Data/hora: 25/05/2024 09:36:04

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 15/08/2000
Data da última atualização: | 31/03/2017
Autoria: | FERNANDEZ-JURICIC, E.; MARTELLA, M. B.; ALVAREZ, E. V.
Título: | Vocalizations of the blue-fronted Amazon (Amazona aestiva) in the Chancani Reserve, Cordoba, Argentina.
Ano de publicação: | 1998
Fonte/Imprenta: | Wilson Bulletin, v.110, n.3, p.352-361, 1998.
Idioma: | Inglês
Conteúdo: | The calls of the Blue-fronted Amazon (Amazona aestiva) are described and their possible function within the social organization of the species during breeding and non-breeding seasons are discussed. We identified 9 vocalizations; six ("wak-wak", "wa-wawawa", transiitons, "gu-gugu", guturals, "ka-kaka") were nonspecific and were given in several circumstances: alarm, contact, feeding, and flying. The remaining had specific contexts: "waahh" (agonistic). "grr-uip" (contact in flight), and songs (reproduction-territorial). Vocalization rates increased in alarm contexts and during the non-breeding season, probably as a result of increasing interactions between individuals. The frequency containing the greatest amount of energy was a useful variable to characterize Blue-fronted Amazon calls, particularly at the species level. The most commonly used vozalization, "wak-wak", has structural features that promote directionality and short-range transmission, enhanging its usefulness for the aggregation of individuals. It is suggested songs were derived from a process of repetition and increasing variability from gutural calls. The highly contextual variability of these calls may be due to an incompletely specialized reportoire or a vocal system based upon combinations of calls for conveying messages.
Palavras-Chave: | Amazonia aestiva; Parrot; Vocalizacao.
Thesagro: | Papagaio.
Thesaurus Nal: | Argentina; vocalization.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (45503-1) - ADC - SP - PP - SP16179 -  - 16179 - DIS