INDIVIDUAL VARIATION IN THE ACOUSTIC BEHAVIOUR OF THE ADULT MALE LEOPARD SEAL, HYDRURGA LEPTONYX
Abstract Vocalisations and vocalising bouts of adult male leopard seals recorded from the Prydz Bay region, East Antarctica, were compared to determine whether they showed individual variability. There were distinct individual patterns in the sequence of vocalisations within vocalising bouts. A sequ...
Published in: | Behaviour |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Brill
2002
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1163/156853902321104154 https://brill.com/view/journals/beh/139/10/article-p1267_1.xml https://brill.com/downloadpdf/journals/beh/139/10/article-p1267_1.xml |
id |
crbrillap:10.1163/156853902321104154 |
---|---|
record_format |
openpolar |
spelling |
crbrillap:10.1163/156853902321104154 2023-09-05T13:14:16+02:00 INDIVIDUAL VARIATION IN THE ACOUSTIC BEHAVIOUR OF THE ADULT MALE LEOPARD SEAL, HYDRURGA LEPTONYX Rogers, Tracey Cato, Douglas 2002 http://dx.doi.org/10.1163/156853902321104154 https://brill.com/view/journals/beh/139/10/article-p1267_1.xml https://brill.com/downloadpdf/journals/beh/139/10/article-p1267_1.xml unknown Brill Behaviour volume 139, issue 10, page 1267-1286 ISSN 0005-7959 1568-539X Behavioral Neuroscience Animal Science and Zoology journal-article 2002 crbrillap https://doi.org/10.1163/156853902321104154 2023-08-11T15:02:31Z Abstract Vocalisations and vocalising bouts of adult male leopard seals recorded from the Prydz Bay region, East Antarctica, were compared to determine whether they showed individual variability. There were distinct individual patterns in the sequence of vocalisations within vocalising bouts. A sequence could be reliably ascribed to a particular individual with a high degree (83%) of certainty. Such sequences may carry information about the identity of the caller. Acoustic characteristics of the two most commonly used vocalisations, the high and low double trills, showed weak within individual variation. Although differences were observed among individuals in the high double trill few were observed in the low double trill consequently the low double trills of some individuals could not be reliably ascribed to any particular seal. For many species, individual variation occurs in acoustic characteristics of specific vocalisations rather than in the sequence in which the vocalisations are produced. The acoustic displays of solitary species such as the leopard seal, are constrained by the difficulties of detecting and recognising the signal at a distance. Vocalisation sequences may be less adversely affected by signal degradation and so could be effective for communicating information over distance. It has been suggested that individual acoustic variation is found primarily in gregarious species however findings from the current study suggest that solitary animals using long-range underwater acoustic displays may convey individual variability in their vocalising sequence patterns. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Hydrurga leptonyx Leopard Seal Leopard Seals Prydz Bay Brill (via Crossref) East Antarctica Hydrurga ENVELOPE(-61.626,-61.626,-64.145,-64.145) Prydz Bay Behaviour 139 10 1267 1286 |
institution |
Open Polar |
collection |
Brill (via Crossref) |
op_collection_id |
crbrillap |
language |
unknown |
topic |
Behavioral Neuroscience Animal Science and Zoology |
spellingShingle |
Behavioral Neuroscience Animal Science and Zoology Rogers, Tracey Cato, Douglas INDIVIDUAL VARIATION IN THE ACOUSTIC BEHAVIOUR OF THE ADULT MALE LEOPARD SEAL, HYDRURGA LEPTONYX |
topic_facet |
Behavioral Neuroscience Animal Science and Zoology |
description |
Abstract Vocalisations and vocalising bouts of adult male leopard seals recorded from the Prydz Bay region, East Antarctica, were compared to determine whether they showed individual variability. There were distinct individual patterns in the sequence of vocalisations within vocalising bouts. A sequence could be reliably ascribed to a particular individual with a high degree (83%) of certainty. Such sequences may carry information about the identity of the caller. Acoustic characteristics of the two most commonly used vocalisations, the high and low double trills, showed weak within individual variation. Although differences were observed among individuals in the high double trill few were observed in the low double trill consequently the low double trills of some individuals could not be reliably ascribed to any particular seal. For many species, individual variation occurs in acoustic characteristics of specific vocalisations rather than in the sequence in which the vocalisations are produced. The acoustic displays of solitary species such as the leopard seal, are constrained by the difficulties of detecting and recognising the signal at a distance. Vocalisation sequences may be less adversely affected by signal degradation and so could be effective for communicating information over distance. It has been suggested that individual acoustic variation is found primarily in gregarious species however findings from the current study suggest that solitary animals using long-range underwater acoustic displays may convey individual variability in their vocalising sequence patterns. |
format |
Article in Journal/Newspaper |
author |
Rogers, Tracey Cato, Douglas |
author_facet |
Rogers, Tracey Cato, Douglas |
author_sort |
Rogers, Tracey |
title |
INDIVIDUAL VARIATION IN THE ACOUSTIC BEHAVIOUR OF THE ADULT MALE LEOPARD SEAL, HYDRURGA LEPTONYX |
title_short |
INDIVIDUAL VARIATION IN THE ACOUSTIC BEHAVIOUR OF THE ADULT MALE LEOPARD SEAL, HYDRURGA LEPTONYX |
title_full |
INDIVIDUAL VARIATION IN THE ACOUSTIC BEHAVIOUR OF THE ADULT MALE LEOPARD SEAL, HYDRURGA LEPTONYX |
title_fullStr |
INDIVIDUAL VARIATION IN THE ACOUSTIC BEHAVIOUR OF THE ADULT MALE LEOPARD SEAL, HYDRURGA LEPTONYX |
title_full_unstemmed |
INDIVIDUAL VARIATION IN THE ACOUSTIC BEHAVIOUR OF THE ADULT MALE LEOPARD SEAL, HYDRURGA LEPTONYX |
title_sort |
individual variation in the acoustic behaviour of the adult male leopard seal, hydrurga leptonyx |
publisher |
Brill |
publishDate |
2002 |
url |
http://dx.doi.org/10.1163/156853902321104154 https://brill.com/view/journals/beh/139/10/article-p1267_1.xml https://brill.com/downloadpdf/journals/beh/139/10/article-p1267_1.xml |
long_lat |
ENVELOPE(-61.626,-61.626,-64.145,-64.145) |
geographic |
East Antarctica Hydrurga Prydz Bay |
geographic_facet |
East Antarctica Hydrurga Prydz Bay |
genre |
Antarc* Antarctica East Antarctica Hydrurga leptonyx Leopard Seal Leopard Seals Prydz Bay |
genre_facet |
Antarc* Antarctica East Antarctica Hydrurga leptonyx Leopard Seal Leopard Seals Prydz Bay |
op_source |
Behaviour volume 139, issue 10, page 1267-1286 ISSN 0005-7959 1568-539X |
op_doi |
https://doi.org/10.1163/156853902321104154 |
container_title |
Behaviour |
container_volume |
139 |
container_issue |
10 |
container_start_page |
1267 |
op_container_end_page |
1286 |
_version_ |
1776205276174614528 |