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DOI:	10.1371/journal.pone.0115231
论文题名:	Annual Movement Patterns of Endangered Ivory Gulls: The Importance of Sea Ice
作者:	Nora C. Spencer; H. Grant Gilchrist; Mark L. Mallory
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-12-31
卷:	9, 期:12
语种:	英语
英文关键词:	Gulls ; Animal migration ; Sea ice ; Animal sexual behavior ; Seabirds ; Birds ; Sea water ; Foraging
英文摘要:	The ivory gull (Pagophila eburnea) is an endangered seabird that spends its entire year in the Arctic environment. In the past three decades, threats from various sources have contributed to a >70% decline in Canada. To assess the annual habitat needs of this species, we attached satellite transmitters to 12 ivory gulls on Seymour Island, Nunavut in 2010, which provided up to four breeding seasons of tracking data. Analysis of migratory behaviour revealed considerable individual variation of post-breeding migratory route selection. Ivory gulls traveled a median of 74 days during post-breeding migration, but only 18 days during pre-breeding migration. In contrast to predictions, ivory gulls did not use the Greenland coast during migratory periods. Ivory gulls overwintered near the ice edge in Davis Strait, but also used the Labrador Sea in late February and March. We suggest that the timing of formation and recession and extent of sea ice plays a large role in ivory gull distribution and migratory timing.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0115231&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/19384
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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journal.pone.0115231.PDF（2992KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Department of Biology, Acadia University, Wolfville, Nova Scotia, Canada;Environment Canada, National Wildlife Research Centre, Carleton University, Ottawa, Ontario, Canada;Department of Biology, Acadia University, Wolfville, Nova Scotia, Canada

Recommended Citation:

Nora C. Spencer,H. Grant Gilchrist,Mark L. Mallory. Annual Movement Patterns of Endangered Ivory Gulls: The Importance of Sea Ice[J]. PLOS ONE,2014-01-01,9(12)

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