Prior experience of captivity affects behavioural responses to 'novel' environments

Area of Science:

• Animal behavior
• Ecology
• Ethology

Background:

• Information ecology theory suggests prior experience impacts current behavior.
• The influence of prior experience on animal testing is often overlooked.
• Novelty in testing environments may not be consistent across individuals.

Purpose of the Study:

• To investigate how prior handling and captivity experience affect great tit behavior.
• To examine the influence of experience on exploration, social response, and stress in wild birds.
• To determine if age moderates the effect of prior experience on behavior.

Main Methods:

• Wild great tits (Parus major) were tested for exploration, social response, and stress.
• Exploration was measured using open field tests in room and cage arenas.
• Prior experience included handling and time spent in captivity for previous experiments.

Main Results:

• Birds with prior captivity experience showed increased exploration.
• This effect was more pronounced in younger (first-winter) birds compared to adults.
• Prior experience did not influence social response or breathing rate (stress).
• Exploration measures did not correlate with each other.

Conclusions:

• Re-testing wild animals requires careful consideration of their previous experiences.
• Prior experience can significantly influence behavioral responses, particularly in younger individuals.
• The impact of experience is context-dependent and may not affect all behaviors equally.