Deter bats from turbines using low-level ultraviolet light
Overall effectiveness category No evidence found (no assessment)
Number of studies: 0
Background information and definitions
It has been suggested that bats may approach wind turbines because they misidentify them as trees (Cryan et al. 2014). Illuminating turbines with ultraviolet light may help bats to differentiate between wind turbines and trees. A study in the USA found that the activity of Hawaiian hoary bats Lasiurus cinereus semotus was lower at trees lit with dim flickering ultraviolet lights than at unlit trees (Gorresen et al. 2015). However, this has yet to be tested at wind turbines.
Cryan P.M., Gorresen P.M., Hein C.D., Schirmacher M.R., Diehl R.H., Huso M.M., Hayman D.T.S., Fricker P.D., Bonaccorso F.J., Johnson D.H., Heist K. & Dalton D.C. (2014) Behavior of bats at wind turbines. Proceedings of the National Academy of Sciences, 111, 15126–15131.
Gorresen P.M., Cryan P.M., Dalton D.C., Wolf S., Johnson J.A., Todd C.M. & Bonaccorso F.J. (2015) Dim ultraviolet light as a means of deterring activity by the Hawaiian hoary bat Lasiurus cinereus semotus. Endangered Species Research, 28, 249–257.