Wild invertebrates perform essential ecosystem services while potentially experiencing something like suffering - their welfare deserves consideration even as scientific uncertainty remains.
Wild invertebrate welfare represents an enormous frontier of both practical action and scientific uncertainty. Actions that benefit wild invertebrate populations - reducing pesticide use, creating habitat, reducing light pollution - may represent welfare improvements if invertebrates are sentient, and are clearly beneficial for ecosystem function regardless. The asymmetry between potential welfare benefit and low cost of action strongly favours adopting these practices under uncertainty. Individual garden management choices aggregate to significant population-level impacts for wild invertebrates.