Key winter habitat of the ivory gull Pagophila eburnea in the Canadian Arctic
The ivory gull Pagophila eburnea is a rare Arctic seabird that breeds in remote locations; little is known of its winter distribution and behaviour. It is listed under Canadian legislation as ëendangeredí, and as ënear threatenedí by the International Union for the Conservation of Nature. A >70%...
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ftdoajarticles:oai:doaj.org/article:d2521edba89649b582d6e6a5d83c7dd4 2023-05-15T14:54:11+02:00 Key winter habitat of the ivory gull Pagophila eburnea in the Canadian Arctic Spencer, NC Gilchrist, HG Ström, H Allard, KA Mallory, ML 2016-09-01T00:00:00Z https://doi.org/10.3354/esr00747 https://doaj.org/article/d2521edba89649b582d6e6a5d83c7dd4 EN eng Inter-Research https://www.int-res.com/abstracts/esr/v31/p33-45/ https://doaj.org/toc/1863-5407 https://doaj.org/toc/1613-4796 1863-5407 1613-4796 doi:10.3354/esr00747 https://doaj.org/article/d2521edba89649b582d6e6a5d83c7dd4 Endangered Species Research, Vol 31, Pp 33-45 (2016) Zoology QL1-991 Botany QK1-989 article 2016 ftdoajarticles https://doi.org/10.3354/esr00747 2022-12-31T05:24:57Z The ivory gull Pagophila eburnea is a rare Arctic seabird that breeds in remote locations; little is known of its winter distribution and behaviour. It is listed under Canadian legislation as ëendangeredí, and as ënear threatenedí by the International Union for the Conservation of Nature. A >70% population decline in the past 3 decades in Canada prompted research on ivory gulls to better understand their year-round movements and habitat requirements. Additionally, the identification of critical habitat is a research priority in the Recovery Strategy for the ivory gull in Canada. We used data from gulls tracked by satellite telemetry from the Canadian Arctic and Svalbard, Norway, as well as data from ship observations collected between 1969 and 2010. We determined that the area of highest use by these gulls in the winter was in Davis Strait, where 90% of their time was spent over sea ice. Agreement of findings among datasets through time and from different breeding regions suggests that the edge of the pack ice in Davis Strait is an annual, key habitat for ivory gulls in winter. Given the proximity of the core wintering area to known hooded seal Crystophora cristata whelping patches, we speculate that remains from seal breeding, as well as polar bear Ursus maritimus kills and pagophilic (ice-loving) fish accessed in the vicinity of pack ice have provided spatially and temporally predictable, and valuable, food resources for ivory gulls in the winter. Article in Journal/Newspaper Arctic Davis Strait hooded seal ivory gull Pagophila eburnea Sea ice Svalbard Ursus maritimus Directory of Open Access Journals: DOAJ Articles Arctic Canada Norway Svalbard Endangered Species Research 31 33 45 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Zoology QL1-991 Botany QK1-989 |
spellingShingle |
Zoology QL1-991 Botany QK1-989 Spencer, NC Gilchrist, HG Ström, H Allard, KA Mallory, ML Key winter habitat of the ivory gull Pagophila eburnea in the Canadian Arctic |
topic_facet |
Zoology QL1-991 Botany QK1-989 |
description |
The ivory gull Pagophila eburnea is a rare Arctic seabird that breeds in remote locations; little is known of its winter distribution and behaviour. It is listed under Canadian legislation as ëendangeredí, and as ënear threatenedí by the International Union for the Conservation of Nature. A >70% population decline in the past 3 decades in Canada prompted research on ivory gulls to better understand their year-round movements and habitat requirements. Additionally, the identification of critical habitat is a research priority in the Recovery Strategy for the ivory gull in Canada. We used data from gulls tracked by satellite telemetry from the Canadian Arctic and Svalbard, Norway, as well as data from ship observations collected between 1969 and 2010. We determined that the area of highest use by these gulls in the winter was in Davis Strait, where 90% of their time was spent over sea ice. Agreement of findings among datasets through time and from different breeding regions suggests that the edge of the pack ice in Davis Strait is an annual, key habitat for ivory gulls in winter. Given the proximity of the core wintering area to known hooded seal Crystophora cristata whelping patches, we speculate that remains from seal breeding, as well as polar bear Ursus maritimus kills and pagophilic (ice-loving) fish accessed in the vicinity of pack ice have provided spatially and temporally predictable, and valuable, food resources for ivory gulls in the winter. |
format |
Article in Journal/Newspaper |
author |
Spencer, NC Gilchrist, HG Ström, H Allard, KA Mallory, ML |
author_facet |
Spencer, NC Gilchrist, HG Ström, H Allard, KA Mallory, ML |
author_sort |
Spencer, NC |
title |
Key winter habitat of the ivory gull Pagophila eburnea in the Canadian Arctic |
title_short |
Key winter habitat of the ivory gull Pagophila eburnea in the Canadian Arctic |
title_full |
Key winter habitat of the ivory gull Pagophila eburnea in the Canadian Arctic |
title_fullStr |
Key winter habitat of the ivory gull Pagophila eburnea in the Canadian Arctic |
title_full_unstemmed |
Key winter habitat of the ivory gull Pagophila eburnea in the Canadian Arctic |
title_sort |
key winter habitat of the ivory gull pagophila eburnea in the canadian arctic |
publisher |
Inter-Research |
publishDate |
2016 |
url |
https://doi.org/10.3354/esr00747 https://doaj.org/article/d2521edba89649b582d6e6a5d83c7dd4 |
geographic |
Arctic Canada Norway Svalbard |
geographic_facet |
Arctic Canada Norway Svalbard |
genre |
Arctic Davis Strait hooded seal ivory gull Pagophila eburnea Sea ice Svalbard Ursus maritimus |
genre_facet |
Arctic Davis Strait hooded seal ivory gull Pagophila eburnea Sea ice Svalbard Ursus maritimus |
op_source |
Endangered Species Research, Vol 31, Pp 33-45 (2016) |
op_relation |
https://www.int-res.com/abstracts/esr/v31/p33-45/ https://doaj.org/toc/1863-5407 https://doaj.org/toc/1613-4796 1863-5407 1613-4796 doi:10.3354/esr00747 https://doaj.org/article/d2521edba89649b582d6e6a5d83c7dd4 |
op_doi |
https://doi.org/10.3354/esr00747 |
container_title |
Endangered Species Research |
container_volume |
31 |
container_start_page |
33 |
op_container_end_page |
45 |
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1766325908948385792 |