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Patterns of migrating soaring migrants indicate attraction to marine wind farms.

https://arctichealth.org/en/permalink/ahliterature285699
Source
Biol Lett. 2016 Dec;12(12)
Publication Type
Article
Date
Dec-2016
Author
Henrik Skov
Mark Desholm
Stefan Heinänen
Johnny A Kahlert
Bjarke Laubek
Niels Einar Jensen
Ramunas ┼Żydelis
Bo Præstegaard Jensen
Source
Biol Lett. 2016 Dec;12(12)
Date
Dec-2016
Language
English
Publication Type
Article
Keywords
Animal Migration
Animals
Denmark
Europe
Flight, Animal
Oceans and Seas
Power Plants
Raptors - physiology
Remote Sensing Technology
Wind
Abstract
Monitoring of bird migration at marine wind farms has a short history, and unsurprisingly most studies have focused on the potential for collisions. Risk for population impacts may exist to soaring migrants such as raptors with K-strategic life-history characteristics. Soaring migrants display strong dependence on thermals and updrafts and an affinity to land areas and islands during their migration, a behaviour that creates corridors where raptors move across narrow straits and sounds and are attracted to islands. Several migration corridors for soaring birds overlap with the development regions for marine wind farms in NW Europe. However, no empirical data have yet been available on avoidance or attraction rates and behavioural reactions of soaring migrants to marine wind farms. Based on a post-construction monitoring study, we show that all raptor species displayed a significant attraction behaviour towards a wind farm. The modified migratory behaviour was also significantly different from the behaviour at nearby reference sites. The attraction was inversely related to distance to the wind farm and was primarily recorded during periods of adverse wind conditions. The attraction behaviour suggests that migrating raptor species are far more at risk of colliding with wind turbines at sea than hitherto assessed.
Notes
Cites: J Environ Manage. 2015 Jan 1;147:34-4525261750
PubMed ID
28003522 View in PubMed
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