While insect sentience remains debated, the dramatic decline of monarch butterfly populations raises concerns that extend to potential welfare considerations.
The welfare implications of monarch butterfly population decline are debated due to uncertainty about insect sentience. However, from a precautionary perspective, the suffering of billions of individual butterflies from pesticide exposure, habitat loss, and disrupted migrations deserves consideration. Additionally, the ecological roles of monarchs - as pollinators and prey species - have cascading welfare implications for other animals that depend on pollinator-supported plant communities.