Visual prey detection by near-infrared cues in a fish.
Naturwissenschaften
; 99(12): 1063-6, 2012 Dec.
Article
en En
| MEDLINE
| ID: mdl-23086394
ABSTRACT
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.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Conducta Predatoria
/
Señales (Psicología)
/
Cíclidos
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Rayos Infrarrojos
Tipo de estudio:
Diagnostic_studies
Límite:
Animals
Idioma:
En
Revista:
Naturwissenschaften
Año:
2012
Tipo del documento:
Article
País de afiliación:
Alemania