Acoustic Surveillance to Monitor the Prevalence of White-nose Syndrome at Winter Hibernacula

Acoustic surveillance is a viable means for assessing WNS prevalence, offering some advantages compared to other surveillance methods including minimization of disturbance especially during winter, no risk of human spread of the fungus, and relatively easy equipment set-up. Acoustic surveillance can also help identify atypical behaviors exhibited by bats infected with WNS including daytime activity, emergence in below-freezing conditions, frequent arousals, or roosting at or near cave entrances.