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Related Experiment Videos

Acclimatization patterns in tropical reptiles: uncoupling temperature and energetics.

Wiebke Berg1, Ole Theisinger2, Kathrin H Dausmann2

  • 1Department of Functional Ecology, University of Hamburg, Martin-Luther-King-Platz 3, 20146, Hamburg, Germany. wiebkeberg@gmail.com.

Die Naturwissenschaften
|October 14, 2017
PubMed
Summary

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Tropical reptiles show diverse acclimatization patterns, influenced by food and water availability, not just temperature. This study reclassifies these metabolic adjustments, revealing new categories of acclimatization.

Area of Science:

  • Zoology
  • Ecology
  • Physiology

Background:

  • Acclimatization in tropical ectotherms is often underestimated due to stable climates.
  • Recent studies reveal significant metabolic adjustments in tropical species.
  • Metabolic rates in ectotherms are influenced by temperature, energy needs, and restrictions.

Purpose of the Study:

  • To investigate the factors driving varied acclimatization patterns in tropical reptiles.
  • To test the hypothesis that food and water availability interact with thermal constraints.
  • To re-evaluate and categorize acclimatization patterns in tropical reptiles.

Main Methods:

  • Collected new physiological data from two sympatric Malagasy lizard species.
  • Conducted an extensive literature search on tropical reptile acclimatization.
Keywords:
AcclimationEctothermsMetabolic rateSeasonal acclimatizationSelective acclimatizationTropical reptiles

Related Experiment Videos

  • Analyzed metabolic adjustments in relation to thermal and energetic influences.

    • Main Results:

    • Observed contrasting acclimatization patterns in the studied Malagasy lizards.
    • Identified that non-thermal factors like resource availability play a crucial role.
    • Proposed a new scheme for classifying acclimatization patterns based on metabolic costs.

    Conclusions:

    • Acclimatization in tropical reptiles is complex, driven by multiple interacting factors.
    • Introduced two new categories: selective and selective inverse acclimatization.
    • Metabolic acclimatization strategies vary, reflecting diverse environmental pressures beyond temperature.