Library filed under Impact on Bats from Germany
If extrapolated to all of Britain’s wind farms it would mean 80,000 die each year from colliding with the blades. The number increased with blade length with some individual turbines responsible for the deaths of five bats each month.
The mystery of why more than 80,000 bats are killed by wind turbines in the UK each year may finally have been solved. Scientists found the winged creatures are naturally drawn to sources of red light – an attraction that can confuse them on migration routes.
Koch proposes shutting down wind turbines at times when bats' migration path puts them at risk from the huge, rotating blades. But if bat protection is to be taken into consideration when designing policy – on wind energy development, forestry, agriculture and the use of pesticides – solid data is essential.
Germany's model transition to clean energy can mean conflict with conservationists. In Bremerhaven, an environment group has blocked plans for an offshore wind power port with a court order. A conundrum to be avoided?
This important study concludes that more than 250,000 bats are killed annually due to interactions with German wind turbines, and total losses may account for more than two million killed bats over the past 10 years, if mitigation measures were not practiced. The abstract to the paper is provided below. The full paper can be accessed by clicking the links on this page.
More than two-thirds of bats being killed by wind turbines on German ground are migrants on their way between summer and winter habitats. Due to its geographical location in Europe, Germany has consequently a central responsibility for the conservation of migratory bats, experts say.
In this recent study, researchers present a comprehensive study on the breeding provenance of endangered and protected noctule bats killed at German wind turbines, showing that individuals from local and distant populations are among the recorded fatalities. The results provide a first step on the way towards an evaluation on how bat fatalities at wind turbines might impact local and regional populations in migratory bat species. The abstract of the paper is provided below. The full paper can be accessed by clicking the link(s) on this page.
Previous studies have already highlighted that more than 200,000 bats are killed each year by German wind turbines. Researchers are convinced that such high mortality rates may not be sustainable ...Voigt calls for stronger legislative agreements. The large-scale development of wind farms throughout Germany may have negative consequences for even remote ecosystems in northeastern Europe.
Massive wind turbines seem to be killing more and more migratory bats, prompting research into these neglected creatures and efforts to minimize the toll. ...The deaths have led to a flurry of research on migratory bats and their behavior. "The problem with bats and wind energy has pushed a lot of work that wouldn't have occurred otherwise," says Edward Arnett of the Austin, Texas-based nonprofit Bat Conservation International. Indeed, at a January conference in Berlin on migratory bats, wind farms were a dominant theme. Scientists are racing to figure out what brings the bats in contact with wind turbines, and what can be done to save them.
German animal campaigners are alarmed by the number of dead bats being found near wind turbines and have called for restrictions on generators in areas with high populations of the nocturnal mammal. "The bats are not only being clobbered to death by the turbines, but can also suffer from collapsed lungs due to the drastic change in air pressure," said Hermann Hoetker of the Michael Otto Institute for wildlife and the environment.