Action: Apply textured coating to turbines
Key messagesRead our guidance on Key messages before continuing
- We found no studies that evaluated the effects of applying textured coating to turbines on bat populations.
‘We found no studies’ means that we have not yet found any studies that have directly evaluated this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.
It has been suggested that bats may misidentify the smooth surfaces of wind turbine towers as water (e.g. McAlexander 2013) and applying a textured coating could reduce bat collisions and fatalities. Behavioural experiments in flight rooms found that bats did not make contact with textured surfaces and approached them less often than smooth surfaces (Greif & Siemers 2010, Bienz 2015). However, this has not been tested on operational wind turbines.
Bienz C. (2015) Surface texture discrimination by bats: implications for reducing bat mortality at wind turbines. MSc Thesis. Texas Christian University, USA.
Greif S. & Siemers B.M. (2010) Innate recognition of water bodies in echolocating bats. Nature Communications, 1, 107.
McAlexander C. (2013) Evidence that bats perceive wind turbine surfaces to be water. MSc Thesis. Texas Christian University.