Data 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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ftdryad:oai:v1.datadryad.org:10255/dryad.132538 2023-05-15T14:25:50+02:00 Data 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. Canadian high Arctic 2017-02-21T15:07:53Z http://hdl.handle.net/10255/dryad.132538 https://doi.org/10.5061/dryad.n2d15 unknown doi:10.5061/dryad.n2d15/1 doi:10.5061/dryad.n2d15/2 doi:10.1098/rsos.160982 doi:10.5061/dryad.n2d15 Pratte I, Boadway KA, Davis SE, Maftei M, Mallory ML (2017) Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya. Royal Society Open Science 4(3): 160982. 2054-5703 http://hdl.handle.net/10255/dryad.132538 niche segregation stable isotopes Sabine's gull Arctic tern incubation Article 2017 ftdryad https://doi.org/10.5061/dryad.n2d15 https://doi.org/10.5061/dryad.n2d15/1 https://doi.org/10.5061/dryad.n2d15/2 https://doi.org/10.1098/rsos.160982 2020-01-01T15:43:47Z 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 (δ13C and δ15N) 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 Arctic tern Sabine's Gull Sterna paradisaea Xema sabini Dryad Digital Repository (Duke University) Arctic |
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Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
niche segregation stable isotopes Sabine's gull Arctic tern incubation |
spellingShingle |
niche segregation stable isotopes Sabine's gull Arctic tern incubation Pratte, Isabeau Boadway, Kelly A. Davis, Shanti E. Maftei, Mark Mallory, Mark L. Data from: Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya |
topic_facet |
niche segregation stable isotopes Sabine's gull Arctic tern incubation |
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 (δ13C and δ15N) 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 |
Data from: Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya |
title_short |
Data from: Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya |
title_full |
Data from: Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya |
title_fullStr |
Data from: Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya |
title_full_unstemmed |
Data from: Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya |
title_sort |
data from: diet dichotomy between two migrant seabirds breeding near a high arctic polynya |
publishDate |
2017 |
url |
http://hdl.handle.net/10255/dryad.132538 https://doi.org/10.5061/dryad.n2d15 |
op_coverage |
Canadian high Arctic |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Arctic tern Sabine's Gull Sterna paradisaea Xema sabini |
genre_facet |
Arctic Arctic Arctic tern Sabine's Gull Sterna paradisaea Xema sabini |
op_relation |
doi:10.5061/dryad.n2d15/1 doi:10.5061/dryad.n2d15/2 doi:10.1098/rsos.160982 doi:10.5061/dryad.n2d15 Pratte I, Boadway KA, Davis SE, Maftei M, Mallory ML (2017) Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya. Royal Society Open Science 4(3): 160982. 2054-5703 http://hdl.handle.net/10255/dryad.132538 |
op_doi |
https://doi.org/10.5061/dryad.n2d15 https://doi.org/10.5061/dryad.n2d15/1 https://doi.org/10.5061/dryad.n2d15/2 https://doi.org/10.1098/rsos.160982 |
_version_ |
1766298303197085696 |