Visual prey detection by near-infrared cues in a fish
Many animal species are able to perceive light wavelengths beyond those visible to humans. While numerous species are additionally sensitive to short wavelengths (UV), long wavelengths such as the near-infrared spectrum (NIR) are supposed to be unsuitable for visual perception. Here, we experimental...
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| Veröffentlicht in: | Die Naturwissenschaften 2012-12, Vol.99 (12), p.1063-1066 |
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| container_issue | 12 |
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| container_title | Die Naturwissenschaften |
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| creator | Meuthen, Denis Rick, Ingolf P Thünken, Timo Baldauf, Sebastian A |
| description | Many animal species are able to perceive light wavelengths beyond those visible to humans. While numerous species are additionally sensitive to short wavelengths (UV), long wavelengths such as the near-infrared spectrum (NIR) are supposed to be unsuitable for visual perception. Here, we experimentally show that under exclusive NIR illumination, the cichlid fish Pelvicachromis taeniatus displays a clear foraging response towards NIR reflecting prey. Additional control experiments without prey indicate that the observed behavior is not a mere response to the NIR environment. These results give first evidence for NIR visual sensitivity in a functional context and thus challenge the current view about NIR perception. |
| doi_str_mv | 10.1007/s00114-012-0980-7 |
| format | Article |
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| ispartof | Die Naturwissenschaften, 2012-12, Vol.99 (12), p.1063-1066 |
| issn | 0028-1042 1432-1904 |
| language | eng |
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| source | MEDLINE; SpringerLink Journals - AutoHoldings |
| subjects | Animals Behavior, Animal - physiology Biomedical and Life Sciences Cichlidae Cichlids - physiology Cues Environment Female fish foraging Freshwater Infrared Rays Life Sciences lighting Male Pelvicachromis taeniatus Predatory Behavior - physiology Short Communication Visual Perception - physiology wavelengths |
| title | Visual prey detection by near-infrared cues in a fish |
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