Abstract
The visual pigments and oil droplets in the retina of the diurnal gecko Gonatodes albogularis were examined microspectrophotometrically, and the spectral sensitivity under various adapting conditions was recorded using electrophysiological responses. Three classes of visual pigments were identified, with λmax at about 542, 475, and 362 nm. Spectral sensitivity functions revealed a broad range of sensitivity, with a peak at approximately 530–540 nm. The cornea and oil droplets were found to be transparent across a range from 350–700 nm, but the lens absorbed short wavelength light below 450 nm. Despite the filtering effect of the lens, a secondary peak in spectral sensitivity to ultraviolet wavelengths was found. These results suggest that G. albogularis does possess the visual mechanisms for discrimination of the color pattern of conspecifics based on either hue or brightness. These findings are discussed in terms of the variation in coloration and social behavior of Gonatodes.
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Abbreviations
- ERG :
-
electroretinogram
- MSP :
-
microspectrophotometry
- UV :
-
ultraviolet
- λmax :
-
wavelength of maximum absorbance
References
Arden GB, Tansley K (1962) The electroretinogram of a diurnal gecko. J Gen Physiol 45: 1145–1161
Bennett ATD, Cuthill IC, Norris KJ (1994) Sexual selection and the mismeasure of color. Am Nat 144: 848–860
Butcher GS, Rohwer S (1989) The evolution of conspicuous and distinctive coloration for communication in birds. Curr Ornithol 6: 51–107
Cooper WE, Jr., Greenberg N (1992) Reptilian coloration and behavior. In: Gans C, Crews D (eds) Hormones, brain, and behavior. Biology of the Reptilia, vol 18, Physiology E. University of Chicago Press, Chicago, pp 298–422
Crawford MLJ, Andersen RA, Blake R, Jacobs GH, Neumeyer C (1990) Interspecies comparisons in the understanding of human visual perception. In: Spillman L, Werner JS (eds) Visual perception: the neurophysiological foundations. Academic Press, New York, pp 23–52
Crescitelli F (1965) The spectral sensitivity and visual pigment content of the retina of Gekko gekko. In: Ciba Foundation Symposium. Colour vision, physiology and experimental psychology. Churchill, London, pp 301–324
Crescitelli F (1966) The spectral sensitivity of the gecko eye in relation to the state of adaptation. Vision Res 6: 129–142
Crescitelli F, Dartnall HJA, Loew ER (1977) The gecko visual pigments: A microspectrophotometric study. J Physiol (Lond) 268: 559–573
Ellingson JM (1994) Natural and sexual selection on coloration in the diurnal gecko Gonatodes albogularis. PhD dissertation, University of Texas at Austin
Endler JA (1990) On the measurement and classification of colour in studies of animal colour patterns. Biol J Linn Soc Lond 41: 315–352
Endler JA (1991) Variation in the appearance of guppy color patterns to guppies and their predators under different visual conditions. Vision Res 31: 587–608
Endler JA (1992) Signals, signal condition, and the direction of evolution. Am Nat 139: s125-s153
Fleishman LJ, Loew ER, Leal M (1993) Utraviolet vision in lizards. Nature 365: 397
Govardovskiî VI, Zueva LV, Lychakov DV (1984) Microspectrophotometric study of visual pigments in five species of geckos. Vision Res 24: 1421–1423
Hailman JP (1977) Optical signals: Animal communication and light. Indiana University Press, Bloomington
Hárosi FI (1985) Ultraviolet-and violet-absorbing vertebrate visual pigments: Dichroic and bleaching properties. In: Fien A, Levine JS (eds) The visual system. Liss, New York, pp 41–55
Hover EL (1985) Differences in aggressive behavior between two throat color morphs in a lizard, Urosaurus ornatus. Copeia 1985: 933–940
Jacobs GH (1992) Ultraviolet vision in vertebrates. Am Zool 32: 544–554
Jacobs GH, Neitz J (1986) Spectral mechanisms and color vision in the tree shrew (Tupaia belangeri). Vision Res 26: 291–298
Loew ER (1994) A third, ultraviolet-sensitive, visual pigment in the Tokay Gecko (Gekko gekko). Vision Res 34: 1427–1431
MacNichol EF Jr (1986) A unifying presentation of photopigment spectra. Vision Res 26: 1543–1556
Mansfield RJW (1985) Primate photopigments and cone mechanisms. In: Fein A, Levine JS (eds) The visual system. Liss, New York, pp 89–106
Muntz WRA (1972) Inert absorbing and reflecting pigments. In: Dartnall HJA (ed) Handbook of sensory physiology, Vol VII/1. Springer, Berlin Heidelberg New York, pp 529–565
Press WH, Flannery BP, Teukolsky SA, Vetterling WT (1989) Numerical recipes in Pascal. Cambridge University Press, Cambridge
Rivero-Blanco C (1979) The neotropical lizard genus Gonatodes Fitzinger (Sauria: Sphaerodactylinae). PhD dissertation, Texas A&M University
Ryan MJ, Keddy-Hector A (1992) Directional patterns of female mate choice and the role of sensory biases. Am Nat 139: s4-s35
Stamps JA (1977) Social behavior and spacing patterns in lizards. In: Gans C, Tinkle DW (eds) Biology of the Reptilia, vol. 7, ecology and behavior A. Academic Press, London, pp 265–334
Tansley K (1961) The retina of a diurnal gecko Phelsuma madagascariensis longinsulae. Pflügers Arch 272: 262–269
Thompson CW, Moore MC (1991) Throat colour reliably signals status in male tree lizards, Urosaurus ornatus. Anim Behav 42: 745–753
Underwood G (1951) Reptilian retinas. Nature 167: 183–185
Underwood G (1970) The eye. In: Gann P, Parsons TS (eds) Biology of the reptilia, vol 2: Morphology B. Academic Press, New York, pp 1–97
Zucker N (1989) Dorsal darkening and territoriality in a wild population of the tree lizard, Urosaurus ornatus. J Herpetol 23: 389–398
Zucker N (1994) A dual status-signalling system: a matter of redundancy or differing roles? Anim Behav 47: 15–22
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Ellingson, J.M., Fleishman, L.J. & Loew, E.R. Visual pigments and spectral sensitivity of the diurnal gecko Gonatodes albogularis . J Comp Physiol A 177, 559–567 (1995). https://doi.org/10.1007/BF00207185
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DOI: https://doi.org/10.1007/BF00207185