Wild Bats and White-Nose Syndrome Welfare Crisis

White-nose syndrome caused by Pseudogymnoascus destructans has killed over 7 million North American bats, causing mass mortality events of profound welfare and ecological significance.

Key Facts

White-nose syndrome has caused population declines of 70-99% in affected cave bat species since 2006
The little brown bat declined by 99% in some populations, from millions to thousands
The fungus causes bats to arouse from hibernation prematurely, burning fat reserves and starving
A single little brown bat consumes up to 1,200 mosquitoes per hour, making bat loss ecologically devastating
Probiotic treatments using Pseudomonas fluorescens bacteria show promise in field trials

Welfare Considerations

Bats dying from white-nose syndrome experience a prolonged welfare crisis: aroused from hibernation mid-winter, they emerge into cold and snow with depleted fat reserves, flying in futile search of insects that are not yet active. Death from starvation and exposure follows. The social nature of cave bat species means entire roosts are affected simultaneously. Probiotic treatment programs that inoculate bat populations before hibernation represent one of the most hopeful wildlife welfare interventions currently under development.

What You Can Do

Support White-nose Syndrome fund through the National Speleological Society
Install bat boxes to provide summer roost habitat as cave populations recover
Never disturb hibernating bats in caves or mines during winter months
Advocate for cave closure programs that limit white-nose syndrome spread to unaffected caves