Research overview: GPS fix-rate versus battery-life trade-offs in big-cat collars

Every GPS collar embodies a compromise: more frequent fixes reveal finer movement detail but drain the battery faster, shortening the tracking period. This overview examines how researchers schedule fixes for big cats to match their questions, from coarse hourly or daily fixes for home-range estimation to intensive sub-minute bursts for hunting and kill-site analysis. Battery mass also limits how small a collar can be, which matters for welfare and for smaller felids. Some collars vary their schedule adaptively, sampling intensively when the animal is active and sparingly when it rests. Understanding these trade-offs explains why two studies of the same species can report very different movement metrics simply because of how their collars were programmed.