Beyond colour: consistent variation in near infrared and solar reflectivity in sunbirds (Nectariniidae)
The visible spectrum represents a fraction of the sun’s radiation, a large portion of which is within the near infrared (NIR). However, wavelengths outside of the visible spectrum that are reflected by coloured tissues have rarely been considered, despite their potential significance to thermal effects. Here, we report the reflectivity from 300 to 2100 nm of differently coloured feathers. We measured reflectivity across the UV-Vis-NIR spectra of different (a) body parts, (b) colour-producing...[Show more]
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|Source:||The Science of Nature (formerly Naturwissenschaften)|
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