[Top] [All Lists]

New bioacoustic article in Acta Zoologica

Subject: New bioacoustic article in Acta Zoologica
From: "Sonja Amoser" <>
Date: Wed, 19 Jan 2011 21:52:16 +0100
Guillermo S. Natale, Leandro Alcalde, Raul Herrera, Rodrigo Cajade, Eduardo
F. Schaefer, Federico Marangoni and Vance L. Trudeau (2010): Underwater
acoustic communication in the macrophagic carnivorous larvae of Ceratophrys
ornata (Anura: Ceratophryidae). Acta Zoologica, 92(1), 46-53.

Abstract: We provide the first evidence for sound production by anuran
larvae. In this study, we describe the sounds, their context-specific
emission and the structures related to sound production of the carnivorous
larvae of Ceratophrys ornata (Amphibia, Anura, Ceratophryidae). Tadpoles
emit a brief, clear and very audible metallic-like sound that consists of a
short train of notes that occur at all stages of larval development.
Tadpoles make sound only when a conspecific tadpole is preying upon it or
when touched by an object. Ceratophrys ornata larvae possess the basic
required anatomical structures for sound production via expulsion of
atmospheric air from the lungs through the open soft-tissue glottis. The
glottis is opened and closed via the larval laryngeal muscles (constrictor
laryngis and dilatator laryngis). The arytenoid cartilages appear at stage
40 and the cricoid cartilage does at stage 43. Adult laryngeal muscles
differentiate from the larval ones at stage 46 together with the vocal sac
formation from the adult interhyoideus muscle. We demonstrate (n = 2160
conspecific predator?prey interactions) that larval sounds occur always
under predatory attack, probably serving to diminish the chances of
cannibalism. These data raise the possibility that other macrophagic
carnivorous anuran larvae may produce sound.

For reprints please contact Guillermo S. Natale (email:

Kind regards

Sonja Amoser

Dr. Sonja Amoser
Steinrieglstraße 286
3400 Weidlingbach

<Prev in Thread] Current Thread [Next in Thread>
  • New bioacoustic article in Acta Zoologica, Sonja Amoser <=

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the Bioacoustics-L mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU