Repetition patterns in Weddell seal (Leptonychotes weddellii) underwater multiple element calls
Many vocalisations produced by Weddell seals (Leptonychotes weddellii) are made up of repeated individual distinct sounds (elements). Patterning of multiple element calls was examined during the breeding season at Casey and Davis, Antarctica. Element and interval durations were measured from 405 cal...
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Australian Antarctic Data Centre
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Online Access: | https://researchdata.ands.org.au/repetition-patterns-weddell-element-calls/699736 https://doi.org/10.4225/15/55EF8FC681CF3 https://data.aad.gov.au/metadata/records/ASAC_2122-2 http://nla.gov.au/nla.party-617536 |
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ftands:oai:ands.org.au::699736 2023-05-15T13:46:57+02:00 Repetition patterns in Weddell seal (Leptonychotes weddellii) underwater multiple element calls TERHUNE, JOHN MOORE (hasPrincipalInvestigator) Australian Antarctic Data Centre (publisher) Spatial: northlimit=-68.0; southlimit=-68.0; westlimit=72.0; eastLimit=72.0; projection=WGS84 Spatial: northlimit=-66.0; southlimit=-66.0; westlimit=110.0; eastLimit=110.0; projection=WGS84 Temporal: From 1997-10-21 to 1997-12-01 https://researchdata.ands.org.au/repetition-patterns-weddell-element-calls/699736 https://doi.org/10.4225/15/55EF8FC681CF3 https://data.aad.gov.au/metadata/records/ASAC_2122-2 http://nla.gov.au/nla.party-617536 unknown Australian Antarctic Data Centre https://researchdata.ands.org.au/repetition-patterns-weddell-element-calls/699736 97dc311c-dc3c-4e76-8b46-0c8599979c89 doi:10.4225/15/55EF8FC681CF3 ASAC_2122-2 https://data.aad.gov.au/metadata/records/ASAC_2122-2 http://nla.gov.au/nla.party-617536 Australian Antarctic Data Centre biota oceans ANIMALS/VERTEBRATES EARTH SCIENCE BIOLOGICAL CLASSIFICATION MAMMALS ATTRIBUTE CALL TYPE CALLS CASEY DAVIS ELEMENTS FREQUENCY LEPTONYCHOTES WEDDELLII REPETITION TIME TRILLS UNDERWATER VOCALISATIONS WEDDELL SEALS HYDROPHONES FIELD SURVEYS CONTINENT > ANTARCTICA > GEOGRAPHIC REGION > POLAR dataset ftands https://doi.org/10.4225/15/55EF8FC681CF3 2020-01-05T21:16:37Z Many vocalisations produced by Weddell seals (Leptonychotes weddellii) are made up of repeated individual distinct sounds (elements). Patterning of multiple element calls was examined during the breeding season at Casey and Davis, Antarctica. Element and interval durations were measured from 405 calls all greater than 3 elements in length. The duration of the calls (22 plus or minus 16.6s) did not seem to vary with an increasing number of elements (F4.404 = 1.83, p = 0.122) because element and interval durations decreased as the number of elements within a call increased. Underwater vocalisations showed seven distinct timing patterns of increasing, decreasing, or constant element and interval durations throughout the calls. One call type occurred with six rhythm patterns, although the majority exhibited only two rhythms. Some call types also displayed steady frequency changes as they progressed. Weddell seal multiple element calls are rhythmically repeated and thus the durations of the elements and intervals within a call occur in a regular manner. Rhythmical repetition used during vocal communication likely enhances the probability of a call being detected and has important implications for the extent to which the seals can successfully transmit information over long distances and during times of high level background noise. See other metadata records and datasets associated with ASAC project 2122 (ASAC_2122) for further information. The fields in this dataset are: Tape/Site/File Filename Call Type Total Number of Elements Attribute Frequency Time Casey Davis Dataset Antarc* Antarctica Weddell Seal Weddell Seals Research Data Australia (Australian National Data Service - ANDS) Weddell ENVELOPE(72.0,72.0,-68.0,-68.0) ENVELOPE(110.0,110.0,-66.0,-66.0) |
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 ATTRIBUTE CALL TYPE CALLS CASEY DAVIS ELEMENTS FREQUENCY LEPTONYCHOTES WEDDELLII REPETITION TIME TRILLS UNDERWATER VOCALISATIONS WEDDELL SEALS HYDROPHONES FIELD SURVEYS CONTINENT > ANTARCTICA > GEOGRAPHIC REGION > POLAR |
spellingShingle |
biota oceans ANIMALS/VERTEBRATES EARTH SCIENCE BIOLOGICAL CLASSIFICATION MAMMALS ATTRIBUTE CALL TYPE CALLS CASEY DAVIS ELEMENTS FREQUENCY LEPTONYCHOTES WEDDELLII REPETITION TIME TRILLS UNDERWATER VOCALISATIONS WEDDELL SEALS HYDROPHONES FIELD SURVEYS CONTINENT > ANTARCTICA > GEOGRAPHIC REGION > POLAR Repetition patterns in Weddell seal (Leptonychotes weddellii) underwater multiple element calls |
topic_facet |
biota oceans ANIMALS/VERTEBRATES EARTH SCIENCE BIOLOGICAL CLASSIFICATION MAMMALS ATTRIBUTE CALL TYPE CALLS CASEY DAVIS ELEMENTS FREQUENCY LEPTONYCHOTES WEDDELLII REPETITION TIME TRILLS UNDERWATER VOCALISATIONS WEDDELL SEALS HYDROPHONES FIELD SURVEYS CONTINENT > ANTARCTICA > GEOGRAPHIC REGION > POLAR |
description |
Many vocalisations produced by Weddell seals (Leptonychotes weddellii) are made up of repeated individual distinct sounds (elements). Patterning of multiple element calls was examined during the breeding season at Casey and Davis, Antarctica. Element and interval durations were measured from 405 calls all greater than 3 elements in length. The duration of the calls (22 plus or minus 16.6s) did not seem to vary with an increasing number of elements (F4.404 = 1.83, p = 0.122) because element and interval durations decreased as the number of elements within a call increased. Underwater vocalisations showed seven distinct timing patterns of increasing, decreasing, or constant element and interval durations throughout the calls. One call type occurred with six rhythm patterns, although the majority exhibited only two rhythms. Some call types also displayed steady frequency changes as they progressed. Weddell seal multiple element calls are rhythmically repeated and thus the durations of the elements and intervals within a call occur in a regular manner. Rhythmical repetition used during vocal communication likely enhances the probability of a call being detected and has important implications for the extent to which the seals can successfully transmit information over long distances and during times of high level background noise. See other metadata records and datasets associated with ASAC project 2122 (ASAC_2122) for further information. The fields in this dataset are: Tape/Site/File Filename Call Type Total Number of Elements Attribute Frequency Time Casey Davis |
author2 |
TERHUNE, JOHN MOORE (hasPrincipalInvestigator) Australian Antarctic Data Centre (publisher) |
format |
Dataset |
title |
Repetition patterns in Weddell seal (Leptonychotes weddellii) underwater multiple element calls |
title_short |
Repetition patterns in Weddell seal (Leptonychotes weddellii) underwater multiple element calls |
title_full |
Repetition patterns in Weddell seal (Leptonychotes weddellii) underwater multiple element calls |
title_fullStr |
Repetition patterns in Weddell seal (Leptonychotes weddellii) underwater multiple element calls |
title_full_unstemmed |
Repetition patterns in Weddell seal (Leptonychotes weddellii) underwater multiple element calls |
title_sort |
repetition patterns in weddell seal (leptonychotes weddellii) underwater multiple element calls |
publisher |
Australian Antarctic Data Centre |
url |
https://researchdata.ands.org.au/repetition-patterns-weddell-element-calls/699736 https://doi.org/10.4225/15/55EF8FC681CF3 https://data.aad.gov.au/metadata/records/ASAC_2122-2 http://nla.gov.au/nla.party-617536 |
op_coverage |
Spatial: northlimit=-68.0; southlimit=-68.0; westlimit=72.0; eastLimit=72.0; projection=WGS84 Spatial: northlimit=-66.0; southlimit=-66.0; westlimit=110.0; eastLimit=110.0; projection=WGS84 Temporal: From 1997-10-21 to 1997-12-01 |
long_lat |
ENVELOPE(72.0,72.0,-68.0,-68.0) ENVELOPE(110.0,110.0,-66.0,-66.0) |
geographic |
Weddell |
geographic_facet |
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/repetition-patterns-weddell-element-calls/699736 97dc311c-dc3c-4e76-8b46-0c8599979c89 doi:10.4225/15/55EF8FC681CF3 ASAC_2122-2 https://data.aad.gov.au/metadata/records/ASAC_2122-2 http://nla.gov.au/nla.party-617536 |
op_doi |
https://doi.org/10.4225/15/55EF8FC681CF3 |
_version_ |
1766245845449048064 |