Green light for nocturnally migrating birds
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Published source details
Poot H., Ens B.J., de Vries H., Donners M.A.H., Wernand M.R. & Marquenie J.M. (2008) Green light for nocturnally migrating birds. Ecology and Society, 13, 47-47.
Published source details Poot H., Ens B.J., de Vries H., Donners M.A.H., Wernand M.R. & Marquenie J.M. (2008) Green light for nocturnally migrating birds. Ecology and Society, 13, 47-47.
Actions
This study is summarised as evidence for the following.
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Use lights low in spectral red to reduce mortality from artificial lights Action Link |
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Use lights low in spectral red to reduce mortality from artificial lights
A replicated, controlled study from Friesland, the Netherlands (Poot et al. 2008), in September-November 2003, found that on clear nights, significantly fewer migrating birds were attracted to two 1,000 W lamps when they were covered with opaque white or red filters (61% of 38 birds and 54% of 13 birds reacting to each), compared with green (13% of eight) or blue (3% of 37) filters. The same pattern, but with higher overall levels of attraction were detected on overcast nights (white: 81% of 156 birds reacting; red: 54% of 24; green: 27% of 77; blue: 5% of 38).
Output references
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