Abstract:
: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.
journal_name
An Acad Bras Ciencjournal_title
Anais da Academia Brasileira de Cienciasauthors
Aubin Tdoi
10.1590/s0001-37652004000200015subject
Has Abstractpub_date
2004-06-01 00:00:00pages
279-83issue
2eissn
0001-3765issn
1678-2690pii
S0001-37652004000200015journal_volume
76pub_type
杂志文章abstract::This essay discusses the problem of the lack of dialogue between theory/empirical reality in the construction of the theoretical structure of dissertations and doctorates in Human Sciences in Brazil; taking Geography as an example, Santos (2000) observed this problem, which persists at the national level. The proposal...
journal_title:Anais da Academia Brasileira de Ciencias
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journal_title:Anais da Academia Brasileira de Ciencias
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journal_title:Anais da Academia Brasileira de Ciencias
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journal_title:Anais da Academia Brasileira de Ciencias
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journal_title:Anais da Academia Brasileira de Ciencias
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journal_title:Anais da Academia Brasileira de Ciencias
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journal_title:Anais da Academia Brasileira de Ciencias
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journal_title:Anais da Academia Brasileira de Ciencias
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