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https://hdl.handle.net/1959.11/26507
Title: | Development of Meaningful Vocal Signals in a Juvenile Territorial Songbird (Gymnorhina tibicen) and the Dilemma of Vocal Taboos Concerning Neighbours and Strangers | Contributor(s): | Kaplan, Gisela (author) | Publication Date: | 2018 | Early Online Version: | 2018-11-30 | Open Access: | Yes | DOI: | 10.3390/ani8120228 | Handle Link: | https://hdl.handle.net/1959.11/26507 | Abstract: | Young territorial songbirds have calls to learn, especially calls that may be vital for maintaining territory. Territoriality is largely reinforced and communicated by vocal signals. In their natal territory, juvenile magpies (Gymnorhina tibicen) enjoy protection from predators for 8–9 months. It is not at all clear, however, when and how a young territorial songbird learns to distinguish the meaning of calls and songs expressed by parents, conspecifics, neighbours, and heterospecifics, or how territorial calls are incorporated into the juvenile’s own repertoire. This project investigated acquisition and expression of the vocal repertoire in juvenile magpies and assessed the responses of adults and juveniles to playbacks of neighbour and stranger calls inside their territory. The results reported here identify age of appearance of specific vocalisations and the limits of their expression in juveniles. One new and surprising result was that many types of adult vocalisation were not voiced by juveniles. Playbacks of calls of neighbours and strangers inside the natal territory further established that adults responded strongly but differentially to neighbours versus strangers. By contrast, juveniles needed months before paying any attention to and distinguishing between neighbour and stranger calls and eventually did so only in non-vocal ways (such as referral to adults). These results provide evidence that auditory perception not only includes recognition and memory of neighbour calls but also an assessment of the importance of such calls in the context of territoriality. | Publication Type: | Journal Article | Grant Details: | ARC/DP0452557 | Source of Publication: | Animals, 8(12), p. 1-28 | Publisher: | MDPI AG | Place of Publication: | Switzerland | ISSN: | 2076-2615 | Fields of Research (FoR) 2008: | 069999 Biological Sciences not elsewhere classified | Fields of Research (FoR) 2020: | 310301 Behavioural ecology | Socio-Economic Objective (SEO) 2008: | 970106 Expanding Knowledge in the Biological Sciences | Socio-Economic Objective (SEO) 2020: | 280102 Expanding knowledge in the biological sciences | Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
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Appears in Collections: | Journal Article School of Science and Technology |
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openpublished/DevelopmentKaplan2018JournalArticle.pdf | Published version | 6.93 MB | Adobe PDF Download Adobe | View/Open |
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