Bat White-Nose Syndrome and Wildlife Welfare

How white-nose syndrome is devastating North American bat populations and what conservation efforts are doing to stop the suffering.

Key Facts

White-nose syndrome (WNS) is caused by the fungus Pseudogymnoascus destructans and has killed over 6 million North American bats since 2006
The disease causes bats to emerge from hibernation during winter, burning fat reserves and dying from starvation and exposure
Little brown bats and tri-colored bats have experienced population declines of up to 90% in affected areas
WNS has spread across most of North America and threatens to reach the Pacific coast bat populations
Probiotic treatments applied to bats before hibernation have shown promise in reducing WNS mortality in trials
UV light treatment of hibernation caves can reduce fungal load in the environment
The ecological consequences of mass bat mortality include increased agricultural insect pests and disrupted ecosystem services

Welfare Considerations

White-nose syndrome causes an agonizing death for affected bats - the disease disrupts hibernation, causing bats to emerge in winter when no insects are available, and they die slowly from starvation, dehydration, and exposure. The welfare suffering of millions of affected individuals is real and ongoing. The ecological collapse of bat populations has cascading welfare effects through the ecosystem, with insect populations increasing and affecting other species that benefit from natural pest control. Research into treatments and preventive measures is critical both for bat welfare and ecosystem function. This disease exemplifies how wildlife welfare and conservation are inseparably linked.

What You Can Do

Support organizations funding WNS research and bat conservation programs
Never enter bat hibernation caves during winter or without following decontamination protocols
Install bat boxes to provide alternative roosting habitat and support remaining bat populations
Reduce pesticide use to support insect populations that recovering bats need as food
Report unusual bat mortality events to wildlife authorities as this data helps track disease spread