An on-ice aerial survey of the Kane Basin polar bear (Ursus maritimus) subpopulation
Abstract There is an imminent need to collect information on distribution and abundance of polar bears ( Ursus maritimus ) to understand how they are affected by the ongoing decrease in Arctic sea ice. The Kane Basin (KB) subpopulation is a group of high-latitude polar bears that ranges between High...
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ftoslouniv:oai:www.duo.uio.no:10852/92102 2023-05-15T14:56:08+02:00 An on-ice aerial survey of the Kane Basin polar bear (Ursus maritimus) subpopulation Wiig, Øystein Atkinson, Stephen N. Born, Erik W Stapleton, Seth Arnold, Todd Dyck, Markus Laidre, Kristin L. Lunn, Nicholas J. Regehr, Eric V. 2022-02-08T11:44:36Z http://hdl.handle.net/10852/92102 http://urn.nb.no/URN:NBN:no-94729 https://doi.org/10.1007/s00300-021-02974-6 EN eng http://urn.nb.no/URN:NBN:no-94729 Wiig, Øystein Atkinson, Stephen N. Born, Erik W Stapleton, Seth Arnold, Todd Dyck, Markus Laidre, Kristin L. Lunn, Nicholas J. Regehr, Eric V. . An on-ice aerial survey of the Kane Basin polar bear (Ursus maritimus) subpopulation. Polar Biology. 2021 http://hdl.handle.net/10852/92102 1999011 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Polar Biology&rft.volume=&rft.spage=&rft.date=2021 Polar Biology 45 1 89 100 https://doi.org/10.1007/s00300-021-02974-6 URN:NBN:no-94729 Fulltext https://www.duo.uio.no/bitstream/handle/10852/92102/1/Wiig2022_Article_AnOn-iceAerialSurveyOfTheKaneB.pdf Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY 0722-4060 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2022 ftoslouniv https://doi.org/10.1007/s00300-021-02974-6 2022-03-09T23:33:54Z Abstract There is an imminent need to collect information on distribution and abundance of polar bears ( Ursus maritimus ) to understand how they are affected by the ongoing decrease in Arctic sea ice. The Kane Basin (KB) subpopulation is a group of high-latitude polar bears that ranges between High Arctic Canada and NW Greenland around and north of the North Water polynya (NOW). We conducted a line transect distance sampling aerial survey of KB polar bears during 28 April–12 May 2014. A total of 4160 linear kilometers were flown in a helicopter over fast ice in the fjords and over offshore pack ice between 76° 50′ and 80° N′. Using a mark-recapture distance sampling protocol, the estimated abundance was 190 bears (95% lognormal CI: 87–411; CV 39%). This estimate is likely negatively biased to an unknown degree because the offshore sectors of the NOW with much open water were not surveyed because of logistical and safety reasons. Our study demonstrated that aerial surveys may be a feasible method for obtaining abundance estimates for small subpopulations of polar bears. Article in Journal/Newspaper Arctic Greenland Kane Basin Polar Biology Sea ice Ursus maritimus Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Arctic Canada Greenland Kane ENVELOPE(-63.038,-63.038,-73.952,-73.952) Polar Biology 45 1 89 100 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
Abstract There is an imminent need to collect information on distribution and abundance of polar bears ( Ursus maritimus ) to understand how they are affected by the ongoing decrease in Arctic sea ice. The Kane Basin (KB) subpopulation is a group of high-latitude polar bears that ranges between High Arctic Canada and NW Greenland around and north of the North Water polynya (NOW). We conducted a line transect distance sampling aerial survey of KB polar bears during 28 April–12 May 2014. A total of 4160 linear kilometers were flown in a helicopter over fast ice in the fjords and over offshore pack ice between 76° 50′ and 80° N′. Using a mark-recapture distance sampling protocol, the estimated abundance was 190 bears (95% lognormal CI: 87–411; CV 39%). This estimate is likely negatively biased to an unknown degree because the offshore sectors of the NOW with much open water were not surveyed because of logistical and safety reasons. Our study demonstrated that aerial surveys may be a feasible method for obtaining abundance estimates for small subpopulations of polar bears. |
format |
Article in Journal/Newspaper |
author |
Wiig, Øystein Atkinson, Stephen N. Born, Erik W Stapleton, Seth Arnold, Todd Dyck, Markus Laidre, Kristin L. Lunn, Nicholas J. Regehr, Eric V. |
spellingShingle |
Wiig, Øystein Atkinson, Stephen N. Born, Erik W Stapleton, Seth Arnold, Todd Dyck, Markus Laidre, Kristin L. Lunn, Nicholas J. Regehr, Eric V. An on-ice aerial survey of the Kane Basin polar bear (Ursus maritimus) subpopulation |
author_facet |
Wiig, Øystein Atkinson, Stephen N. Born, Erik W Stapleton, Seth Arnold, Todd Dyck, Markus Laidre, Kristin L. Lunn, Nicholas J. Regehr, Eric V. |
author_sort |
Wiig, Øystein |
title |
An on-ice aerial survey of the Kane Basin polar bear (Ursus maritimus) subpopulation |
title_short |
An on-ice aerial survey of the Kane Basin polar bear (Ursus maritimus) subpopulation |
title_full |
An on-ice aerial survey of the Kane Basin polar bear (Ursus maritimus) subpopulation |
title_fullStr |
An on-ice aerial survey of the Kane Basin polar bear (Ursus maritimus) subpopulation |
title_full_unstemmed |
An on-ice aerial survey of the Kane Basin polar bear (Ursus maritimus) subpopulation |
title_sort |
on-ice aerial survey of the kane basin polar bear (ursus maritimus) subpopulation |
publishDate |
2022 |
url |
http://hdl.handle.net/10852/92102 http://urn.nb.no/URN:NBN:no-94729 https://doi.org/10.1007/s00300-021-02974-6 |
long_lat |
ENVELOPE(-63.038,-63.038,-73.952,-73.952) |
geographic |
Arctic Canada Greenland Kane |
geographic_facet |
Arctic Canada Greenland Kane |
genre |
Arctic Greenland Kane Basin Polar Biology Sea ice Ursus maritimus |
genre_facet |
Arctic Greenland Kane Basin Polar Biology Sea ice Ursus maritimus |
op_source |
0722-4060 |
op_relation |
http://urn.nb.no/URN:NBN:no-94729 Wiig, Øystein Atkinson, Stephen N. Born, Erik W Stapleton, Seth Arnold, Todd Dyck, Markus Laidre, Kristin L. Lunn, Nicholas J. Regehr, Eric V. . An on-ice aerial survey of the Kane Basin polar bear (Ursus maritimus) subpopulation. Polar Biology. 2021 http://hdl.handle.net/10852/92102 1999011 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Polar Biology&rft.volume=&rft.spage=&rft.date=2021 Polar Biology 45 1 89 100 https://doi.org/10.1007/s00300-021-02974-6 URN:NBN:no-94729 Fulltext https://www.duo.uio.no/bitstream/handle/10852/92102/1/Wiig2022_Article_AnOn-iceAerialSurveyOfTheKaneB.pdf |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s00300-021-02974-6 |
container_title |
Polar Biology |
container_volume |
45 |
container_issue |
1 |
container_start_page |
89 |
op_container_end_page |
100 |
_version_ |
1766328162669559808 |