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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Online Access: | https://epic.awi.de/id/eprint/45053/ https://www.nature.com/articles/srep04170.pdf https://hdl.handle.net/10013/epic.51262 |
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ftawi:oai:epic.awi.de:45053 2024-09-15T17:43:55+00:00 Counting whales in a challenging, changing environment Williams, R. Kelly, N. Boebel, Olaf Friedlander, A. S. Herr, Helena Kock, K.-H. Lehnert, L. S. Maksym, Ted Roberts, J. Scheidat, M. Siebert, U. Brierley, A. S. 2014 https://epic.awi.de/id/eprint/45053/ https://www.nature.com/articles/srep04170.pdf https://hdl.handle.net/10013/epic.51262 unknown Nature Williams, R. , Kelly, N. , Boebel, O. orcid:0000-0002-2259-0035 , Friedlander, A. S. , Herr, H. , Kock, K. H. , Lehnert, L. S. , Maksym, T. , Roberts, J. , Scheidat, M. , Siebert, U. and Brierley, A. S. (2014) Counting whales in a challenging, changing environment , Scientific Reports, 4 (4170), pp. 1-6 . doi:10.1038/srep04170 <https://doi.org/10.1038/srep04170> , hdl:10013/epic.51262 EPIC3Scientific Reports, Nature, 4(4170), pp. 1-6, ISSN: 2045-2322 Article isiRev 2014 ftawi https://doi.org/10.1038/srep04170 2024-06-24T04:17:43Z 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 Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Scientific Reports 4 1 |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
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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, R. Kelly, N. Boebel, Olaf Friedlander, A. S. Herr, Helena Kock, K.-H. Lehnert, L. S. Maksym, Ted Roberts, J. Scheidat, M. Siebert, U. Brierley, A. S. |
spellingShingle |
Williams, R. Kelly, N. Boebel, Olaf Friedlander, A. S. Herr, Helena Kock, K.-H. Lehnert, L. S. Maksym, Ted Roberts, J. Scheidat, M. Siebert, U. Brierley, A. S. Counting whales in a challenging, changing environment |
author_facet |
Williams, R. Kelly, N. Boebel, Olaf Friedlander, A. S. Herr, Helena Kock, K.-H. Lehnert, L. S. Maksym, Ted 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 |
publishDate |
2014 |
url |
https://epic.awi.de/id/eprint/45053/ https://www.nature.com/articles/srep04170.pdf https://hdl.handle.net/10013/epic.51262 |
genre |
Antarc* Antarctic minke whale Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic minke whale Sea ice Weddell Sea |
op_source |
EPIC3Scientific Reports, Nature, 4(4170), pp. 1-6, ISSN: 2045-2322 |
op_relation |
Williams, R. , Kelly, N. , Boebel, O. orcid:0000-0002-2259-0035 , Friedlander, A. S. , Herr, H. , Kock, K. H. , Lehnert, L. S. , Maksym, T. , Roberts, J. , Scheidat, M. , Siebert, U. and Brierley, A. S. (2014) Counting whales in a challenging, changing environment , Scientific Reports, 4 (4170), pp. 1-6 . doi:10.1038/srep04170 <https://doi.org/10.1038/srep04170> , hdl:10013/epic.51262 |
op_doi |
https://doi.org/10.1038/srep04170 |
container_title |
Scientific Reports |
container_volume |
4 |
container_issue |
1 |
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1810491147354636288 |