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Author Zhao, X.; Zhang M.; Che, X.; Zou, F. url  doi
  Title Blue light attracts nocturnally migrating birds Type Journal Article
  Year 2020 Publication The Condor Abbreviated Journal  
  Volume in press Issue Pages in press  
  Keywords Animals  
  Abstract Light pollution is increasing and artificial light sources have great impacts on animals. For migrating birds, collisions caused by artificial light pollution are a significant source of mortality. Laboratory studies have demonstrated that birds have different visual sensitivities to different colors of light, but few field experiments have compared birds’ responses to light of different wavelengths. We used 3 monochromatic lights (red, green, and blue) and polychromatic yellow light to study the impact of wavelength on phototaxis at 2 gathering sites of nocturnally migrating birds in Southwest China. For both sites, short-wavelength blue light caused the strongest phototactic response. In contrast, birds were rarely attracted to long-wavelength red light. The attractive effect of blue light was greatest during nights with fog and headwinds. As rapid urbanization and industrialization cause an increase in artificial light, we suggest that switching to longer wavelength lights is a convenient and economically effective way to reduce bird collisions.


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  Call Number GFZ @ kyba @ Serial 2896  
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