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Table 1 Measured UVA (315–400 nm) solar radiance (Watt/m2) through the day during three spring months at Veiholmen, Smøla, Norway

From: Do birds in flight respond to (ultra)violet lighting?

  1. Lines and italic values indicate when solar radiance dropped below UV light irradiance at 5 m (dotted line), 10 m (solid line) and 20 m (bold and thick line) distance from the lights (365 nm: 0.169, 0.042 and 0.011 Watt/m2 respectively; 400 nm: 0.646, 0.162 and 0.040 Watt/m2 respectively). In grey the daytime period is indicated when the UV lights were off
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Avian Research

ISSN: 2053-7166