Radio tags, GPS collars and implantable devices used in wildlife research carry welfare implications that must be carefully managed.
Wildlife tracking technology creates a direct welfare tradeoff: the devices cause some harm but enable conservation knowledge that benefits the species. The welfare obligation is to minimize device burden — through appropriate sizing, careful fitting and research into lighter alternatives. Tags that impair movement, cause sores or alter behavior compromise both animal welfare and research validity. Developing and adopting the least-invasive effective tracking technology is a core research ethics responsibility.