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Author
Title Ecological Dynamics Across the Arctic Associated with Recent Climate Change Type Journal
Year 2009 Publication Science Abbreviated Journal
Volume 325 Issue 5946 Pages 1355-1358
Keywords
Abstract At the close of the Fourth International Polar Year, we take stock of the ecological consequences of recent climate change in the Arctic, focusing on effects at population, community, and ecosystem scales. Despite the buffering effect of landscape heterogeneity, Arctic ecosystems and the trophic relationships that structure them have been severely perturbed. These rapid changes may be a bellwether of changes to come at lower latitudes and have the potential to affect ecosystem services related to natural resources, food production, climate regulation, and cultural integrity. We highlight areas of ecological research that deserve priority as the Arctic continues to warm.
Programme (up) 1036
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ISSN 0036-8075, 1095-9203 ISBN 0036-8075, 1095-9203 Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 7250
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Author
Title Type Journal
Year 2009 Publication Global Change Biology Abbreviated Journal
Volume 15 Issue 11 Pages 2634-2652
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Programme (up) 1036
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Language Summary Language Original Title
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Series Volume Series Issue Edition
ISSN 1365-2486 ISBN 1365-2486 Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 7251
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Author Olivier Gilg, Nigel G. Yoccoz
Title Explaining Bird Migration Type Journal
Year 2010 Publication Science Abbreviated Journal
Volume 327 Issue 5963 Pages 276-277
Keywords
Abstract Arctic shorebirds can travel tens of thousands of kilometers every year as they fly along intercontinental flyways from their southern wintering grounds to their remote, harsh breeding sites. How these birds solve the navigational and physiological constraints has been largely answered, but why they migrate is still a question with many possible answers (1). On page 326 of this issue, McKinnon et al. (2) present a continent-wide study that points to predation as a driving mechanism for migration. The study also elucidates the role of predation in shaping Arctic terrestrial biodiversity. Predation pressure falls with increasing latitude, helping to explain why many birds migrate as far north as the high Arctic. Predation pressure falls with increasing latitude, helping to explain why many birds migrate as far north as the high Arctic.
Programme (up) 1036
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Corporate Author Thesis Bachelor's thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0036-8075, 1095-9203 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 7252
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Author
Title Type Journal
Year 2019 Publication Science Abbreviated Journal
Volume 364 Issue 6445 Pages
Keywords
Abstract Kubelka et al. (Reports, 9 November 2018, p. 680) claim that climate change has disrupted patterns of nest predation in shorebirds. They report that predation rates have increased since the 1950s, especially in the Arctic. We describe methodological problems with their analyses and argue that there is no solid statistical support for their claims.
Programme (up) 1036
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN 0036-8075, 1095-9203 ISBN 0036-8075, 1095-9203 Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 3961
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Author Richard, Y.
Title Détermination du statut parasitaire de trois populations de lemming à collier en relation avec leurs densités Type Master 2
Year 2012 Publication Abbreviated Journal
Volume Issue Pages
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Programme (up) 1036
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Notes Approved yes
Call Number Serial 7256
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Author
Title Post-breeding migration of four Long-tailed Skuas (Stercorarius longicaudus) from North and East Greenland to West Africa Type Journal
Year 2011 Publication Journal of Ornithology Abbreviated Journal
Volume 152 Issue 2 Pages 375-381
Keywords Greenland Long-tailed Skua Post-breeding migration Rates of travel Satellite tracking Staging area Upwelling
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Programme (up) 1036
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Language Summary Language Original Title
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Series Volume Series Issue Edition
ISSN 1439-0361 ISBN 1439-0361 Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 7269
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Author Perroud, Lucie
Title Etude des stratégies de soins parentaux des limicoles en région arctique: le cas du bécasseau sanderling (Calidris alba) Type Master 2
Year 2014 Publication Abbreviated Journal
Volume Issue Pages
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Programme (up) 1036
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Notes Approved yes
Call Number Serial 7271
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Author
Title Exposing the structure of an Arctic food web Type Journal
Year 2015 Publication Ecology and Evolution Abbreviated Journal
Volume 5 Issue 17 Pages 3842-3856
Keywords Calidris DNA barcoding generalism Greenland Hymenoptera molecular diet analysis Pardosa Plectrophenax specialism Xysticus
Abstract Abstract How food webs are structured has major implications for their stability and dynamics. While poorly studied to date, arctic food webs are commonly assumed to be simple in structure, with few links per species. If this is the case, then different parts of the web may be weakly connected to each other, with populations and species united by only a low number of links. We provide the first highly resolved description of trophic link structure for a large part of a high-arctic food web. For this purpose, we apply a combination of recent techniques to describing the links between three predator guilds (insectivorous birds, spiders, and lepidopteran parasitoids) and their two dominant prey orders (Diptera and Lepidoptera). The resultant web shows a dense link structure and no compartmentalization or modularity across the three predator guilds. Thus, both individual predators and predator guilds tap heavily into the prey community of each other, offering versatile scope for indirect interactions across different parts of the web. The current description of a first but single arctic web may serve as a benchmark toward which to gauge future webs resolved by similar techniques. Targeting an unusual breadth of predator guilds, and relying on techniques with a high resolution, it suggests that species in this web are closely connected. Thus, our findings call for similar explorations of link structure across multiple guilds in both arctic and other webs. From an applied perspective, our description of an arctic web suggests new avenues for understanding how arctic food webs are built and function and of how they respond to current climate change. It suggests that to comprehend the community-level consequences of rapid arctic warming, we should turn from analyses of populations, population pairs, and isolated predator?prey interactions to considering the full set of interacting species.
Programme (up) 1036
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2045-7758 ISBN 2045-7758 Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 7282
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Author Andreassen P.
Title A retrospective study of the endoparasitic Helminths present in faeces of Arctic Fox (Vulpes lagopus) from Northeastern Greenland Type Master 2
Year 2015 Publication Abbreviated Journal
Volume Issue Pages
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Programme (up) 1036
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Area Expedition Conference
Notes Approved yes
Call Number Serial 7284
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Author
Title Effects of food abundance and early clutch predation on reproductive timing in a high Arctic shorebird exposed to advancements in arthropod abundance Type Journal
Year 2016 Publication Ecology and Evolution Abbreviated Journal
Volume 6 Issue 20 Pages 7375-7386
Keywords Bird migration Calidris alba chick growth climate change nest survival phenology timing trophic interactions trophic mismatch
Abstract Climate change may influence the phenology of organisms unequally across trophic levels and thus lead to phenological mismatches between predators and prey. In cases where prey availability peaks before reproducing predators reach maximal prey demand, any negative fitness consequences would selectively favor resynchronization by earlier starts of the reproductive activities of the predators. At a study site in northeast Greenland, over a period of 17 years, the median emergence of the invertebrate prey of Sanderling Calidris alba advanced with 1.27 days per year. Yet, over the same period Sanderling did not advance hatching date. Thus, Sanderlings increasingly hatched after their prey was maximally abundant. Surprisingly, the phenological mismatches did not affect chick growth, but the interaction of the annual width and height of the peak in food abundance did. Chicks grew especially better in years when the food peak was broad. Sanderling clutches were most likely to be depredated early in the season, which should delay reproduction. We propose that high early clutch predation may favor a later reproductive timing. Additionally, our data suggest that in most years food was still abundant after the median date of emergence, which may explain why Sanderlings did not advance breeding along with the advances in arthropod phenology.
Programme (up) 1036
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Corporate Author Thesis
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2045-7758 ISBN 2045-7758 Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 7306
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