Comparing behavioural sampling methods in shelter dogs: implications for enrichment studies.

Area of Science:

• Animal behavior and welfare science
• Ethology and applied ethology
• Shelter medicine and management

Background:

• Animals in human environments experience behavioral constraints and welfare issues.
• Shelter dogs (Canis lupus familiaris) are a key model for studying welfare and behavioral assessment methods.
• Artificial settings pose challenges for observing natural behaviors.

Purpose of the Study:

• To compare behavioral sampling methods (continuous recording vs. instantaneous sampling) in shelter dogs.
• To evaluate the short-term behavioral effects of social and olfactory enrichment.
• To assess the reliability of different sampling methods for behavioral data collection.

Main Methods:

• Compared continuous recording (CR) with instantaneous sampling (IS) at 15s, 30s, and 60s intervals.
• Implemented an enrichment manipulation (social interaction vs. olfactory stimulation).
• Used an ecologically valid experimental framework in a shelter setting.

Main Results:

• Instantaneous sampling systematically underestimated behavioral expression compared to CR, with greater underestimation at longer intervals.
• Inactive lying increased significantly after social interaction compared to olfactory enrichment.
• Stress-related behaviors were infrequent, indicating no aversive effects from either enrichment type.

Conclusions:

• The choice of behavioral sampling method (CR vs. IS) significantly impacts data interpretation.
• Both social and olfactory enrichment are safe and can be beneficial for shelter dogs.
• Aligning sampling methods with research goals is crucial for accurate behavioral assessment and enrichment program design.