气候变化领域集成服务门户(CCPortal): Intracolony variability in winter feeding and migration strategies of Atlantic puffins and black-legged kittiwakes

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DOI	10.1007/s00227-023-04384-0
	Intracolony variability in winter feeding and migration strategies of Atlantic puffins and black-legged kittiwakes
	Charrier, Julie; Anker-Nilssen, Tycho; Fort, Jerome; Jessopp, Mark; Strom, Hallvard; Espinasse, Boris
发表日期	2024
ISSN	0025-3162
EISSN	1432-1793
起始页码	171
结束页码	4
卷号	171 期号:4
英文摘要	Polar ecosystems are subjected to many stressors, including climate change, that impact their overall functioning. Seabirds are good bioindicators of these systems as they readily respond to changes in environmental conditions. To quantify how environmental changes affect their life history, data on seabird diet, spatial distribution and body condition are needed to reveal the underlying mechanisms. We explored possible drivers of the winter distribution of single-colony populations of Atlantic puffins Fratercula arctica and black-legged kittiwakes Rissa tridactyla, two of the most numerous seabird species in the North Atlantic. Based on carbon and nitrogen stable isotopic data from feathers moulted during winter migration, we identified three groups of Atlantic puffins and two groups of black-legged kittiwakes occupying different isotopic niches. We then used geolocator tracking data for the same birds to determine if these groups reflected parallel differences in the location of moulting grounds rather than differences in their diet. We found that the isotopic niches of the three Atlantic puffin groups likely resulted from their use of different habitats during winter moult. In contrast, the isotopic niches of the two black-legged kittiwake groups were more likely a result of differences in their diet, as both groups were distributed in the same area. These findings suggest that different winter feeding and/or migration strategies may play a role in shaping the body condition of individuals for their following breeding season. We discuss the role of environmental conditions encountered by seabirds during winter migration to further elucidate such intracolony divergence in strategies. As polar ecosystems experience rapid changes in environmental conditions, the approach presented here may provide valuable information for the development of effective conservation measures (taking both intra- and intercolony variability into account), and to better predict future impacts of climate change.
英文关键词	Seabirds; Environmental conditions; Stable isotopes; Winter diet; Geolocator tracking; Carry-over effects
语种	英语
WOS研究方向	Marine & Freshwater Biology
WOS类目	Marine & Freshwater Biology
WOS记录号	WOS:001169587300001
来源期刊	MARINE BIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/290736
作者单位	UiT The Arctic University of Tromso; Centre National de la Recherche Scientifique (CNRS); CNRS - Institute of Ecology & Environment (INEE); Norwegian Institute Nature Research; University College Cork; Norwegian Polar Institute
推荐引用方式 GB/T 7714	Charrier, Julie,Anker-Nilssen, Tycho,Fort, Jerome,et al. Intracolony variability in winter feeding and migration strategies of Atlantic puffins and black-legged kittiwakes[J],2024,171(4).
APA	Charrier, Julie,Anker-Nilssen, Tycho,Fort, Jerome,Jessopp, Mark,Strom, Hallvard,&Espinasse, Boris.(2024).Intracolony variability in winter feeding and migration strategies of Atlantic puffins and black-legged kittiwakes.MARINE BIOLOGY,171(4).
MLA	Charrier, Julie,et al."Intracolony variability in winter feeding and migration strategies of Atlantic puffins and black-legged kittiwakes".MARINE BIOLOGY 171.4(2024).