High suckling rates and acoustic crypsis of humpback whale neonates maximise potential for mother–calf energy transfer
This work was funded by a Sir Walter Murdoch Honorary Professorship along with Carlsberg and FNU funding to P.T.M. L.B. was funded by Murdoch University, and M.J. was funded by the Marine Alliance for Science and Technology, Scotland, and by a Marie Curie Career Integration Grant. Data for this pape...
Published in: | Functional Ecology |
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Main Authors: | , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2018
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Online Access: | http://hdl.handle.net/10023/13227 https://doi.org/10.1111/1365-2435.12871 http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.12871/full#footer-support-info |
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ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/13227 |
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openpolar |
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Open Polar |
collection |
University of St Andrews: Digital Research Repository |
op_collection_id |
ftstandrewserep |
language |
English |
topic |
Bio-energetics Humpback whale Migration Neonate Nursing Suckling QH301 Biology DAS QH301 |
spellingShingle |
Bio-energetics Humpback whale Migration Neonate Nursing Suckling QH301 Biology DAS QH301 Videsen, Simone K. A. Bejder, Lars Johnson, Mark Madsen, Peter T. High suckling rates and acoustic crypsis of humpback whale neonates maximise potential for mother–calf energy transfer |
topic_facet |
Bio-energetics Humpback whale Migration Neonate Nursing Suckling QH301 Biology DAS QH301 |
description |
This work was funded by a Sir Walter Murdoch Honorary Professorship along with Carlsberg and FNU funding to P.T.M. L.B. was funded by Murdoch University, and M.J. was funded by the Marine Alliance for Science and Technology, Scotland, and by a Marie Curie Career Integration Grant. Data for this paper are deposited in the Dryad Digital Repository https://doi.org/10.5061/dryad.m8j17 (Videsen et al. 2017). 1. The migration of humpback whales to and from their breeding grounds results in a short, critical time period during which neonatal calves must acquire sufficient energy via suckling from their fasting mothers to survive the long return journey. 2. Understanding neonate suckling behaviour is critical for understanding the energetics and evolution of humpback whale migratory behaviour and for informing conservation efforts, but despite its importance, very little is known about the details, rate and behavioural context of this critical energy transfer. 3. To address this pertinent data gap on calf suckling behaviour, we deployed multi-sensor Dtags on eight humpback whale calves and two mothers allowing us to analyse detailed suckling and acoustic behaviour for a total of 68·8 h. 4. Suckling dives were performed 20·7 ± 7% of the total tagging time with the mothers either resting at the surface or at depth with the calves hanging motionless with roll and pitch angles close to zero. 5. Vocalisations between mother and calf, which included very weak tonal and grunting sounds, were produced more frequently during active dives than suckling dives, suggesting that mechanical stimuli rather than acoustic cues are used to initiate nursing. 6. Use of mechanical cues for initiating suckling and low level vocalisations with an active space of <100 m indicate a strong selection pressure for acoustic crypsis. 7. Such inconspicuous behaviour likely reduces the risk of exposure to eavesdropping predators and male humpback whale escorts that may disrupt the high proportion of time spent nursing and resting, and hence ... |
author2 |
European Commission University of St Andrews. School of Biology University of St Andrews. Marine Alliance for Science & Technology Scotland University of St Andrews. Sea Mammal Research Unit University of St Andrews. Sound Tags Group University of St Andrews. Bioacoustics group University of St Andrews. Scottish Oceans Institute |
format |
Article in Journal/Newspaper |
author |
Videsen, Simone K. A. Bejder, Lars Johnson, Mark Madsen, Peter T. |
author_facet |
Videsen, Simone K. A. Bejder, Lars Johnson, Mark Madsen, Peter T. |
author_sort |
Videsen, Simone K. A. |
title |
High suckling rates and acoustic crypsis of humpback whale neonates maximise potential for mother–calf energy transfer |
title_short |
High suckling rates and acoustic crypsis of humpback whale neonates maximise potential for mother–calf energy transfer |
title_full |
High suckling rates and acoustic crypsis of humpback whale neonates maximise potential for mother–calf energy transfer |
title_fullStr |
High suckling rates and acoustic crypsis of humpback whale neonates maximise potential for mother–calf energy transfer |
title_full_unstemmed |
High suckling rates and acoustic crypsis of humpback whale neonates maximise potential for mother–calf energy transfer |
title_sort |
high suckling rates and acoustic crypsis of humpback whale neonates maximise potential for mother–calf energy transfer |
publishDate |
2018 |
url |
http://hdl.handle.net/10023/13227 https://doi.org/10.1111/1365-2435.12871 http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.12871/full#footer-support-info |
long_lat |
ENVELOPE(-44.666,-44.666,-60.783,-60.783) |
geographic |
Murdoch |
geographic_facet |
Murdoch |
genre |
Humpback Whale |
genre_facet |
Humpback Whale |
op_relation |
Functional Ecology Videsen , S K A , Bejder , L , Johnson , M & Madsen , P T 2017 , ' High suckling rates and acoustic crypsis of humpback whale neonates maximise potential for mother–calf energy transfer ' , Functional Ecology , vol. 31 , no. 8 , pp. 1561-1573 . https://doi.org/10.1111/1365-2435.12871 1365-2435 PURE: 249869436 PURE UUID: 193a4443-89f8-4c6d-a26c-44cba9b16b98 Bibtex: urn:aa54f76ffbf272ed173210f26cbae341 Scopus: 85018710780 WOS: 000406977200006 http://hdl.handle.net/10023/13227 https://doi.org/10.1111/1365-2435.12871 http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.12871/full#footer-support-info PCIG10-GA-2011-304132 |
op_rights |
© 2017, the Authors, Functional Ecology, British Ecological Society. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1111/1365-2435.12871 |
op_doi |
https://doi.org/10.1111/1365-2435.12871 |
container_title |
Functional Ecology |
container_volume |
31 |
container_issue |
8 |
container_start_page |
1561 |
op_container_end_page |
1573 |
_version_ |
1770272119735713792 |
spelling |
ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/13227 2023-07-02T03:32:31+02:00 High suckling rates and acoustic crypsis of humpback whale neonates maximise potential for mother–calf energy transfer Videsen, Simone K. A. Bejder, Lars Johnson, Mark Madsen, Peter T. European Commission University of St Andrews. School of Biology University of St Andrews. Marine Alliance for Science & Technology Scotland University of St Andrews. Sea Mammal Research Unit University of St Andrews. Sound Tags Group University of St Andrews. Bioacoustics group University of St Andrews. Scottish Oceans Institute 2018-04-25 application/pdf http://hdl.handle.net/10023/13227 https://doi.org/10.1111/1365-2435.12871 http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.12871/full#footer-support-info eng eng Functional Ecology Videsen , S K A , Bejder , L , Johnson , M & Madsen , P T 2017 , ' High suckling rates and acoustic crypsis of humpback whale neonates maximise potential for mother–calf energy transfer ' , Functional Ecology , vol. 31 , no. 8 , pp. 1561-1573 . https://doi.org/10.1111/1365-2435.12871 1365-2435 PURE: 249869436 PURE UUID: 193a4443-89f8-4c6d-a26c-44cba9b16b98 Bibtex: urn:aa54f76ffbf272ed173210f26cbae341 Scopus: 85018710780 WOS: 000406977200006 http://hdl.handle.net/10023/13227 https://doi.org/10.1111/1365-2435.12871 http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.12871/full#footer-support-info PCIG10-GA-2011-304132 © 2017, the Authors, Functional Ecology, British Ecological Society. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1111/1365-2435.12871 Bio-energetics Humpback whale Migration Neonate Nursing Suckling QH301 Biology DAS QH301 Journal article 2018 ftstandrewserep https://doi.org/10.1111/1365-2435.12871 2023-06-13T18:31:14Z This work was funded by a Sir Walter Murdoch Honorary Professorship along with Carlsberg and FNU funding to P.T.M. L.B. was funded by Murdoch University, and M.J. was funded by the Marine Alliance for Science and Technology, Scotland, and by a Marie Curie Career Integration Grant. Data for this paper are deposited in the Dryad Digital Repository https://doi.org/10.5061/dryad.m8j17 (Videsen et al. 2017). 1. The migration of humpback whales to and from their breeding grounds results in a short, critical time period during which neonatal calves must acquire sufficient energy via suckling from their fasting mothers to survive the long return journey. 2. Understanding neonate suckling behaviour is critical for understanding the energetics and evolution of humpback whale migratory behaviour and for informing conservation efforts, but despite its importance, very little is known about the details, rate and behavioural context of this critical energy transfer. 3. To address this pertinent data gap on calf suckling behaviour, we deployed multi-sensor Dtags on eight humpback whale calves and two mothers allowing us to analyse detailed suckling and acoustic behaviour for a total of 68·8 h. 4. Suckling dives were performed 20·7 ± 7% of the total tagging time with the mothers either resting at the surface or at depth with the calves hanging motionless with roll and pitch angles close to zero. 5. Vocalisations between mother and calf, which included very weak tonal and grunting sounds, were produced more frequently during active dives than suckling dives, suggesting that mechanical stimuli rather than acoustic cues are used to initiate nursing. 6. Use of mechanical cues for initiating suckling and low level vocalisations with an active space of <100 m indicate a strong selection pressure for acoustic crypsis. 7. Such inconspicuous behaviour likely reduces the risk of exposure to eavesdropping predators and male humpback whale escorts that may disrupt the high proportion of time spent nursing and resting, and hence ... Article in Journal/Newspaper Humpback Whale University of St Andrews: Digital Research Repository Murdoch ENVELOPE(-44.666,-44.666,-60.783,-60.783) Functional Ecology 31 8 1561 1573 |