania, Australia klmunch@utas.edu.au.

Biology Letters
|April 13, 2018
PubMed
Summary

Maternal diet during gestation shapes offspring decision-making. Offspring from mothers with low food access excelled in anti-predatory tasks, while those from well-fed mothers performed better in foraging tasks, revealing prenatal influences on animal cognition.

Keywords:
cognitiondevelopmental stressdietinformation biasontogenyreptiles

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Area of Science:

  • Developmental biology
  • Animal behavior
  • Cognitive ecology

Background:

  • Early life stress can negatively impact offspring development.
  • The influence of developmental stress on cognitive phenotypes is understudied.
  • Decision-making is a crucial cognitive trait with lifelong implications.

Purpose of the Study:

  • To investigate how maternal resource availability during gestation affects offspring decision-making.
  • To determine if prenatal environmental conditions influence specific cognitive strategies in offspring.

Main Methods:

  • Utilized a viviparous lizard model to study developmental stress effects.
  • Manipulated maternal food resource availability during gestation.
  • Assessed offspring cognitive performance in distinct anti-predatory and foraging tasks.

Main Results:

  • Offspring from mothers experiencing low resource availability showed enhanced performance in spatial-association-based anti-predatory tasks.
  • Offspring from mothers experiencing high resource availability demonstrated superior performance in color-association-based foraging tasks.
  • Prenatal resource availability significantly influenced the type of decision-making strategies employed by offspring.

Conclusions:

  • The prenatal environment, specifically maternal nutrition, critically shapes offspring cognitive phenotypes.
  • Developmental stress can lead to adaptive specializations in decision-making strategies relevant to offspring survival and resource acquisition.
  • Findings highlight the plasticity of cognitive traits in response to early-life conditions.