期刊
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS
卷 76, 期 2, 页码 279-283出版社
ACAD BRASILEIRA DE CIENCIAS
DOI: 10.1590/S0001-37652004000200015
关键词
communication in noise; sound localization; vocal recognition; penguins
Penguins identify their mate or chick by an acoustic signal, the display call. This identification is realized in a particularly constraining environment: the noisy world of a colony of thousands of birds. To fully understand how birds solve this problem of communication, we have done observations, acoustic analysis, propagation and playback experiments with 6 species of penguins studied in the field. According to our results, it appears that penguins use a particularly efficient anti-confusion and anti-noise coding system, allowing a quick identification and localization of individuals on the move in a noisy crowd.
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