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Whale-call response to masking boat noise

Author

Listed:
  • Andrew D. Foote

    (School of Biological and Biomedical Sciences, University of Durham)

  • Richard W. Osborne

    (The Whale Museum)

  • A. Rus Hoelzel

    (School of Biological and Biomedical Sciences, University of Durham)

Abstract

Background noise can interfere with the detection and discrimination of crucial signals among members of a species. Here we investigate the vocal behaviour in the presence and absence of whale-watcher boat traffic of three social groups (pods) of killer whales (Orcinus orca) living in the nearshore waters of Washington state. We find longer call durations in the presence of boats for all three pods, but only in recent recordings made following a period of increasing boat traffic. This result indicates that these whales adjust their behaviour to compensate for anthropogenic noise once it reaches a threshold level.

Suggested Citation

  • Andrew D. Foote & Richard W. Osborne & A. Rus Hoelzel, 2004. "Whale-call response to masking boat noise," Nature, Nature, vol. 428(6986), pages 910-910, April.
    • Handle: RePEc:nat:nature:v:428:y:2004:i:6986:d:10.1038_428910a
    DOI: 10.1038/428910a
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    Cited by:

    1. Juliana Houghton & Marla M Holt & Deborah A Giles & M Bradley Hanson & Candice K Emmons & Jeffrey T Hogan & Trevor A Branch & Glenn R VanBlaricom, 2015. "The Relationship between Vessel Traffic and Noise Levels Received by Killer Whales (Orcinus orca)," PLOS ONE, Public Library of Science, vol. 10(12), pages 1-20, December.

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