Physiological differences between wild and captive animals: a century-old dilemma.

Area of Science:

• Comparative physiology
• Biomechanics
• Ecological research

Background:

• Laboratory research is the dominant approach in comparative physiology and biomechanics.
• Historical decisions favored lab experiments for control, as exemplified by Georgy Gause's work in 1932.
• Discrepancies between lab and field experimental results raise concerns, particularly for predicting wildlife responses to environmental changes in the Anthropocene.

Purpose of the Study:

• To discuss hypothesized mechanisms explaining disparities between laboratory and field experimental results in physiology.
• To propose strategies for understanding these differences.
• To improve the understanding of wild animal physiology using insights from comparative studies.

Main Methods:

• Review and discussion of existing literature on lab versus field experimental outcomes.
• Hypothesizing potential mechanisms driving physiological differences between captive and wild animals.
• Proposing future research directions and strategies.

Main Results:

• Physiological experiments can yield contradictory results depending on whether they are conducted in laboratory or field settings.
• There are still significant knowledge gaps regarding the differences between captive and wild animals.
• Understanding these differences is critical for accurate conservation and management decisions.

Conclusions:

• Disparities between lab and field studies in physiology are significant and require further investigation.
• Developing strategies to reconcile lab and field findings is essential for advancing our understanding of wild animal physiology.
• Future research should prioritize elucidating the mechanisms underlying differences between captive and wild animal physiology.