Divergence of a stereotyped call in northern resident killer whales

Dawn M. Grebner, Susan E. Parks, David Bradley, Jennifer L. Miksis-Olds, Dean Capone, John K.B. Ford

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Northern resident killer whale pods (Orcinus orca) have distinctive stereotyped pulsed call repertoires that can be used to distinguish groups acoustically. Repertoires are generally stable, with the same call types comprising the repertoire of a given pod over a period of years to decades. Previous studies have shown that some discrete pulsed calls can be subdivided into variants or subtypes. This study suggests that new stereotyped calls may result from the gradual modification of existing call types through subtypes. Vocalizations of individuals and small groups of killer whales were collected using a bottom-mounted hydrophone array in Johnstone Strait, British Columbia in 2006 and 2007. Discriminant analysis of slope variations of a predominant call type, N4, revealed the presence of four distinct call subtypes. Similar to previous studies, there was a divergence of the N4 call between members of different matrilines of the same pod. However, this study reveals that individual killer whales produced multiple subtypes of the N4 call, indicating that divergence in the N4 call is not the result of individual differences, but rather may indicate the gradual evolution of a new stereotyped call.

Original languageEnglish (US)
Pages (from-to)1067-1072
Number of pages6
JournalJournal of the Acoustical Society of America
Volume129
Issue number2
DOIs
StatePublished - Feb 1 2011

Fingerprint

whales
divergence
British Columbia
straits
hydrophones
slopes
Divergence
Repertoire
Residents

All Science Journal Classification (ASJC) codes

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

Cite this

Grebner, D. M., Parks, S. E., Bradley, D., Miksis-Olds, J. L., Capone, D., & Ford, J. K. B. (2011). Divergence of a stereotyped call in northern resident killer whales. Journal of the Acoustical Society of America, 129(2), 1067-1072. https://doi.org/10.1121/1.3531842
Grebner, Dawn M. ; Parks, Susan E. ; Bradley, David ; Miksis-Olds, Jennifer L. ; Capone, Dean ; Ford, John K.B. / Divergence of a stereotyped call in northern resident killer whales. In: Journal of the Acoustical Society of America. 2011 ; Vol. 129, No. 2. pp. 1067-1072.
@article{dcc3a3d86ed94acf82dc155b07a1eacb,
title = "Divergence of a stereotyped call in northern resident killer whales",
abstract = "Northern resident killer whale pods (Orcinus orca) have distinctive stereotyped pulsed call repertoires that can be used to distinguish groups acoustically. Repertoires are generally stable, with the same call types comprising the repertoire of a given pod over a period of years to decades. Previous studies have shown that some discrete pulsed calls can be subdivided into variants or subtypes. This study suggests that new stereotyped calls may result from the gradual modification of existing call types through subtypes. Vocalizations of individuals and small groups of killer whales were collected using a bottom-mounted hydrophone array in Johnstone Strait, British Columbia in 2006 and 2007. Discriminant analysis of slope variations of a predominant call type, N4, revealed the presence of four distinct call subtypes. Similar to previous studies, there was a divergence of the N4 call between members of different matrilines of the same pod. However, this study reveals that individual killer whales produced multiple subtypes of the N4 call, indicating that divergence in the N4 call is not the result of individual differences, but rather may indicate the gradual evolution of a new stereotyped call.",
author = "Grebner, {Dawn M.} and Parks, {Susan E.} and David Bradley and Miksis-Olds, {Jennifer L.} and Dean Capone and Ford, {John K.B.}",
year = "2011",
month = "2",
day = "1",
doi = "10.1121/1.3531842",
language = "English (US)",
volume = "129",
pages = "1067--1072",
journal = "Journal of the Acoustical Society of America",
issn = "0001-4966",
publisher = "Acoustical Society of America",
number = "2",

}

Grebner, DM, Parks, SE, Bradley, D, Miksis-Olds, JL, Capone, D & Ford, JKB 2011, 'Divergence of a stereotyped call in northern resident killer whales', Journal of the Acoustical Society of America, vol. 129, no. 2, pp. 1067-1072. https://doi.org/10.1121/1.3531842

Divergence of a stereotyped call in northern resident killer whales. / Grebner, Dawn M.; Parks, Susan E.; Bradley, David; Miksis-Olds, Jennifer L.; Capone, Dean; Ford, John K.B.

In: Journal of the Acoustical Society of America, Vol. 129, No. 2, 01.02.2011, p. 1067-1072.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Divergence of a stereotyped call in northern resident killer whales

AU - Grebner, Dawn M.

AU - Parks, Susan E.

AU - Bradley, David

AU - Miksis-Olds, Jennifer L.

AU - Capone, Dean

AU - Ford, John K.B.

PY - 2011/2/1

Y1 - 2011/2/1

N2 - Northern resident killer whale pods (Orcinus orca) have distinctive stereotyped pulsed call repertoires that can be used to distinguish groups acoustically. Repertoires are generally stable, with the same call types comprising the repertoire of a given pod over a period of years to decades. Previous studies have shown that some discrete pulsed calls can be subdivided into variants or subtypes. This study suggests that new stereotyped calls may result from the gradual modification of existing call types through subtypes. Vocalizations of individuals and small groups of killer whales were collected using a bottom-mounted hydrophone array in Johnstone Strait, British Columbia in 2006 and 2007. Discriminant analysis of slope variations of a predominant call type, N4, revealed the presence of four distinct call subtypes. Similar to previous studies, there was a divergence of the N4 call between members of different matrilines of the same pod. However, this study reveals that individual killer whales produced multiple subtypes of the N4 call, indicating that divergence in the N4 call is not the result of individual differences, but rather may indicate the gradual evolution of a new stereotyped call.

AB - Northern resident killer whale pods (Orcinus orca) have distinctive stereotyped pulsed call repertoires that can be used to distinguish groups acoustically. Repertoires are generally stable, with the same call types comprising the repertoire of a given pod over a period of years to decades. Previous studies have shown that some discrete pulsed calls can be subdivided into variants or subtypes. This study suggests that new stereotyped calls may result from the gradual modification of existing call types through subtypes. Vocalizations of individuals and small groups of killer whales were collected using a bottom-mounted hydrophone array in Johnstone Strait, British Columbia in 2006 and 2007. Discriminant analysis of slope variations of a predominant call type, N4, revealed the presence of four distinct call subtypes. Similar to previous studies, there was a divergence of the N4 call between members of different matrilines of the same pod. However, this study reveals that individual killer whales produced multiple subtypes of the N4 call, indicating that divergence in the N4 call is not the result of individual differences, but rather may indicate the gradual evolution of a new stereotyped call.

UR - http://www.scopus.com/inward/record.url?scp=79952130489&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79952130489&partnerID=8YFLogxK

U2 - 10.1121/1.3531842

DO - 10.1121/1.3531842

M3 - Article

VL - 129

SP - 1067

EP - 1072

JO - Journal of the Acoustical Society of America

JF - Journal of the Acoustical Society of America

SN - 0001-4966

IS - 2

ER -