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Final published version
Short first click intervals in echolocation trains of three species of deep diving odontocetes. / Dunn, Charlotte; Tyack, Peter Lloyd; Miller, Patrick; Rendell, Luke Edward.
In: Journal of the Acoustical Society of America, Vol. 141, No. 2, 02.2017, p. 900-907.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Short first click intervals in echolocation trains of three species of deep diving odontocetes
AU - Dunn, Charlotte
AU - Tyack, Peter Lloyd
AU - Miller, Patrick
AU - Rendell, Luke Edward
N1 - LR and PT were supported by the Marine Alliance for Science and Technology for Scotland (MASTS) pooling initiative and their support is gratefully acknowledged. MASTS is funded by the Scottish Funding Council (grant reference HR09011) and contributing institutions.
PY - 2017/2
Y1 - 2017/2
N2 - All odontocetes produce echolocation clicks as part of their vocal repertoire. In this paper we analysed inter-click-intervals in recordings from suction cup tags with a focus on the first inter-click interval of each click train. We refer to shorter first inter-click intervals as short first intervals (SFIs). We found that the context of SFI occurrence varies across three deep-diving species. In Blainville’s beaked whales, 87% of click trains that were preceded by a terminal buzz started with SFIs. In Cuvier’s beaked whales, only sub-adult animals produced notable amounts of SFIs. In contrast, sperm whales were much more likely to produce SFIs on the first click train of a dive. While the physiological and/or behavioural reasons for SFI click production are unknown, species differences in their production could provide a window into the evolution of odontocete echolocation.
AB - All odontocetes produce echolocation clicks as part of their vocal repertoire. In this paper we analysed inter-click-intervals in recordings from suction cup tags with a focus on the first inter-click interval of each click train. We refer to shorter first inter-click intervals as short first intervals (SFIs). We found that the context of SFI occurrence varies across three deep-diving species. In Blainville’s beaked whales, 87% of click trains that were preceded by a terminal buzz started with SFIs. In Cuvier’s beaked whales, only sub-adult animals produced notable amounts of SFIs. In contrast, sperm whales were much more likely to produce SFIs on the first click train of a dive. While the physiological and/or behavioural reasons for SFI click production are unknown, species differences in their production could provide a window into the evolution of odontocete echolocation.
U2 - 10.1121/1.4976084
DO - 10.1121/1.4976084
M3 - Article
VL - 141
SP - 900
EP - 907
JO - Journal of the Acoustical Society of America
JF - Journal of the Acoustical Society of America
SN - 0001-4966
IS - 2
ER -
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ID: 249311130