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Hearing in honeybees: the mechanical response of the bee's antenna to near field sound
Authors:W H Kirchner
Institution:(1) Universität Würzburg, Theodor-Boveri-Institut für Biowissenschaften, Lehrstuhl für Verhaltensphysiologie und Soziobiologie, Am Hubland, D-97074 Würzburg, Germany
Abstract:In the dance language, honeybees use airborne near field sound signals to inform their nestmates of the location of food sources. In behavioral experiments it has recently been shown that Johnston's organ, a chordotonal organ located in the pedicel of the antenna, is used to perceive these sound signals. In the present study the mechanical response of the antennal flagellum to stimulation with near field sound signals was investigated using laser vibrometry. The absolute amplitudes of antennal deflection with acoustical stimulation, the response to sounds of different displacement and velocity amplitudes, the shape of movement of the flagellum, the mechanical frequency response and the mechanical directional sensitivity of the auditory sense organ of the honeybee are described. Using pulsed stimuli simulating the dance sounds it is shown that the temporal pattern of the dance sound is resolved on the level of antennal vibrations.
Keywords:Apis mellifera  Auditory sense  Near field sound  Antenna  Johnston's organ
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