Here in the Susquehanna Valley, we have two common species of bats. They are the little brown bat and the big brown bat. Both species tend to use buildings such as abandoned houses, barns, church steeples and sometimes the attics of our very-much occupied houses as their roosts. All of these locations provide a perfect summer home for female bats and for her brood.
Bats are affected by a fungus, which appears on their muzzle (white-nose) and on their wings while they hibernate in the winter. Researchers believe the condition rouses them from their slumber and saps them of their energy. They can starve to death during hibernation. The disease is not contagious to humans or pets.
According to Calvin Butchkoski, who is also a game commission wildlife biologist, "The bats have a "mechanical approach" to fighting the disease. If affected, they will search for a new roost. But given that they’re in their winter hibernation it may be too cold for them to handle and they literally freeze to death. Also, their food sources are scarce so they have nothing to eat when their small bodies need it most."
White-nose syndrome, which moved into Pennsylvania in 2008, has already started to tip the natural balance. Butchkoski said that, "We’re seeing a shift in species. Little brown bats were by far the most numerous species in Pennsylvania before white-nose syndrome, whereas now little brown bats have been greatly affected by this disease. Their population has declined dramatically."
Female bats in summer maternity colonies can consume their body weight in insects in a single night. With fewer bats, it stands to reason that there will be more bugs. Bat’s insect diet includes pests that damage crops and blood-sucking mosquitoes that could transmit diseases to humans. As more bugs go uneaten by the bats, there will be a financial burden to the agriculture industry. Likely, the pesticide industry will be called upon to come up with more-lethal bug killers and outdoor enthusiasts while need to lather on more nasty bug repellants. Neither of which is good news.
So if you, your family or your organization could assist with counting the bats in our valley it would be a big help.
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