The devastating welfare and conservation impact of white-nose syndrome on North American bat populations and response efforts.
White-nose syndrome represents one of the most severe wildlife disease welfare crises in North American history. Affected bats experience prolonged suffering during winter: the fungus disrupts hibernation physiology, causing bats to arouse more frequently than normal, burning their fat reserves. In the final stages before death, bats emerge during daylight in winter conditions, fly erratically, and die from starvation and exposure. This welfare tragedy is playing out at enormous scale — hundreds of millions of bats have died since the disease emerged. The welfare and ecological significance of bat decline is profound: these animals provide irreplaceable pest control services and pollination, meaning their decline affects ecosystems and other species. Research into antifungal treatments, probiotic applications, and genetic resistance represents the most important welfare intervention available.