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The anuran vocal sac: a tool for multimodal signalling

Starnberger, Iris ; Preininger, Doris ; Hödl, Walter

Animal behaviour, 2014-11, Vol.97, p.281-288 [Periódico revisado por pares]

England: Elsevier Ltd

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  • Título:
    The anuran vocal sac: a tool for multimodal signalling
  • Autor: Starnberger, Iris ; Preininger, Doris ; Hödl, Walter
  • Assuntos: Animal behavior ; Animal communication ; Anura ; Behavioral biology ; Caudata ; chemical signal ; Frogs ; functional morphology ; multimodal signals ; Salamandridae ; Special Issue: Biochemistry & Animal Communication ; visual signal ; vocal sac diversity
  • É parte de: Animal behaviour, 2014-11, Vol.97, p.281-288
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
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  • Descrição: Although in anurans the predominant mode of intra- and intersexual communication is vocalization, modalities used in addition to or instead of acoustic signals range from seismic and visual to chemical. In some cases, signals of more than one modality are produced through or by the anuran vocal sac. However, its role beyond acoustics has been neglected for some time and nonacoustic cues such as vocal sac movement have traditionally been seen as an epiphenomenon of sound production. The diversity in vocal sac coloration and shape found in different species is striking and recently its visual properties have been given a more important role in signalling. Chemosignals seem to be the dominant communication mode in newts, salamanders and caecilians and certainly play a role in the aquatic life phase of anurans, but airborne chemical signalling has received less attention. There is, however, increasing evidence that at least some terrestrial anuran species integrate acoustic, visual and chemical cues in species recognition and mate choice and a few secondarily mute anuran species seem to fully rely on volatile chemical cues produced in glands on the vocal sac. Within vertebrates, frogs in particular are suitable organisms for investigating multimodal communication by means of experiments, since they are tolerant of disturbance by observers and can be easily manipulated under natural conditions. Thus, the anuran vocal sac might be of great interest not only to herpetologists, but also to behavioural biologists studying communication systems. •Our view of anuran communication has changed drastically during the last few decades.•Anurans use diverse communication strategies often directly related to the vocal sac.•Distinctive vocal sac shapes, sizes and colours suggest functional diversity.•Evidence increases that the vocal sac also plays a role in chemical signalling.•The anuran vocal sac may be of great interest for studies on communication systems.
  • Editor: England: Elsevier Ltd
  • Idioma: Inglês
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