Specific features of vowel-like signals of white whales

Bel’kovich, V. M.; Крейчи, С.А.

doi:10.1134/1.1739497

Cited by 4 publications

(2 citation statements)

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“…The communicative role of these signals is unknown. Suppositions include “vowels” have individual‐specific features (Bel'kovich and Kreichi ) and function as contact calls (Panova et al . ).…”

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confidence: 99%

Intraspecific variability in the “vowel”‐like sounds of beluga whales (Delphinapterus leucas): Intra‐ and interpopulation comparisons

Panova

Belikov

Agafonov

et al. 2015

Marine Mammal Science

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The beluga whale (Delphinapterus leucas) has a rich and complicated vocal repertoire. However, different populations use similar and common types of signals. We studied physical features of one of these types, “vowels,” in three Russian populations: the White Sea population (European North), the Chukotka population (the Bering Sea, Chukotka), and the Okhotsk Sea population (Russian Far East) as well as in four summer aggregations of the White Sea belugas over several years in duration. The pulse repetition rate (PRR) at half of the duration of the signal was measured. We found that the PRR of “vowels” collected in the same summer aggregation during different years is stable in time but varies between locations. The degree of variation corresponds with the geographic distance between different locations. Significant differences were discovered between populations separated by thousands of kilometers, and to a lesser extent, between summer aggregations inhabiting different bays of the White Sea. The variation in PRR between the locations can be caused by the divergence of signals owing to the accumulation of random errors during transmission of these signals from generation to generation, which progressed independently in different summer aggregations and populations.

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confidence: 99%

Intraspecific variability in the “vowel”‐like sounds of beluga whales (Delphinapterus leucas): Intra‐ and interpopulation comparisons

Panova

Belikov

Agafonov

et al. 2015

Marine Mammal Science

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“…The evidence available suggests that whistles have some function as contact calls. Some whistles are unique to individuals and are used in exchanges with other belugas (Morgan 1979, Van Parijs et al 2003, Bel'kovich and Kreichi 2004. A recent paper by Morisaka et al (2013), based on data collected in an oceanarium, described a burst-pulse call similar in sound to a door creaking, termed "PS1", that seemed to serve as a contact call.…”

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confidence: 99%

Bubble Stream Production by Belugas (Delphinapterus leucas)

Slack¹

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This thesis is dedicated to "Stone Cold" Steve Austin. v ACKNOWLEDGMENTS I would like to acknowledge a few people and organizations that made this work possible. First, to my thesis committee, thank you for your guidance and insights. I truly feel that I am equipped to be a scientist because of the skills you have taught me. Thank you to everyone at SeaWorld San Diego and Hubbs-SeaWorld Research Institute, including the research assistants, who made it possible for this data to be collected and analyzed. I also owe an immense amount to my fellow graduate students in the program for their friendship and support. To my parents: your moral (and, of course, financial) backing were crucial in helping me to accomplish this goal. Not only did you support me through this process, but you have encouraged me for as long as I can remember to find my passion and follow it. That sense of potential and limitlessness is one of the qualities that most deeply defines me as a person, and I will always be indebted to you for that. To Brittany Yakobson, one of my favorite people (and my favorite roommate), thank you for letting me work on my thesis from home in my pajamas more days than I am proud to admit. More importantly, thank you for being a wonderful friend, a shoulder, and an unconditional supporter. To Joy Shapiro: though you fall into the "fellow graduate students" category, you are extra-special to me. You have seen me through so many things and you have a very important place in my heart. Thank you for being one of the most genuine, generous people I have ever met. Finally, to David Vejar, no words can capture how grateful I am for you. I know you don't always believe it when I tell you that I could not have done this without vi you, but it's very true, as is the case with so many things I've done since I have known you. You talked me off the ledge when I felt like giving up, but you also gave me the swift kick in the ass that I needed when I just got lazy. You have always encouraged me to follow my dreams even when it was not convenient for you, and that means the world to me. Thank you.

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