Publikationsdatum:
2011-06-12
Beschreibung:
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. Content Type Journal Article Pages 1-4 DOI 10.1007/s00114-011-0808-x Authors Julien Chuche, UMR INRA 1065 Santé et Agroécologie du Vignoble, INRA, BP 81, Institut des Sciences de la Vigne et du Vin, 33883 Villenave d’Ornon Cedex, France Denis Thiéry, UMR INRA 1065 Santé et Agroécologie du Vignoble, INRA, BP 81, Institut des Sciences de la Vigne et du Vin, 33883 Villenave d’Ornon Cedex, France Valerio Mazzoni, IASMA Research and Innovative Centre, Fondazione Edmund Mach, Via E. Mach 1, I-38010 SanMichele a/A (TN), Italy Journal Naturwissenschaften Online ISSN 1432-1904 Print ISSN 0028-1042
Print ISSN:
0028-1042
Digitale ISSN:
1432-1904
Thema:
Biologie
,
Chemie und Pharmazie
,
Allgemeine Naturwissenschaft
