Tawny owl (Strix aluco)

Containing taxa: Animalia » Chordata » Osteichthyes » Sarcopterygii » Tetrapoda » Diapsida » Archosauria » Aves » Neoaves » Strigiformes » Strigidae

Photoreceptors:
Receptor Opsin λmax Filter λmax Filter λ50% Recep. λmax
Red cone555nm515nm580nm581nm
Predominant cone555nm475nm512nm561nm
Green cone503nm475nm512nm526nm
Rod503nm  503nm
Blue cone463nm408nm440nm469nm


Opponent processes:
Description (+) Terminus (-) Terminus Mode
Luminance (photopic)
Predominant cone   Photopic
Luminance (scotopic)
Rod   Scotopic
Amber-Green
592nm - 554nm - 521nm
 
Red cone Green cone Photopic
Green-Blue
545nm - 507nm - 465nm
 
Green cone
Red cone
Blue cone Photopic

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Notes and References:

Martin, G. R. & Gordon, I. E. Increment-threshold spectral sensitivity in the tawny owl (Strix aluco) (1974) Vision Research, 14(8), 615-621. ISSN 0042-6989. doi:10.1016/0042-6989(74)90055-8

Hart, N. S. (2001) The Visual Ecology of Avian Photoreceptors. Progress in Retinal and Eye Research Vol. 20, No. 5, pp. 675 to 703, 2001

Bowmaker, J. K., Martin, G. R. (1977) Visual Pigments and Colour Vision in a Nocturnal Bird, Strix aluco (Tawny Owl). Vision Research, 18, pp. 1125-1130

Lind O., Mitkus M., Olsson P., Kelber A. (2013) Ultraviolet vision in birds: the importance of transparent eye media. Proc. R. Soc. B 281: 20132209. doi:10.1098/rspb.2013.2209

Warrant E.J., Nilsson D.-E. (1998) Absorption of White Light in Photoreceptors. Vision Res., Vol. 38, No. 2, pp. 195-207. PII: S0042-6989(97)00151-X

Stavenga D., Smits R.P., Hoenders B.J. (1993) Simple Exponential Functions Describing the Absorbance Bands of Visual Pigment Spectra. Vision Res. 33(8) pp. 1011-1017. doi:10.1016/0042-6989(93)90237-Q



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