In some hibernacula, populations plunged by as much as ninety-seven per cent.
In many hibernacula — the disease seems to afflict bats only during the winter — the mortality rate has reached over ninety per cent.
The salamanders remained in their hibernacula -- the holes in the ground where they had spent the winter below the frost line.
It has been hypothesized that the fungus normally subsists by breaking down organic matter in a chilly place, and that it was transported into bat hibernacula, where it began to break down bats.
Such places are few and far between, and good hibernacula (dens used for hibernation) are recognized over generations and are utilized year after year, with snakes of several different species often sharing a den.
The interior, eight feet wide, is fitted out with an enormous computer console, an electronically operated medical dispensary, a shower, a device for taking an artificial sunbath, a recreation area, with a ping-pong table and an electronic piano, and five beds with movable plastic domes — hibernacula, where astronauts who are not on duty can, literally, hibernate for months at a time.
"In the Berkshires in Massachusetts, we are getting reports of dying/dead bats in areas where we do not have known bat hibernacula, so we may have more sites than we will ever be able to identify," said Susi von Oettingen, an endangered species biologist with the United States Fish and Wildlife Service.
Habitat protection and management of summer roosting habitat and cave hibernacula are recommended for the recovery of this species.
White-nose syndrome (WNS) is an emerging disease affecting hibernating bats in eastern North America that causes mass mortality and precipitous population declines in winter hibernacula.
As the sun lengthens the days and warms the ground, adders emerge from their hibernacula more frequently and can be spotted sunning themselves in coastal heaths and scrub.
In all populations except those in Kaua'i, D. anglica forms winter resting buds called hibernacula.
