White-nose syndrome (WNS), devastating North American bat populations, is caused by the fungus Pseudogymnoascus destructans present in Europe. UK vigilance is essential.
WNS causes bats to rouse repeatedly during hibernation, depleting fat reserves and causing starvation before winter ends. Affected bats emerge prematurely in cold conditions and starve. Vigilance monitoring for unusual bat mortality, biosecurity at hibernation sites, and reducing other bat stressors that might weaken immunity are key welfare precautions.