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    Voice of the turtle: The underwater acoustic repertoire of the long-necked freshwater turtle, Chelodina oblonga

    Access Status
    Fulltext not available
    Authors
    Giles, J.
    Davis, J.
    McCauley, Robert
    Kuchling, G.
    Date
    2009
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Giles, Jacqueline C. and Davis, Jenny A. and McCauley, Robert D. and Kuchling, Gerald. 2009. Voice of the turtle: The underwater acoustic repertoire of the long-necked freshwater turtle, Chelodina oblonga. Journal of Acoustical Society of America. 126 (1): pp. 434-443.
    Source Title
    Journal of Acoustical Society of America
    DOI
    10.1121/1.3148209
    ISSN
    00014966
    Faculty
    Centre for Marine Science and Technology (CMST)
    Faculty of Science and Engineering
    School
    Centre for Marine Science & Technology (COE)
    URI
    http://hdl.handle.net/20.500.11937/6370
    Collection
    • Curtin Research Publications
    Abstract

    Chelodina oblonga is a long-necked, freshwater turtle found predominantly in the wetlands on the Swan Coastal Plain of Western Australia. Turtles from three populations were recorded in artificial environments set up to simulate small wetlands. Recordings were undertaken from dawn to midnight. A vocal repertoire of 17 categories was described for these animals with calls consisting of both complex and percussive spectral structures. Vocalizations included clacks, clicks, squawks, hoots, short chirps, high short chirps, medium chirps, long chirps, high calls, cries or wails, hooos, grunts, growls, blow bursts, staccatos, a wild howl, and drum rolling. Also, a sustained vocalization was recorded during the breeding months, consisting of pulse sequences that finished rhythmically. This was hypothesized to function as an acoustic advertisement display. Chelodina oblonga often lives in environments where visibility is restricted due to habitat complexity or poor light transmission due to tannin-staining or turbidity. Thus the use of sound by turtles may be an important communication medium over distances beyond their visual range. This study reports the first records of an underwater acoustic repertoire in an aquatic chelonian.

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