[MARMAM] New publication on humpback whale acoustic ecology
Michelle Elizabeth Fournet
mef264 at cornell.edu
Mon Oct 22 17:21:49 PDT 2018
We are pleased to announce that the following paper has been published
online in Marine Mammal Science:
Incorporating tides into the acoustic ecology of humpback whales
Dawn R. Barlow*, Michelle EH Fournet*, Fred Sharpe
North Pacific humpback whales (Megaptera novaeangliae) migrate annually to foraging grounds in Southeast Alaska that are characterized by semidiurnal tidal cycles. Tidal activity is an important driver of marine mammal behavior on foraging grounds, but is often omitted in studies of acoustic ecology. To better understand the role of sound in this vocal species we investigated the influence of tidal height and direction on humpback whale nonsong calling behavior in Frederick Sound and described new call types for this population. The likelihood of detecting a call from the low©\frequency©\harmonic, pulsed, or noisy©\complex call classes was independent of tidal activity. The likelihood of detecting a call from the tonal call class, and a feeding call in particular, was 2.1 times higher during flood tides than during ebb tides (95% CI 1.1¨C4.4). This likely reflects an indirect relationship between humpback whale foraging and tides.
Please don't hesitate to contact myself (michelle.fournet at cornell.edu) or Dawn Barlow (dawn.barlow at oregonstate.edu) with any questions.
Michelle E.H. Fournet, PhD
Postdoctoral Research Associate
Cornell Lab of Ornithology
Bioacoustics Research Program
159 Sapsucker Woods Road
Ithaca, NY, 14850-1999
michelle.fournet at cornell.edu
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