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Article: Wind farm pressure drop kills more bats
- Article from:
- Belfast Telegraph
- Article date:
- August 26, 2008
- Author:
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Copyright informationCopyright 2008 Belfast Telegraph. Provided by ProQuest LLC. (Hide copyright information)
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Wind turbines kill more bats than birds - because of the sudden
drop in air pressure which occurs near to the blades, scientists
have said.
As bats use echo location to detect objects, they rarely fly into
man-made structures, researchers at the University of Calgary,
Canada, said.
But a study of bats discovered dead at power-generating wind
farms found 90% showed signs of haemorrhaging consistent with
'barotrauma' caused by a drop in pressure, the scientists writing in
Current Biology journal said.
Only half the dead bats studied at a wind facility in Alberta
showed any signs of direct contact with the blades. Just 8% of those
dissected and examined had external injuries from impact but no ...
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