Wolf reintroduction programmes achieve significant ecological benefits but involve welfare costs to individual animals during capture, translocation and establishment in new territories.
Wolf reintroduction involves deliberate welfare costs to individual animals in service of ecological restoration and population recovery goals. The acute stress of capture, translocation and establishment in unfamiliar territory is genuine but time-limited. The longer-term welfare of successfully established wolves in Yellowstone is genuinely better — adequate prey, natural pack structure, large ranges — than in the source populations that were more heavily managed. The welfare calculation supports reintroduction when it is ecologically appropriate and operationally achievable with minimised capture stress.