The rapid decline of insect populations has profound welfare implications for the countless species that depend on insects for food. Understanding insect decline motivates conservation action with broad welfare benefits.
Insect decline is a welfare issue of cascading scale. When insect populations collapse, the ripple effects move through food webs that support hundreds of thousands of vertebrate species. Swallows that cannot find enough aerial insects to feed their chicks, bats that cannot accumulate enough fat before hibernation, frogs that find their invertebrate prey scarce — all experience welfare consequences from insect decline. Protecting insect populations through pesticide reduction, habitat restoration, and light pollution management is not only an ecological imperative but a welfare intervention for the entire community of insect-dependent animals.