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Chemotesting Movements and Chemosensory Sensitivity to Amino Acids in the European Pond Turtle, Emys Orbicularis L.

  • Yurii Manteifel
  • Natalia Goncharova
  • Vera Boyko

Abstract

The European pond turtle Emys orbicularis is an amphibious animal detecting and locating food by chemoreception both on land and in water (Honigmann, 1921). This turtle makes regular low-amplitude movements of the lower jaw that promote the propulsion of water to chemoreceptors within the nasal and oral cavities which may be regarded as stimulus acquisition behavior after the terminology of Atema (1987). de term these movements “jaw testing movements” (JTM). Various changes in the sensory medium and the animal’s emotional state elicit an increase of the JTM frequency which serves as an indicator of chemosensory perception of stimuli. In this study, we examined the reaction of Emys orbicularis to some L-amino acids. Such agents are effective stimuli for chemoreceptor3 of most aquatic animals and are generally found in the aquatic medium (Bardach, 1975).

Keywords

Test Stimulus Reproductive Behavior Stimulus Effect Differential Threshold Stimulus Concentration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Atema, J., 1987, Distribution of chemical stimuli, in: Sensory Biology of Aquatic Animals, J. Atema, R.R. Fay, A.N. Popper and W.H. Tavolga, eds, Springer-Verlag, New York.Google Scholar
  2. Bardach, J.E., 1975, Chemoreception of aquatic animals, in: Olfaction and Taste, Vol. V, D.A. Denton and J.P. Coghlan, eds., Academic Press, New York.Honigmann, H., 1921, Zur Biologie der Schildkrite, Biol. Zentralblatt, 41:241.Google Scholar
  3. Jorgensen, N.O.G., 1986, Fluxes of free amino acids in three Danish lakes, Freshwater Biol. 16: 255.Google Scholar
  4. Manteifel, Yu.B., and Boyko, V.P., 1987, Comparative evaluation of sensitivity of different chemoreceptor systems of Emys orbicularis, Sensory Systems 1:22 (in Russ.).Google Scholar
  5. Zygmuntova, J., 1972, Occurence of free amino acids in pond water, Acta hydrobiol. 14: 317.Google Scholar

Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • Yurii Manteifel
    • 1
  • Natalia Goncharova
    • 1
  • Vera Boyko
    • 1
  1. 1.A.N. Severtzov Institute of Evolutionary Animal Morphology and EcologyRussian Academy of SciencesMoscowRussia

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