Moths are declining rapidly across the UK and play critical roles as pollinators and prey species, with individual welfare implications from light pollution and habitat loss.
Individual moths suffer from light pollution through disrupted circadian rhythms, impaired thermoregulation, and exhaustion from continuous flight toward artificial lights. Congregating around street lights makes moths highly visible to predators. Moth larvae suffer starvation when their specific host plant species are absent from the landscape. Pesticide exposure at sublethal doses impairs navigation and mating, reducing reproductive success. The welfare of individual moths is best protected through reducing artificial light pollution, maintaining diverse native plant communities, and reducing pesticide use in gardens and agricultural land adjacent to moth habitats.