American bison conservation involves complex welfare trade-offs between wild population management, habitat constraints, and the needs of individual animals in restored herds.
Bison conservation creates genuine welfare tensions. Annual roundups for brucellosis testing, genetic sampling, and population management cause acute stress responses including elevated cortisol, injuries, and separation from herd members. Yet without such management, disease transmission risks and habitat limits create longer-term population and welfare problems. Best practice minimizes roundup frequency and duration, uses low-stress handling techniques adapted from livestock behavior science, and prioritizes spatial arrangements that allow rapid herd reunion after procedures. Expanding protected areas to reduce the necessity for intensive management is the long-term welfare goal.