Environmental conditions and marine heatwaves influence blue whale foraging and reproductive effort
Animal behavior is motivated by the fundamental need to feed and reproduce, and these behaviors can be inferred from spatiotemporal variations in biological signals such as vocalizations. Yet, linking foraging and reproductive effort to environmental drivers can be challenging for wide‐ranging preda...
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ftpubmed:oai:pubmedcentral.nih.gov:9968652 2023-05-15T15:45:12+02:00 Environmental conditions and marine heatwaves influence blue whale foraging and reproductive effort Barlow, Dawn R. Klinck, Holger Ponirakis, Dimitri Branch, Trevor A. Torres, Leigh G. 2023-02-26 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9968652/ http://www.ncbi.nlm.nih.gov/pubmed/36861024 https://doi.org/10.1002/ece3.9770 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9968652/ http://www.ncbi.nlm.nih.gov/pubmed/36861024 http://dx.doi.org/10.1002/ece3.9770 © 2023 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Ecol Evol Research Articles Text 2023 ftpubmed https://doi.org/10.1002/ece3.9770 2023-03-05T02:27:11Z Animal behavior is motivated by the fundamental need to feed and reproduce, and these behaviors can be inferred from spatiotemporal variations in biological signals such as vocalizations. Yet, linking foraging and reproductive effort to environmental drivers can be challenging for wide‐ranging predator species. Blue whales are acoustically active marine predators that produce two distinct vocalizations: song and D calls. We examined environmental correlates of these vocalizations using continuous recordings from five hydrophones in the South Taranaki Bight region of Aotearoa New Zealand to investigate call behavior relative to ocean conditions and infer life history patterns. D calls were strongly correlated with oceanographic drivers of upwelling in spring and summer, indicating associations with foraging effort. In contrast, song displayed a highly seasonal pattern with peak intensity in fall, which aligned with the timing of conception inferred from whaling records. Finally, during a marine heatwave, reduced foraging (inferred from D calls) was followed by lower reproductive effort (inferred from song intensity). Text Blue whale PubMed Central (PMC) New Zealand Ecology and Evolution 13 2 |
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Research Articles Barlow, Dawn R. Klinck, Holger Ponirakis, Dimitri Branch, Trevor A. Torres, Leigh G. Environmental conditions and marine heatwaves influence blue whale foraging and reproductive effort |
topic_facet |
Research Articles |
description |
Animal behavior is motivated by the fundamental need to feed and reproduce, and these behaviors can be inferred from spatiotemporal variations in biological signals such as vocalizations. Yet, linking foraging and reproductive effort to environmental drivers can be challenging for wide‐ranging predator species. Blue whales are acoustically active marine predators that produce two distinct vocalizations: song and D calls. We examined environmental correlates of these vocalizations using continuous recordings from five hydrophones in the South Taranaki Bight region of Aotearoa New Zealand to investigate call behavior relative to ocean conditions and infer life history patterns. D calls were strongly correlated with oceanographic drivers of upwelling in spring and summer, indicating associations with foraging effort. In contrast, song displayed a highly seasonal pattern with peak intensity in fall, which aligned with the timing of conception inferred from whaling records. Finally, during a marine heatwave, reduced foraging (inferred from D calls) was followed by lower reproductive effort (inferred from song intensity). |
format |
Text |
author |
Barlow, Dawn R. Klinck, Holger Ponirakis, Dimitri Branch, Trevor A. Torres, Leigh G. |
author_facet |
Barlow, Dawn R. Klinck, Holger Ponirakis, Dimitri Branch, Trevor A. Torres, Leigh G. |
author_sort |
Barlow, Dawn R. |
title |
Environmental conditions and marine heatwaves influence blue whale foraging and reproductive effort |
title_short |
Environmental conditions and marine heatwaves influence blue whale foraging and reproductive effort |
title_full |
Environmental conditions and marine heatwaves influence blue whale foraging and reproductive effort |
title_fullStr |
Environmental conditions and marine heatwaves influence blue whale foraging and reproductive effort |
title_full_unstemmed |
Environmental conditions and marine heatwaves influence blue whale foraging and reproductive effort |
title_sort |
environmental conditions and marine heatwaves influence blue whale foraging and reproductive effort |
publisher |
John Wiley and Sons Inc. |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9968652/ http://www.ncbi.nlm.nih.gov/pubmed/36861024 https://doi.org/10.1002/ece3.9770 |
geographic |
New Zealand |
geographic_facet |
New Zealand |
genre |
Blue whale |
genre_facet |
Blue whale |
op_source |
Ecol Evol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9968652/ http://www.ncbi.nlm.nih.gov/pubmed/36861024 http://dx.doi.org/10.1002/ece3.9770 |
op_rights |
© 2023 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/ece3.9770 |
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Ecology and Evolution |
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13 |
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2 |
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1766379541147680768 |