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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Helgoland marine research 11 (1964), S. 171-177 
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung 1. Wird bei der Larve vonAeschna cyanea Müll. zunächst das beim Beutefangverhalten auftretende Übersprungputzen durch häufiges Auslösen ermüdet, so nimmt die Anzahl der anschließend auslösbaren Schnappreaktionen ab mit der Zunahme der Anzahl der Übersprungputzhandlungen. 2. Für eine Erklärung reicht die Übersprunghypothese, wenn sie in zu einfacher Form oder ausschließlich herangezogen wird, nicht aus.
    Notes: Abstract Displacement preening in larvae ofAeschna cyanea is performed in the course of searching behaviour whenever a prey-dummy is suddenly removed. Experiments with a group of animals of the same age, size and origin were carried out to show whether or not there is an influence of displacement preening on the prey-catching behaviour performed afterwards. In control tests all animals showed the snapping-response to a certain dummy 700 to 900 times. After a high number of preening actions, a reduction of the snapping activity was observed. The fact that the displacement preening, in contrast to that of the autochthonous preening, influences the prey-catching activity can be interpreted by a sparking-over of the specific action potential; but one should avoid taking a too simple approach to the conception of a sparking-over by the surplus-hypothesis.
    Type of Medium: Electronic Resource
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