Supplementary material from "Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya"
High Arctic polynyas are predictable areas of open water, which offer long-distance migrant seabirds a reliable source of food during a period when they have to replenish and accumulate energy for reproduction. Investigating the interaction between species nesting sympatrically in the vicinity of po...
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ftdatacite:10.6084/m9.figshare.c.3711976 2023-05-15T14:34:49+02:00 Supplementary material from "Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya" Pratte, Isabeau Boadway, Kelly A. Davis, Shanti E. Maftei, Mark Mallory, Mark L. 2017 https://dx.doi.org/10.6084/m9.figshare.c.3711976 https://figshare.com/collections/Supplementary_material_from_Diet_dichotomy_between_two_migrant_seabirds_breeding_near_a_high_Arctic_polynya_/3711976 unknown Figshare https://dx.doi.org/10.1098/rsos.160982 CC BY https://creativecommons.org/licenses/by/4.0 CC-BY Ecology FOS Biological sciences Collection article 2017 ftdatacite https://doi.org/10.6084/m9.figshare.c.3711976 https://doi.org/10.1098/rsos.160982 2021-11-05T12:55:41Z High Arctic polynyas are predictable areas of open water, which offer long-distance migrant seabirds a reliable source of food during a period when they have to replenish and accumulate energy for reproduction. Investigating the interaction between species nesting sympatrically in the vicinity of polynyas should provide insights into the role that such oceanographic features play for pre-breeding seabirds. We used stable isotopes (δ 13 C and δ 15 N) to compare the diet of two ground-nesting seabirds, Sabine's gull ( Xema sabini ) and Arctic tern ( Sterna paradisaea ), nesting on an island adjacent to a recurring polynya in the Canadian high Arctic in 2008 and 2009. We show that, unlike Arctic terns, the diet of Sabine's gulls appears to include a non-negligible amount of terrestrially derived prey during early incubation, and that overall both species segregate their dietary niche during pre-laying and early incubation. Article in Journal/Newspaper Arctic Arctic tern Sabine's Gull Sterna paradisaea Xema sabini DataCite Metadata Store (German National Library of Science and Technology) Arctic |
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DataCite Metadata Store (German National Library of Science and Technology) |
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Ecology FOS Biological sciences |
spellingShingle |
Ecology FOS Biological sciences Pratte, Isabeau Boadway, Kelly A. Davis, Shanti E. Maftei, Mark Mallory, Mark L. Supplementary material from "Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya" |
topic_facet |
Ecology FOS Biological sciences |
description |
High Arctic polynyas are predictable areas of open water, which offer long-distance migrant seabirds a reliable source of food during a period when they have to replenish and accumulate energy for reproduction. Investigating the interaction between species nesting sympatrically in the vicinity of polynyas should provide insights into the role that such oceanographic features play for pre-breeding seabirds. We used stable isotopes (δ 13 C and δ 15 N) to compare the diet of two ground-nesting seabirds, Sabine's gull ( Xema sabini ) and Arctic tern ( Sterna paradisaea ), nesting on an island adjacent to a recurring polynya in the Canadian high Arctic in 2008 and 2009. We show that, unlike Arctic terns, the diet of Sabine's gulls appears to include a non-negligible amount of terrestrially derived prey during early incubation, and that overall both species segregate their dietary niche during pre-laying and early incubation. |
format |
Article in Journal/Newspaper |
author |
Pratte, Isabeau Boadway, Kelly A. Davis, Shanti E. Maftei, Mark Mallory, Mark L. |
author_facet |
Pratte, Isabeau Boadway, Kelly A. Davis, Shanti E. Maftei, Mark Mallory, Mark L. |
author_sort |
Pratte, Isabeau |
title |
Supplementary material from "Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya" |
title_short |
Supplementary material from "Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya" |
title_full |
Supplementary material from "Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya" |
title_fullStr |
Supplementary material from "Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya" |
title_full_unstemmed |
Supplementary material from "Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya" |
title_sort |
supplementary material from "diet dichotomy between two migrant seabirds breeding near a high arctic polynya" |
publisher |
Figshare |
publishDate |
2017 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.3711976 https://figshare.com/collections/Supplementary_material_from_Diet_dichotomy_between_two_migrant_seabirds_breeding_near_a_high_Arctic_polynya_/3711976 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic tern Sabine's Gull Sterna paradisaea Xema sabini |
genre_facet |
Arctic Arctic tern Sabine's Gull Sterna paradisaea Xema sabini |
op_relation |
https://dx.doi.org/10.1098/rsos.160982 |
op_rights |
CC BY https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.3711976 https://doi.org/10.1098/rsos.160982 |
_version_ |
1766307780941053952 |