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Old 12-24-2011, 07:31 PM
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Unhappy Noise Pollution Effects on Nature

Article about the effects of noise pollution...

Quote:
Noise in Nature

Human-generated sounds threaten to overwhelm wild creatures.


By Claire Sykes
October 2008


Mowers and leaf blowers, sirens and jets—we sure can make a racket. All that blaring and blasting invades our lives and assaults our auditory canals. Whether we’re aware of the noise or not, it can take its toll on us—and on other living creatures within earshot.




“For humans, noise causes stress. That’s when the brain has to spend energy filtering out unwanted sound so our ears can receive the information we’re trying to get,” says Bernie Krause, PhD, bioacoustician and founder of Wild Sanctuary (www.wildsanctuary.com) in Glen Ellen, California, and author of Wild Soundscapes: Discovering the Voice of the Natural World (Wilderness Press). This explains why you can’t help but wince when a motorcycle thunders by.

Little is known about precisely how wild creatures receive and process human noise in their natural habitats, although recent studies indicate that the effect can be profound, Krause says, adding that “if the acoustic fabric of their environment is interfered with, their communication is masked.” That means they can’t chirp about mating and migrating or grunt over foraging and fighting.
FULL ARTICLE: http://www.energytimes.com/pages/fea...309/noise.html
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