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 sighted...
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ftopenagrar:oai:www.openagrar.de:timport_mods_00037928 2024-09-15T17:44:54+00:00 Counting whales in a challenging, changing environment Williams, Rob Kelly, Natalie Boebel, Olaf Friedlaender, Ari S. Feindt-Herr, Helena Kock, Karl-Hermann Lehnert, Linn Sophia Maksym, Ted Roberts, Jason Scheidat, Meike Siebert, Ursula Brierley, Abdrew Stuart 2014 https://doi.org/10.1038/srep04170 https://www.openagrar.de/receive/timport_mods_00037928 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00037928/dn053391.pdf http://www.nature.com/srep/2014/140313/srep04170/full/srep04170.html eng eng Scientific Reports -- Sci Rep -- 2045-2322 -- 2615211-3 -- http://www.nature.com/srep/ -- http://www.bibliothek.uni-regensburg.de/ezeit/?2615211 https://doi.org/10.1038/srep04170 https://www.openagrar.de/receive/timport_mods_00037928 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00037928/dn053391.pdf http://www.nature.com/srep/2014/140313/srep04170/full/srep04170.html public info:eu-repo/semantics/openAccess article Text article Text doc-type:article 2014 ftopenagrar https://doi.org/10.1038/srep04170 2024-07-08T23:56:24Z 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. Article in Journal/Newspaper Antarc* Antarctic minke whale Sea ice Weddell Sea OpenAgrar (OA) Scientific Reports 4 1 |
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article Text Williams, Rob Kelly, Natalie Boebel, Olaf Friedlaender, Ari S. Feindt-Herr, Helena Kock, Karl-Hermann Lehnert, Linn Sophia Maksym, Ted Roberts, Jason Scheidat, Meike Siebert, Ursula Brierley, Abdrew Stuart Counting whales in a challenging, changing environment |
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description |
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. |
format |
Article in Journal/Newspaper |
author |
Williams, Rob Kelly, Natalie Boebel, Olaf Friedlaender, Ari S. Feindt-Herr, Helena Kock, Karl-Hermann Lehnert, Linn Sophia Maksym, Ted Roberts, Jason Scheidat, Meike Siebert, Ursula Brierley, Abdrew Stuart |
author_facet |
Williams, Rob Kelly, Natalie Boebel, Olaf Friedlaender, Ari S. Feindt-Herr, Helena Kock, Karl-Hermann Lehnert, Linn Sophia Maksym, Ted Roberts, Jason Scheidat, Meike Siebert, Ursula Brierley, Abdrew Stuart |
author_sort |
Williams, Rob |
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 |
publishDate |
2014 |
url |
https://doi.org/10.1038/srep04170 https://www.openagrar.de/receive/timport_mods_00037928 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00037928/dn053391.pdf http://www.nature.com/srep/2014/140313/srep04170/full/srep04170.html |
genre |
Antarc* Antarctic minke whale Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic minke whale Sea ice Weddell Sea |
op_relation |
Scientific Reports -- Sci Rep -- 2045-2322 -- 2615211-3 -- http://www.nature.com/srep/ -- http://www.bibliothek.uni-regensburg.de/ezeit/?2615211 https://doi.org/10.1038/srep04170 https://www.openagrar.de/receive/timport_mods_00037928 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00037928/dn053391.pdf http://www.nature.com/srep/2014/140313/srep04170/full/srep04170.html |
op_rights |
public info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/srep04170 |
container_title |
Scientific Reports |
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4 |
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1 |
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1810492594339184640 |