The influence of substrate on male responsiveness to the female calling song in Nezara viridula

Citation
N. Miklas et al., The influence of substrate on male responsiveness to the female calling song in Nezara viridula, J INSECT B, 14(3), 2001, pp. 313-332
Citations number
28
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Entomology/Pest Control
Journal title
JOURNAL OF INSECT BEHAVIOR
ISSN journal
0892-7553 → ACNP
Volume
14
Issue
3
Year of publication
2001
Pages
313 - 332
Database
ISI
SICI code
0892-7553(200105)14:3<313:TIOSOM>2.0.ZU;2-W
Abstract
The female calling song (FCS) of the southern green stink bug Nezara viridu la is composed of vibrational pulse trains that include either short pulses and a long pulse (FCS-1) or just short pulses (FCS-2). Their function in c ommunication was studied by investigating male vibratory responses to natur al and artificial signals on artificial and natural substrates. On a loudsp eaker membrane, FCS-1 triggered in males from a Slovene and a French popula tion significantly more courtship songs (MCrS) than FCS-2 Experiments with artificial signals showed that male responses are modulated by the duration of pulse trains and pulse repetition time. On a bean plant, males of both populations responded in the same way to the two types of female calling so ng pulse trains Moreover a laser vibrometer study of the transmission of di fferent natural and artificial vibratory signals through the bean plant sho wed that the pulses of a high repetition rate ave prolonged and fused at di stances from the emitter. We conclude that female calling song pulse trains of different temporal structure have the same function in vibrational comm unication of the species. The temporal and spectral structures of the femal e calling songs of N. viridula are discussed in terms of effective transmis sion through plants.