Bat White-Nose Syndrome Welfare and Conservation

White-nose syndrome has killed over 90% of some North American bat species and causes significant individual suffering.

Key Facts

White-nose syndrome is caused by the fungus Pseudogymnoascus destructans, introduced from Europe
Little brown bat populations declined over 90% in some eastern US states within 10 years of syndrome arrival
Affected bats are aroused repeatedly from hibernation, depleting fat reserves and causing starvation
The fungus causes skin lesions that disrupt thermoregulation and hydration during hibernation
Probiotic treatments and fungal inhibitors are being tested as conservation interventions

Welfare Considerations

White-nose syndrome causes profound suffering at the individual level for affected bats. The fungus disrupts hibernation by causing repeated arousal events — each costing significant fat reserves. Bats that exhaust their fat supplies before spring emergence die of starvation in the cave where they hibernated. The skin damage from the fungus causes discomfort and physiological dysfunction. The scale of mortality — billions of individual bats — makes this one of the most significant wildlife welfare disasters caused by an introduced pathogen in recorded history. Treatment and prevention research is among the highest-priority interventions for bat welfare and conservation.

What You Can Do

Decontaminate caving equipment to prevent spreading P. destructans between caves
Support white-nose syndrome research funding through donations
Avoid disturbing hibernating bats in winter — arousal events deplete critical fat reserves
Advocate for cave closure and decontamination protocols in bat hibernation areas
Install bat boxes to provide roost habitat for summer colonies