Arctic seabirds and shrinking sea ice: egg analyses reveal the importance of ice-derived resources

In the Arctic, sea-ice plays a central role in the functioning of marine food webs and its rapid shrinking has large effects on the biota. It is thus crucial to assess the importance of sea-ice and ice-derived resources to Arctic marine species. Here, we used a multi-biomarker approach combining Hig...

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Bibliographic Details
Published in:Scientific Reports
Main Authors: Cusset, F. (Fanny), Fort, J. (Jérôme), Mallory, M. (Mark), Braune, B.M. (Birgit M.), Massicotte, P. (Philippe), Massé, G. (Guillaume)
Format: Article in Journal/Newspaper
Language:English
Published: 2019
Subjects:
Arctic
Sea ice
Online Access:https://ir.library.carleton.ca/pub/25599
https://doi.org/10.1038/s41598-019-51788-4
Description
Summary:In the Arctic, sea-ice plays a central role in the functioning of marine food webs and its rapid shrinking has large effects on the biota. It is thus crucial to assess the importance of sea-ice and ice-derived resources to Arctic marine species. Here, we used a multi-biomarker approach combining Highly Branched Isoprenoids (HBIs) with δ13C and δ15N to evaluate how much Arctic seabirds rely on sea-ice derived resources during the pre-laying period, and if changes in sea-ice extent and duration affect their investment in reproduction. Egg

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