Picking a Route: Do Toads Follow Rules or Make Plans?

  • Thomas S. Collett
Part of the NATO Advanced Science Institutes Series book series (NSSA, volume 56)


Animals move through their environment, sometimes just exploring, but more often aiming at a specific goal, such as their next meal. Frequently they will come across obstacles strewn in their path, and to a greater or lesser degree they have developed strategies which enable them to avoid falling into holes or bumping into boulders. Indeed, often they do more than just stop short at such obstacles, they detour economically round them. At times they operate in such familiar surroundings that they have learnt the appropriate path to take when going from one point to another, and there are a number of examples of animals which then continue to make detours long after the barrier which first made the detour necessary has been removed (von Uexküll, 1957).


Real Size Bufo Bufo Wooden Dowel Familiar Surrounding Picket Fence 
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  1. Collett, T.S., 1982, Do toads plan routes? A study of the detour behaviour of Bufo viridis. J. Comp. Physiol., (in press).Google Scholar
  2. Ewert, J.P., and Gebauer, L., 1973, Größenkonstanzphänomene im Beutefangverhalten der Erdkröte (Bufo bufo L.). J. Comp. Physiol., 85:303–315.CrossRefGoogle Scholar
  3. Ingle, D.J., 1971, Prey-catching behaviour of anurans toward moving and stationary objects. Vision Res., (Suppl.) 3:447–456.PubMedCrossRefGoogle Scholar
  4. Ingle, D., 1976, Spatial vision in anurans, in “The Amphibian Visual System — A Multidisciplinary Approach”, K.V. Fite, ed., Academic Press, New York.Google Scholar
  5. Ingle, D., and Cook, J., 1977, The effect of viewing distance upon size preference of frogs for prey. Vision Res., 17:1009–1013.PubMedCrossRefGoogle Scholar
  6. Lock, A., and Collett, T., 1979, A toad’s devious approach to its prey: A study of some complex uses of depth vision. J. Comp. Physiol., 131:179–189.CrossRefGoogle Scholar
  7. Lock, A., and Collett, T., 1980, The three-dimensional world of a toad. Proc. R. Soc. Lond. B, 206:481–487.CrossRefGoogle Scholar
  8. Thomson, J.A., 1980, How do we use visual information to control locomotion? TINS, 3:247–250.Google Scholar
  9. Uexküll, J.v., 1957, A stroll through the worlds of animals and men, in “Instinctive Behaviour”, C.H. Schiller, ed., Methuen Press, London.Google Scholar

Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • Thomas S. Collett
    • 1
  1. 1.School of Biological SciencesUniversity of SussexFalmer, Brighton, SussexUK

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