Counting whales in a challenging, changing environment
Estimating abundance of Antarctic minke whales is central to the International Whaling Commission's conservation and management work and understanding impacts of climate change on polar marine ecosystems. Detecting abundance trends is problematic, in part because minke whales are frequently sig...
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ftpubmed:oai:pubmedcentral.nih.gov:3952195 2023-05-15T13:47:40+02:00 Counting whales in a challenging, changing environment Williams, R. Kelly, N. Boebel, O. Friedlaender, A. S. Herr, H. Kock, K.-H. Lehnert, L. S. Maksym, T. Roberts, J. Scheidat, M. Siebert, U. Brierley, A. S. 2014-03-13 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3952195 http://www.ncbi.nlm.nih.gov/pubmed/24622821 https://doi.org/10.1038/srep04170 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3952195 http://www.ncbi.nlm.nih.gov/pubmed/24622821 http://dx.doi.org/10.1038/srep04170 Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/ CC-BY-NC-ND Article Text 2014 ftpubmed https://doi.org/10.1038/srep04170 2014-03-23T01:38:18Z Estimating abundance of Antarctic minke whales is central to the International Whaling Commission's conservation and management work and understanding impacts of climate change on polar marine ecosystems. Detecting abundance trends is problematic, in part because minke whales are frequently sighted within Antarctic sea ice where navigational safety concerns prevent ships from surveying. Using icebreaker-supported helicopters, we conducted aerial surveys across a gradient of ice conditions to estimate minke whale density in the Weddell Sea. The surveys revealed substantial numbers of whales inside the sea ice. The Antarctic summer sea ice is undergoing rapid regional change in annual extent, distribution, and length of ice-covered season. These trends, along with substantial interannual variability in ice conditions, affect the proportion of whales available to be counted by traditional shipboard surveys. The strong association between whales and the dynamic, changing sea ice requires reexamination of the power to detect trends in whale abundance or predict ecosystem responses to climate change. Text Antarc* Antarctic minke whale Sea ice Weddell Sea PubMed Central (PMC) Antarctic The Antarctic Weddell Weddell Sea Scientific Reports 4 1 |
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Article Williams, R. Kelly, N. Boebel, O. Friedlaender, A. S. Herr, H. Kock, K.-H. Lehnert, L. S. Maksym, T. Roberts, J. Scheidat, M. Siebert, U. Brierley, A. S. Counting whales in a challenging, changing environment |
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Estimating abundance of Antarctic minke whales is central to the International Whaling Commission's conservation and management work and understanding impacts of climate change on polar marine ecosystems. Detecting abundance trends is problematic, in part because minke whales are frequently sighted within Antarctic sea ice where navigational safety concerns prevent ships from surveying. Using icebreaker-supported helicopters, we conducted aerial surveys across a gradient of ice conditions to estimate minke whale density in the Weddell Sea. The surveys revealed substantial numbers of whales inside the sea ice. The Antarctic summer sea ice is undergoing rapid regional change in annual extent, distribution, and length of ice-covered season. These trends, along with substantial interannual variability in ice conditions, affect the proportion of whales available to be counted by traditional shipboard surveys. The strong association between whales and the dynamic, changing sea ice requires reexamination of the power to detect trends in whale abundance or predict ecosystem responses to climate change. |
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Text |
author |
Williams, R. Kelly, N. Boebel, O. Friedlaender, A. S. Herr, H. Kock, K.-H. Lehnert, L. S. Maksym, T. Roberts, J. Scheidat, M. Siebert, U. Brierley, A. S. |
author_facet |
Williams, R. Kelly, N. Boebel, O. Friedlaender, A. S. Herr, H. Kock, K.-H. Lehnert, L. S. Maksym, T. Roberts, J. Scheidat, M. Siebert, U. Brierley, A. S. |
author_sort |
Williams, R. |
title |
Counting whales in a challenging, changing environment |
title_short |
Counting whales in a challenging, changing environment |
title_full |
Counting whales in a challenging, changing environment |
title_fullStr |
Counting whales in a challenging, changing environment |
title_full_unstemmed |
Counting whales in a challenging, changing environment |
title_sort |
counting whales in a challenging, changing environment |
publisher |
Nature Publishing Group |
publishDate |
2014 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3952195 http://www.ncbi.nlm.nih.gov/pubmed/24622821 https://doi.org/10.1038/srep04170 |
geographic |
Antarctic The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic minke whale Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic minke whale Sea ice Weddell Sea |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3952195 http://www.ncbi.nlm.nih.gov/pubmed/24622821 http://dx.doi.org/10.1038/srep04170 |
op_rights |
Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/ |
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CC-BY-NC-ND |
op_doi |
https://doi.org/10.1038/srep04170 |
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Scientific Reports |
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4 |
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1 |
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1766247671845093376 |