Proximity tracking using ultra-wideband technology for equine social behaviour research.

Area of Science:

• Animal Behavior
• Ethology
• Wearable Technology Applications

Background:

• Sociopositive interactions are crucial for equine welfare and quality of life.
• Quantifying social behavior in horses is essential for understanding their well-being.
• Previous methods for observing equine social dynamics were limited in scope and continuous measurement.

Purpose of the Study:

• To validate the use of wearable ultra-wideband (UWB) technology for quantifying spatial relationships in horses.
• To assess the accuracy, feasibility, and utility of UWB technology for measuring equine social behavior under dynamic field conditions.
• To differentiate between affiliative and agonistic social approaches in horses using UWB-derived proximity and speed data.

Main Methods:

• Wearable ultra-wideband (UWB) devices were used to continuously measure interindividual distances (1/s) in a group of 8 horses.
• Spatiotemporal accuracy of UWB devices was initially tested in a static environment.
• UWB proximity measurements were compared with video surveillance data to establish measurement validity (r=0.83, p<0.0001).

Main Results:

• UWB technology demonstrated high accuracy and validity in measuring interindividual distances in dynamic equine social settings.
• Affiliative relationships identified using UWB showed excellent accordance with video observations.
• Analysis of approach speed and proximity successfully differentiated affiliative (slower, closer) from agonistic (faster, more distant) interactions.

Conclusions:

• Wearable UWB technology is a valid and feasible tool for continuous, objective quantification of spatial dynamics in equine social behavior.
• This technology offers significant utility for ethological research, enabling detailed analysis of social relationships and interaction types.
• UWB measurements provide insights into the nuances of horse social interactions, contributing to improved animal welfare assessments.