CHUCHE, Julien; THIERY, Denis; MAZZONI, Valerio

doi:10.1007/s00114-011-0808-x

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CHUCHE, Julien
Santé et agroécologie du vignoble [UMR SAVE]

THIERY, Denis
Santé et agroécologie du vignoble [UMR SAVE]

MAZZONI, Valerio
Istituto Agrario di San Michele all'Adige [IASMA]

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The Science of Nature Naturwissenschaften. 2011, vol. 98, n° 7, p. 639-642

Springer Verlag

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Small Auchenorrhyncha use substrate-borne vibrations to communicate. Although this behaviour is well known in adult leafhoppers, so far no studies have been published on nymphs. Here we checked the occurrence of vibrational communication in Scaphoideus titanus (Hemiptera: Cicadellidae) nymphs as a possible explanation of their aggregative distributions on host plants. We studied possible vibratory emissions of isolated and grouped nymphs, as well as their behavioural responses to vibration stimuli that simulated presence of conspecifics, to disturbance noise, white noise and predator spiders. None of our synthetic stimuli or pre-recorded substrate vibrations from nymphs elicited specific vibration responses and only those due to grooming or mechanical contacts of the insect with the leaf were recorded. Thus, S. titanus nymphs showed to not use species-specific vibrations neither for intra- nor interspecific communication and also did not produce alarm vibrations when facing potential predators. We conclude that their aggregative behaviour is independent from a vibrational communication.< Leer menos

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SCAPHOIDEUS TITANUS

COMMUNICATION VIBRATOIRE

INTERACTION HÔTE-PRÉDATEUR

TEST DE CONTRÔLE

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SUBSTRATE-BORNE SIGNALS

INTRASPECIFIC INTERACTION

HOST–PREDATORY INTERACTION

PLAYBACK STIMULATION

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Do Scaphoideus titanus (Hemiptera: Cicadellidae) nymphs use vibrational communication ?

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