| Vertical transmission of learned signatures in a wild parrot. | |
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MedLine Citation:
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PMID: 21752824 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Learned birdsong is a widely used animal model for understanding the acquisition of human speech. Male songbirds often learn songs from adult males during sensitive periods early in life, and sing to attract mates and defend territories. In presumably all of the 350+ parrot species, individuals of both sexes commonly learn vocal signals throughout life to satisfy a wide variety of social functions. Despite intriguing parallels with humans, there have been no experimental studies demonstrating learned vocal production in wild parrots. We studied contact call learning in video-rigged nests of a well-known marked population of green-rumped parrotlets (Forpus passerinus) in Venezuela. Both sexes of naive nestlings developed individually unique contact calls in the nest, and we demonstrate experimentally that signature attributes are learned from both primary care-givers. This represents the first experimental evidence for the mechanisms underlying the transmission of a socially acquired trait in a wild parrot population. |
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Authors:
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Karl S Berg; Soraya Delgado; Kathryn A Cortopassi; Steven R Beissinger; Jack W Bradbury |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-7-13 |
Journal Detail:
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Title: Proceedings. Biological sciences / The Royal Society Volume: - ISSN: 1471-2954 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-7-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101245157 Medline TA: Proc Biol Sci Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Cornell Laboratory of Ornithology, Ithaca, NY 14850, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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