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An Experimental Bioacoustic Analysis of Mating and Territorial Calls of the Frog Rana ridibunda

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Abstract:

Mating and territorial calls of the water frog Rana ridibunda in a population inhabiting northern Greece were analysed bioacoustically. The mating calls of R. ridibunda consist of 3 — 7 pulse groups. The harmonic content of the mating calls was found by spectrum and contour spectrum analysis. The first formant frequency is around 2750 Hz, the second at 5000 Hz and the third at 7500 Hz. The fundamental (laryngeal) frequency is at 100 — 150 Hz. Three energy maxima were localized in the power spectrum of the territorial calls of R. ridibunda and their content is also harmonic. Transitional states between territorial calls were not found.

Zusammenfassung

Es wurden Paarungs- und Revierrufe des Wasserfrosches Rana ridibunda einer im nördlichen Griechenland beheimateten Population bioakustisch untersucht. Die Paarungsrufe von Rana ridibunda bestehen aus drei bis sieben Impulsgruppen. Ihr harmonischer Gehalt wurde aus der Untersuchung des Spektrums und seiner Kontur erhalten. Die erste Formantfrequenz liegt bei 2750 Hz, die zweite bei 5000 und dritte bei 7500 Hz. Die Grundfrequenz (Stimmbandfrequenz) beträgt etwa 100 — 150 Hz. Im Leistungsspektrum der Revierrufe von Rana ridibunda wurden drei Energiemaxima festgestellt, es ist ebenfalls von harmonischer Struktur. Zwischenzustände wurden bei Revierrufen nicht festgestellt.

Sommaire

Une analyse bioacoustique a été effectuée sur des signaux d'appel de partenaire et territoriaux de la grenouille d'eau Rana ridibunda que l'on trouve dans le nord de la Grèce. Les signaux d'appel de partenaire sont caractérisés par des groupes de 3 à 7 impulsions. Une analyse spectrale détaillée de ces signaux montre qu'ils sont constitutés d'une fondamentale (laryngée) à 100 — 150 Hz, et de trois formants: le premier au voisinage de 2750 Hz, le second à 5000 Hz et le troisième à 7500 Hz. Les spectres de puissance des appels territoriaux de la Rana ridibunda présentient trois maximums, et leur contenu est également harmonique. Il n'a pas été trouvé d'etats de transition entre les appels territoriaux.

Document Type: Research Article

Publication date: June 1, 1992

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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