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Thermoregulatory function of the parietal eye in the lizard Anolis carolinensis

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Summary

Animals were acclimitized to a daily cycle of 15–25°C and a photoperiod of LD 12:12. Parietalectomized animals in an experimental thermal gradient (15°C–40°C, LD 12:12) selected significantly higher temperatures than controls at all hours of the day except from 0800–1200. These results suggest that the lizard parapineal plays a direct role in thermoregulation in addition to the indirect function as an illuminometer.

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References

  • Cowles, R. B., Burleson, G. L.: The sterilizing effect of high temperature on the male germ-plasma of the yucca night lizard, Xantusia vigilis. Amer. Nat. 79, 417–435 (1945)

    Google Scholar 

  • Duncan, O. B.: Multiple range and multiple F tests. Biometrics 11, 1–42 (1955)

    Google Scholar 

  • Eakin, R. M.: A third eye. Sci. Amer. 58, 73–79 (1970)

    Google Scholar 

  • Glaser, R.: Increase in locomotor activity following shielding of the parietal eye in night lizards. Science 128, 1577–1578 (1958)

    Google Scholar 

  • Hutchison, V. H., Ferrance, M. A.: Thermal tolerances of Rana pipiens acclimated to daily temperature cycles. Herpetologica 26, 1–8 (1970)

    Google Scholar 

  • Kosh, R. J., Hutchison, V. H.: Thermal tolerances of parietalectomized Anolis carolinensis acclimatized at different temperatures and photoperiods. Herpetologica 28, 183–191 (1972)

    Google Scholar 

  • Packard, G. C., Packard, M. J.: Photic exposure of the lizard Callisaurus draconoides following shielding of the parietal eye. Copeia 1972, 695–701 (1972)

    Google Scholar 

  • Regal, P. J.: Voluntary hypothermia in reptiles. Science 155, 1551–1553 (1967)

    Google Scholar 

  • Stebbins, R. C.: The effect of parietalectomy on testicular activity and exposure to light in the desert night lizard (Xantusia vigilis). Copeia 1970, 261–270 (1970)

    Google Scholar 

  • Stebbins, R. C., Eakin, R. M.: The role of the “third eye” in reptilian behavior. Amer. Mus. Novit. 1870, 1–40 (1958)

    Google Scholar 

  • Stebbins, R. C., Lowenstein, J. M., Cohen, N. W.: A field study of the lava lizard (Tropidurus albemarlensis) in the Galapagos Islands. Ecology 48, 839–851 (1967)

    Google Scholar 

  • Stebbins, R. C., Wilhoft, D. C.: Influence of the parietal eye on anxiety in lizards, p. 258–268. In: A. S. Bowman, Ed., The Galapagos. Proceedings of the Symposia of the Galapagos International Scientific Project. Berkeley: University of Calif. Press 1966

    Google Scholar 

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Hutchison, V.H., Kosh, R.J. Thermoregulatory function of the parietal eye in the lizard Anolis carolinensis . Oecologia 16, 173–177 (1974). https://doi.org/10.1007/BF00345581

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  • DOI: https://doi.org/10.1007/BF00345581

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