Complexities of Using Wild versus Captive Activity Budget Comparisons for Assessing Captive Primate Welfare

Area of Science:

• Animal behavior
• Animal welfare science
• Ethology

Background:

• Activity budget comparisons between wild and captive animals are standard for assessing nonhuman animal welfare.
• This method is particularly prevalent for primates due to anthropomorphism and associated welfare concerns.
• The validity of using activity budgets as the sole indicator of good welfare has not been rigorously assessed.

Purpose of the Study:

• To critically evaluate the use of activity budget comparisons for inferring animal welfare.
• To identify limitations and complexities associated with using wild behavior as a benchmark for captive animal welfare.
• To propose improved methodologies for welfare assessment in captive animals.

Main Methods:

• Literature review of studies comparing wild and captive animal activity budgets.
• Analysis of identified complexities in defining and measuring animal welfare through behavioral observation.
• Identification of factors influencing behavioral expression in captive settings.

Main Results:

• Key complexities include behavioral motivation, adaptation, the suitability of the wild as a benchmark, methodological variances, and socio-environmental factors.
• Activity budgets alone present significant challenges in accurately reflecting an animal's welfare state.
• Current methods may not adequately capture the nuances of well-being in captive populations.

Conclusions:

• Relying solely on activity budget comparisons to gauge animal welfare is insufficient.
• Future research should incorporate multiple welfare indices and methods that infer positive emotional states.
• A more comprehensive approach is needed to accurately assess and ensure the welfare of captive animals, particularly primates.