Summary
An attempt was made to test the sensitivity of homing pigeons to weak magnetic variations of the order of the ones naturally occuring on earth. Pigeons were first subjected to a cardiac orienting reflex test to 50 magnetic stimuli and to 50 control stimuli presented alone and randomly interdigitated. They were then subjected to a differential nociceptive conditioning procedure using the same magnetic and control stimuli for 100 trials under each stimulus condition. Cardiac activity was used as an index of reactivity throughout the study. The tests were performed in uniform magnetic fields using 1 m diameter Helmholtz coils. Results indicate that the magnetic stimuli presentations did not evoke a cardiac orienting reflex when compared to the cardiac orienting response of control pigeons to a neutral luminous stimulus. Moreover, results from the conditioning tests indicate that the magnetic stimuli were not used by the pigeons as a cue presaging the forthcoming shock. It is concluded that, in the present experimental situation, homing pigeons did not respond to small changes in the ambiant magnetic field with changes in autonomic functioning. Results are discussed in the context of the inappropriateness of the stimuli and tests used to show magnetic sensitivity in birds.
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References
Barnothy, M.F.: Biological effects of magnetic fields, Vol. I. New York: Plenum Press 1964
Bochenski, Z., Dylewska, M., Gieszczykiewicz, J., Sych, L.: Homing experiments on birds: XI-Experiments with swallowsHirundo rustica concerning the influence of earth magnetism and partial eclipse of the sun on their orientation. Zesk. Nauk. W.J. Zool.5, 125–130 (1960)
Brown, F.A.: Response of the planarian,Dugesia, and the protozoan,Paramecium, to very weak horizontal magnetic fields. Biol. Bull.123, 264–281 (1962)
Brown, F.A.: Some orientational influences of nonvisual terrestrial electromagnetic fields. Ann. N.Y. Acad. Sci.188, 224–241 (1971)
Cohen, D.H., MacDonald, R.L.: Some variables affecting orienting and conditioned heart-rate responses in the pigeon. J. comp. physiol. Psychol.74, 123–133 (1971)
Cohen, D.H., Pitts, L.H.: Vagal and sympathetic components of conditioned cardio-acceleration in the pigeon. Brain Res.9, 15–31 (1968)
Eldarov, A.L., Kholodov, Y.A.: The effect of a constant magnetic field on the motor activity of birds. Zh. Obschch. Biol.25, 224–229 (1964)
Emlen, S.T.: The influence of magnetic information on the orientation of the Indigo BuntingPasserina cyanea. Anim. Behav.18, 215–224 (1970)
Keeton, W.T.: Effects of magnets on pigeon homing. In: Animal orientation and navigation (S.R. Galler, K. Schmidt-Koenig, G.J. Jacobs, R.E. Belleville, eds.), NASA SP-262, pp. 579–594. Washington: U.S. Gov. Printing Office 1972
Keeton, W.T.: The mystery of pigeon homing. Sci. Amer.231, 96–107 (1974a)
Keeton, W.T.: The orientational and navigational basis of homing in birds. In: Advances in the study of behavior (Lehrman, D.S., Rosenblath, J.S., Hinde, R.A., Shaw, Evelyn, eds.), Vol. 5, pp. 48–132. New York: Academic Press 1974b
Kreithen, M.L., Keeton, W.T.: Attempts to condition homing pigeons to magnetic stimuli. J. comp. Physiol.91, 355–362 (1974)
Martin, H., Lindauer, M.: Orientierung im Erdmagnetfeld, Fortschr. Zool. (Stuttg.)21, 211–228 (1973)
Matthews, G.V.T.: The experimental investigation of navigation in homing pigeons. J. exp. Biol.28, 508–536 (1951)
Menaker, M., Oksche, A.: The avian pineal organ. In: Avian biology (Farner, D.S., King, J.R., eds.), Vol. IV, pp. 79–118. New York: Academic Press 1974
Meyer, M.E., Lambe, D.R.: Sensitivity of the pigeon to changes in the magnetic field. Psychon. Sci.5, 349–350 (1966)
Orgel, A.R., Smith, S.C.: Test of the magnetic theory of homing. Science120, 891–892 (1954)
Ratner, S.C., Jennings, J.W.: Magnetic fields and orienting movements in mollusks. J. comp. physiol. Psychol.65, 365–368 (1968)
Reille, A.: Essai de mise en évidence d'une sensibilité du pigeon au champ magnétique à l'aide d'un conditionnement nociceptif. J. Physiol. (Paris)60, 85–92 (1968)
Schneider, F.: Systematische Variationen in der elektrischen, magnetischen und geographisch-ultraoptischen Orientierung des Maikäfers. Viert. Naturf., Ges. Zürich108, 373–416 (1963)
Shettleworth, Sara J.: Constraints on learning. In: Advances in the study of behavior (Lehrman, D.S., Hinde, R.A., Shaw, E., eds.), Vol. 4, pp. 1–68. New York: Academic Press 1972
Shumakov, M.E.: Experiments to determine the possibility of magnetic orientation in birds. In: Questions in Bionics (Moscow) 519–523 (1967)
Southern, W.E.: Influence of disturbances in the earth's magnetic field on Ring-billed Gull orientation. Amer. Zool.10, 23 (1970)
Southern, W.E.: Magnets disrupt the orientation of juvenile ring-billed gulls. Bio-Science22, 476–479 (1972)
Tobin, M., Djoleto, B.D., Milkman, N., Kerr, J., Williams, T.A., Khachaturian, Z., Schachter, J.: The R Peak detector and R-R interval counter: A new interface to the PDP-12 computer for on line analysis and processing of heart rate data. Proceedings of the DECUS Spring Symposium, pp. 265–271, 1970
Walcott, C., Green, R.: Orientation of homing pigeons altered by a change in the direction of an applied magnetic field. Science184, 180–182 (1974)
Wells, M.J.: Learning and movement in octopuses. Anim. Behav. Suppl.1, 115–128 (1964)
Wilson, R.S.: Cardivar: The statistical Analysis of Heart Rate Data. Psychophysiology11, 76–85 (1974)
Wiltschko, W.: About the influence of magnetic total intensity and inclination on directions preferred by migrating European Robins (Erithacus rubecula). In: Animal orientation and Navigation (Galler, S.R., Schmidt-Koenig, K., Jacobs, G.S., Belleville, R.E., eds.), pp. 569–578, NASA, SP-262. Washington: U.S. Gov. Printing Office 1972
Wiltschko, W.: Der Magnetkompaß der Gartengrasmücken (Sylvia borin). J. Ornithol.115, 1–7 (1974)
Wiltschko, W., Merkel, F.W.: Zugorientierung von Dorngrasmücken (Sylvia communis) im Erdmagnetfeld. Vogelwarte26, 245–249 (1971)
Wiltschko, W., Wiltschko, R.: Magnetic compass of European robins. Science176, 62–64 (1972)
Wiltschko, W., Wiltschko, R.: The Interaction of Stars and Magnetic Field in the Orientation System of Night Migrating Birds: I. Autumn Experiments with European Warblers (Gen. Sylvia). Z. Tierpsychol.37, 337–355 (1975a)
Wiltschko, W., Wiltschko, R.: The Interaction of Stars and Magnetic Field in the Orientation System of Night Migrating Birds: II. Spring Experiments with European Robins (Erithacus rubeculd). Z. Tierpsychol.39, 265–282 (1975b)
Yeagley, H.L.: A preliminary study of a physical basis of bird navigation. J. appl. Physics18, 1035–1063 (1947)
Yeagley, H.L.: A preliminary study of a physical basis of bird navigation: part II. J. appl. Physics22, 746–760 (1951)
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This research was carried out as part of a doctoral dissertation in the Département de Psychologie at the Université de Louvain (Belgique). The author is indebted to Professor G. Thinès, Director of the Centre de Psychologie Expérimentale et Comparée of the Université de Louvain for his guidance and encouragement as dissertation adviser. We would also like to express our appreciation to Dr. A. Vandenplass, director of the Institut Royal Metéorologique de Belgique and the Fédération Royale Colombophile de Belgique and to Professor J.L. Koenigsfeld from the University of Liège for their interest and cooperation in this research. Dr. Marco Citta and Louis Laurencelle gave computer assistance and Francois Labelle made the technical drawings. This research was supported by the Centre de Psychologie Expérimentale et Comparée and the Fédération Royale Colombophile de Belgique and made possible by a special leave of absence granted to the author by the Université du Québec à Montréal.
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Beaugrand, J.P. An attempt to confirm magnetic sensitivity in the pigeon,Columba livia . J. Comp. Physiol. 110, 343–355 (1976). https://doi.org/10.1007/BF00659150
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DOI: https://doi.org/10.1007/BF00659150