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Beneficial acclimation and the Bogert effect.

Elrike Marais1, Steven L Chown

  • 1Centre for Invasion Biology, Department of Botany and Zoology, Stellenbosch University, Private Bag X1, Matieland, 7602 Stellenbosch, South Africa. emarais@sun.ac.za

Ecology Letters
|July 12, 2008
PubMed
Summary
This summary is machine-generated.

Behavioral regulation influences phenotypic plasticity. Kelp fly adults showed faster recovery from chill coma after low-temperature acclimation, while larvae exhibited beneficial acclimation, demonstrating life-stage differences in thermal adaptation.

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Area of Science:

  • Ecology
  • Animal Behavior
  • Physiology

Background:

  • Phenotypic plasticity allows organisms to adjust to environmental changes.
  • Behavioral responses can mediate or mask physiological acclimation.
  • The Bogert effect describes how behavior can influence the evolution of physiological traits.

Purpose of the Study:

  • To investigate the influence of behavioral regulation on thermal acclimation in kelp flies.
  • To compare acclimation responses between two life stages with differing behaviors.
  • To test the Bogert effect in a naturalistic setting.

Main Methods:

  • Utilized two life stages of kelp flies (adults and larvae) with distinct behavioral patterns.
  • Subjected individuals to controlled short-term temperature treatments after acclimation.
  • Employed ordered factor ANOVA with orthogonal polynomial contrasts to analyze performance data.

Main Results:

  • Adult kelp flies, when denied behavioral regulation, showed faster recovery from chill coma after low-temperature acclimation.
  • Larval kelp flies, being less mobile, displayed more evident beneficial acclimation across thermal environments.
  • Acclimation benefits varied significantly between adult and larval stages.

Conclusions:

  • Behavioral plasticity plays a crucial role in modulating physiological acclimation to temperature.
  • Life-stage-specific behaviors impact the extent and effectiveness of thermal adaptation.
  • The Bogert effect is evident, with behavior influencing the need for physiological adjustment.