Stereotyped Calling Patterns of a Male Weddell Seal (Leptonychotes weddellii)
From the abstract of the attached paper: Underwater calling behaviour between breathing bouts of a single adult male Weddell seal (Leptonychotes weddellii) was examined with respect to call type and timing late in the breeding season at Davis Station, Antarctica. Underwater calls and breathing sound...
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Australian Antarctic Data Centre
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Online Access: | https://researchdata.ands.org.au/stereotyped-calling-patterns-leptonychotes-weddellii/699739 https://doi.org/10.4225/15/55EFCFF0E51F5 https://data.aad.gov.au/metadata/records/ASAC_2122-5 http://nla.gov.au/nla.party-617536 |
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ftands:oai:ands.org.au::699739 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
biota oceans ANIMALS/VERTEBRATES EARTH SCIENCE BIOLOGICAL CLASSIFICATION MAMMALS SEQUENCE ANTARCTICA DAVIS SONGS TERRITORIAL DEFENCE LEPTONYCHOTES WEDDELLII UNDERWATER VOCALISATIONS WEDDELL SEALS CALL TYPE TIME BREATH HYDROPHONES FIELD SURVEYS CONTINENT > ANTARCTICA > GEOGRAPHIC REGION > POLAR |
spellingShingle |
biota oceans ANIMALS/VERTEBRATES EARTH SCIENCE BIOLOGICAL CLASSIFICATION MAMMALS SEQUENCE ANTARCTICA DAVIS SONGS TERRITORIAL DEFENCE LEPTONYCHOTES WEDDELLII UNDERWATER VOCALISATIONS WEDDELL SEALS CALL TYPE TIME BREATH HYDROPHONES FIELD SURVEYS CONTINENT > ANTARCTICA > GEOGRAPHIC REGION > POLAR Stereotyped Calling Patterns of a Male Weddell Seal (Leptonychotes weddellii) |
topic_facet |
biota oceans ANIMALS/VERTEBRATES EARTH SCIENCE BIOLOGICAL CLASSIFICATION MAMMALS SEQUENCE ANTARCTICA DAVIS SONGS TERRITORIAL DEFENCE LEPTONYCHOTES WEDDELLII UNDERWATER VOCALISATIONS WEDDELL SEALS CALL TYPE TIME BREATH HYDROPHONES FIELD SURVEYS CONTINENT > ANTARCTICA > GEOGRAPHIC REGION > POLAR |
description |
From the abstract of the attached paper: Underwater calling behaviour between breathing bouts of a single adult male Weddell seal (Leptonychotes weddellii) was examined with respect to call type and timing late in the breeding season at Davis Station, Antarctica. Underwater calls and breathing sounds were recorded on 1 and 8 December 1997. Thirty-seven sequences of calls prior to surfacing to breathe and 36 post-submerging sets of calls were analysed with respect to probability of call type occurrence and timing. Dives were 461 plus or minus 259 seconds (mean plus or minus standard deviation). The seal called every 29.7 plus or minus 56.2 seconds throughout a dive. The first call after submerging was usually (n = 29 of 36) a low frequency (less than 0.8 kHz) growl. Three patterns of three- to five-call type sequences were made following 28 of 36 breathing bouts. Call type patterns after submerging exhibited fewer different sequences than those before surfacing (chi-squared = 61.42, DF = 4, p less than 0.000001). The call usage patterns before surfacing were diverse and did not indicate when the seal was going to surface, a time when he would be vulnerable to attack from below. Our findings suggest the hypotheses that territorial male Weddell seals call throughout each dive and use stereotyped call patterns to identify themselves while vocally asserting dominance. This work was completed as part of ASAC project 2122 (ASAC_2122). The fields in this dataset are: Tape number Sequence per tape Sequence entire data Call types Count since last breath Last breathing bout number Count prior to next breath Time in tape (seconds) End time of last breath Start time of next breath Time since dive The 'sequence' relates to the sequence of call types that are given between the end of the last breath of a breathing bout and the beginning of the first breath the next time the seal surfaces to breathe. Essentially the report relates to the stereotyped nature of the call types, especially just after the dominant male dives after finishing breathing. Each time the animal surfaced, that was identified as a breathing bout. They are numbered sequentially. At the very start of the data set the seal had to surface before the breathing bout could be counted (as number 1). This procedure enabled us to identify the order and timing of the calls that occurred immediately before and immediately after each breathing bout. Thus, the 'count prior to the next breath' gives the order of the calls before the seal surfaced to breathe again (third last, second last, last,). The call types were analysed with respect to the following pattern: third last, second last, last, breathing bout, first, second, third, etc. to third last, second last, last, next breathing bout. |
author2 |
TERHUNE, JOHN MOORE (hasPrincipalInvestigator) TERHUNE, JOHN MOORE (processor) DELL' APA, ANDREA (hasPrincipalInvestigator) DELL' APA, ANDREA (processor) Australian Antarctic Data Centre (publisher) |
format |
Dataset |
title |
Stereotyped Calling Patterns of a Male Weddell Seal (Leptonychotes weddellii) |
title_short |
Stereotyped Calling Patterns of a Male Weddell Seal (Leptonychotes weddellii) |
title_full |
Stereotyped Calling Patterns of a Male Weddell Seal (Leptonychotes weddellii) |
title_fullStr |
Stereotyped Calling Patterns of a Male Weddell Seal (Leptonychotes weddellii) |
title_full_unstemmed |
Stereotyped Calling Patterns of a Male Weddell Seal (Leptonychotes weddellii) |
title_sort |
stereotyped calling patterns of a male weddell seal (leptonychotes weddellii) |
publisher |
Australian Antarctic Data Centre |
url |
https://researchdata.ands.org.au/stereotyped-calling-patterns-leptonychotes-weddellii/699739 https://doi.org/10.4225/15/55EFCFF0E51F5 https://data.aad.gov.au/metadata/records/ASAC_2122-5 http://nla.gov.au/nla.party-617536 |
op_coverage |
Spatial: northlimit=-68.56985; southlimit=-68.56995; westlimit=77.92655; eastLimit=77.92665; projection=WGS84 Temporal: From 1997-12-01 to 1997-12-08 |
long_lat |
ENVELOPE(77.968,77.968,-68.576,-68.576) ENVELOPE(77.968,77.968,-68.576,-68.576) ENVELOPE(77.92655,77.92665,-68.56985,-68.56995) |
geographic |
Davis Station Davis-Station Weddell |
geographic_facet |
Davis Station Davis-Station Weddell |
genre |
Antarc* Antarctica Weddell Seal Weddell Seals |
genre_facet |
Antarc* Antarctica Weddell Seal Weddell Seals |
op_source |
Australian Antarctic Data Centre |
op_relation |
https://researchdata.ands.org.au/stereotyped-calling-patterns-leptonychotes-weddellii/699739 fcc0bb7f-0e36-407d-8d98-4779c89c6623 doi:10.4225/15/55EFCFF0E51F5 ASAC_2122-5 https://data.aad.gov.au/metadata/records/ASAC_2122-5 http://nla.gov.au/nla.party-617536 |
op_doi |
https://doi.org/10.4225/15/55EFCFF0E51F5 |
_version_ |
1766245846269034496 |
spelling |
ftands:oai:ands.org.au::699739 2023-05-15T13:46:57+02:00 Stereotyped Calling Patterns of a Male Weddell Seal (Leptonychotes weddellii) TERHUNE, JOHN MOORE (hasPrincipalInvestigator) TERHUNE, JOHN MOORE (processor) DELL' APA, ANDREA (hasPrincipalInvestigator) DELL' APA, ANDREA (processor) Australian Antarctic Data Centre (publisher) Spatial: northlimit=-68.56985; southlimit=-68.56995; westlimit=77.92655; eastLimit=77.92665; projection=WGS84 Temporal: From 1997-12-01 to 1997-12-08 https://researchdata.ands.org.au/stereotyped-calling-patterns-leptonychotes-weddellii/699739 https://doi.org/10.4225/15/55EFCFF0E51F5 https://data.aad.gov.au/metadata/records/ASAC_2122-5 http://nla.gov.au/nla.party-617536 unknown Australian Antarctic Data Centre https://researchdata.ands.org.au/stereotyped-calling-patterns-leptonychotes-weddellii/699739 fcc0bb7f-0e36-407d-8d98-4779c89c6623 doi:10.4225/15/55EFCFF0E51F5 ASAC_2122-5 https://data.aad.gov.au/metadata/records/ASAC_2122-5 http://nla.gov.au/nla.party-617536 Australian Antarctic Data Centre biota oceans ANIMALS/VERTEBRATES EARTH SCIENCE BIOLOGICAL CLASSIFICATION MAMMALS SEQUENCE ANTARCTICA DAVIS SONGS TERRITORIAL DEFENCE LEPTONYCHOTES WEDDELLII UNDERWATER VOCALISATIONS WEDDELL SEALS CALL TYPE TIME BREATH HYDROPHONES FIELD SURVEYS CONTINENT > ANTARCTICA > GEOGRAPHIC REGION > POLAR dataset ftands https://doi.org/10.4225/15/55EFCFF0E51F5 2020-01-05T21:16:37Z From the abstract of the attached paper: Underwater calling behaviour between breathing bouts of a single adult male Weddell seal (Leptonychotes weddellii) was examined with respect to call type and timing late in the breeding season at Davis Station, Antarctica. Underwater calls and breathing sounds were recorded on 1 and 8 December 1997. Thirty-seven sequences of calls prior to surfacing to breathe and 36 post-submerging sets of calls were analysed with respect to probability of call type occurrence and timing. Dives were 461 plus or minus 259 seconds (mean plus or minus standard deviation). The seal called every 29.7 plus or minus 56.2 seconds throughout a dive. The first call after submerging was usually (n = 29 of 36) a low frequency (less than 0.8 kHz) growl. Three patterns of three- to five-call type sequences were made following 28 of 36 breathing bouts. Call type patterns after submerging exhibited fewer different sequences than those before surfacing (chi-squared = 61.42, DF = 4, p less than 0.000001). The call usage patterns before surfacing were diverse and did not indicate when the seal was going to surface, a time when he would be vulnerable to attack from below. Our findings suggest the hypotheses that territorial male Weddell seals call throughout each dive and use stereotyped call patterns to identify themselves while vocally asserting dominance. This work was completed as part of ASAC project 2122 (ASAC_2122). The fields in this dataset are: Tape number Sequence per tape Sequence entire data Call types Count since last breath Last breathing bout number Count prior to next breath Time in tape (seconds) End time of last breath Start time of next breath Time since dive The 'sequence' relates to the sequence of call types that are given between the end of the last breath of a breathing bout and the beginning of the first breath the next time the seal surfaces to breathe. Essentially the report relates to the stereotyped nature of the call types, especially just after the dominant male dives after finishing breathing. Each time the animal surfaced, that was identified as a breathing bout. They are numbered sequentially. At the very start of the data set the seal had to surface before the breathing bout could be counted (as number 1). This procedure enabled us to identify the order and timing of the calls that occurred immediately before and immediately after each breathing bout. Thus, the 'count prior to the next breath' gives the order of the calls before the seal surfaced to breathe again (third last, second last, last,). The call types were analysed with respect to the following pattern: third last, second last, last, breathing bout, first, second, third, etc. to third last, second last, last, next breathing bout. Dataset Antarc* Antarctica Weddell Seal Weddell Seals Research Data Australia (Australian National Data Service - ANDS) Davis Station ENVELOPE(77.968,77.968,-68.576,-68.576) Davis-Station ENVELOPE(77.968,77.968,-68.576,-68.576) Weddell ENVELOPE(77.92655,77.92665,-68.56985,-68.56995) |