Killer whales (Orcinus orca) produce ultrasonic whistles

Samarra, Filipa I.P., Deecke, Volker B., Vinding, Katja, Rasmussen, Marianne H., Swift, René J. and Miller, Patrick J.O. (2010) Killer whales (Orcinus orca) produce ultrasonic whistles. Journal of the Acoustical Society of America, 128 (5). EL205-EL210.

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Official URL: https://doi.org/10.1121/1.3462235

Abstract

This study reports that killer whales, the largest dolphin, produce whistles with the highest fundamental frequencies ever reported in a delphinid. Using wide-band acoustic sampling from both animal-attached (Dtag) and remotely deployed hydrophone arrays, ultrasonic whistles were detected in three Northeast Atlantic populations but not in two Northeast Pacific populations. These results are inconsistent with analyses suggesting a correlation of maximum frequency of whistles with body size in delphinids, indicate substantial intraspecific variation in whistle production in killer whales, and highlight the importance of appropriate acoustic sampling techniques when conducting comparative analyses of sound repertoires.

Item Type: Article
Journal or Publication Title: Journal of the Acoustical Society of America
Publisher: Acoustical Society of America
ISSN: 1520-8524
Departments: Centre for Wildlife Conservation
Depositing User: Anna Lupton
Date Deposited: 27 Feb 2017 15:36
Last Modified: 03 Apr 2017 15:32
URI: http://insight.cumbria.ac.uk/id/eprint/2704

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