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	Provedor de dados Anais da ABC (AABC) (3) Autor Dabelsteen,Torben (3) Aubin,Thierry (1) Lampe,Helene M. (1) Larsen,Ole N. (1) Manthevon,Nicolas (1) Pedersen,Simon B. (1) Vielliar,Jacques M.E. (1) Mais... Palavra-chave Acoustic communication (1) Communication networks (1) Eavesdropping strategies (1) Environmental constraints (1) Evolution of communication (1) Ficedula hypoleuca (1) Hole nesting (1) Pied Flycatcher (1) Propagation-induced modifications (1) Sound degradation (1) Vocal interactions (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2004 (3) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Strategies that facilitate or counter eavesdropping on vocal interactions in songbirds Anais da ABC (AABC) Dabelsteen,Torben. Most territorial songbirds live in communication networks where eavesdropping on vocal interactions may constitute an important option for gathering information regarding the relative dominance, condition and quality of individuals being eavesdropped upon. The relatively low costs and risks of eavesdropping, together with the obvious advantages of gaining such comparative information about other individuals, predict eavesdropping to be a widespread phenomenon even though it is not necessarily advantageous for the participants to be eavesdropped upon. Special eavesdropper strategies that facilitate eavesdropping (how best to eavesdrop) may therefore have evolved together with strategies for interacting that either co-facilitate (public signaling) or counter... Tipo: Info:eu-repo/semantics/article Palavras-chave: Communication networks; Eavesdropping strategies; Vocal interactions. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000200014 Are communication activities shaped by environmental constraints in reverberating and absorbing forest habitats? Anais da ABC (AABC) Manthevon,Nicolas; Aubin,Thierry; Dabelsteen,Torben; Vielliar,Jacques M.E.. In the dense vegetation of temperate or tropical forests, communication processes are constrained by propagation-induced modifications of the transmitted sounds. The presence of leaves, trunks and branches induces important sound reverberation and absorption leading to diminution of the signal energy as well as qualitative modifications. The aim of this paper is to briefly review the different strategies used by birds to manage with these constraints. At the emitter's level, an adapted emission behavior which takes into account both the physical heterogeneities of the forest environment and the temporal variations of the acoustic constraints, is especially useful to control the active space of signaling. The coding of information into acoustic parameters... Tipo: Info:eu-repo/semantics/article Palavras-chave: Acoustic communication; Propagation-induced modifications; Environmental constraints; Evolution of communication. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000200011 Degradation of song in a species using nesting holes: the Pied Flycatcher Ficedula hypoleuca Anais da ABC (AABC) Lampe,Helene M.; Dabelsteen,Torben; Larsen,Ole N.; Pedersen,Simon B.. The habitat, but also the nest hole of a hole-nesting species, will degrade the song during transmission. We investigated how the sounds degrade in a sound transmission experiment with the song of the Pied Flycatcher Ficedula hypoleuca (Muscicapidae). Ten different song elements were transmitted to microphones placed inside and outside a nest box. On average, song degradation was much greater inside than outside the nest boxes, especially with respect to excess attenuation and blurring of the song elements. Being inside a nest box therefore strongly reduces a Pied Flycatcher's possibility of detecting and recognizing songs or eavesdropping on singing interactions. Tipo: Info:eu-repo/semantics/article Palavras-chave: Sound degradation; Hole nesting; Pied Flycatcher; Ficedula hypoleuca. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000200012 Registros recuperados: 3 Primeira ... 1 ... Última

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