Energetic consequences of contrasting winter migratory strategies in a sympatric Arctic seabird duet
At the onset of winter, warm‐blooded animals inhabiting seasonal environments may remain resident and face poorer climatic conditions, or migrate towards more favourable habitats. While the origins and evolution of migratory choices have been extensively studied, their consequences on avian energy b...
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crwiley:10.1111/j.1600-048x.2012.00128.x 2024-06-23T07:50:13+00:00 Energetic consequences of contrasting winter migratory strategies in a sympatric Arctic seabird duet Fort, Jérôme Steen, Harald Strøm, Hallvard Tremblay, Yann Grønningsæter, Eirik Pettex, Emeline Porter, Warren P. Grémillet, David 2013 http://dx.doi.org/10.1111/j.1600-048x.2012.00128.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-048X.2012.00128.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-048X.2012.00128.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Avian Biology volume 44, issue 3, page 255-262 ISSN 0908-8857 1600-048X journal-article 2013 crwiley https://doi.org/10.1111/j.1600-048x.2012.00128.x 2024-05-31T08:12:40Z At the onset of winter, warm‐blooded animals inhabiting seasonal environments may remain resident and face poorer climatic conditions, or migrate towards more favourable habitats. While the origins and evolution of migratory choices have been extensively studied, their consequences on avian energy balance and winter survival are poorly understood, especially in species difficult to observe such as seabirds. Using miniaturized geolocators, time‐depth recorders and a mechanistic model, we investigated the migratory strategies, the activity levels and the energy expenditure of the closely‐related, sympatrically breeding Brünnich's guillemots Uria lomvia and common guillemots Uria aalge from Bjørnøya, Svalbard. The two guillemot species from this region present contrasting migratory strategies and wintering quarters: Brünnich's guillemots migrate across the North Atlantic to overwinter off southeast Greenland and Faroe Islands, while common guillemots remain resident in the Barents, the Norwegian and the White Seas. Results show that both species display a marked behavioural plasticity to respond to environmental constraint, notably modulating their foraging effort and diving behaviour. Nevertheless, we provide evidence that the migratory strategy adopted by guillemots can have important consequences for their energy balance. Overall energy expenditure estimated for the non‐breeding season is relatively similar between both species, suggesting that both southward migration and high‐arctic winter residency are energetically equivalent and suitable strategies. However, we also demonstrate that the migratory strategy adopted by Brünnich's guillemots allows them to have reduced daily energy expenditures during the challenging winter period. We therefore speculate that ‘resident’ common guillemots are more vulnerable than ‘migrating’ Brünnich's guillemots to harsh winter environmental conditions. Article in Journal/Newspaper Arctic Bjørnøya Bjørnøya Faroe Islands Greenland North Atlantic Svalbard Uria aalge Uria lomvia uria Wiley Online Library Arctic Bjørnøya ENVELOPE(-67.250,-67.250,-68.151,-68.151) Faroe Islands Greenland Svalbard Journal of Avian Biology 44 3 255 262 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
At the onset of winter, warm‐blooded animals inhabiting seasonal environments may remain resident and face poorer climatic conditions, or migrate towards more favourable habitats. While the origins and evolution of migratory choices have been extensively studied, their consequences on avian energy balance and winter survival are poorly understood, especially in species difficult to observe such as seabirds. Using miniaturized geolocators, time‐depth recorders and a mechanistic model, we investigated the migratory strategies, the activity levels and the energy expenditure of the closely‐related, sympatrically breeding Brünnich's guillemots Uria lomvia and common guillemots Uria aalge from Bjørnøya, Svalbard. The two guillemot species from this region present contrasting migratory strategies and wintering quarters: Brünnich's guillemots migrate across the North Atlantic to overwinter off southeast Greenland and Faroe Islands, while common guillemots remain resident in the Barents, the Norwegian and the White Seas. Results show that both species display a marked behavioural plasticity to respond to environmental constraint, notably modulating their foraging effort and diving behaviour. Nevertheless, we provide evidence that the migratory strategy adopted by guillemots can have important consequences for their energy balance. Overall energy expenditure estimated for the non‐breeding season is relatively similar between both species, suggesting that both southward migration and high‐arctic winter residency are energetically equivalent and suitable strategies. However, we also demonstrate that the migratory strategy adopted by Brünnich's guillemots allows them to have reduced daily energy expenditures during the challenging winter period. We therefore speculate that ‘resident’ common guillemots are more vulnerable than ‘migrating’ Brünnich's guillemots to harsh winter environmental conditions. |
format |
Article in Journal/Newspaper |
author |
Fort, Jérôme Steen, Harald Strøm, Hallvard Tremblay, Yann Grønningsæter, Eirik Pettex, Emeline Porter, Warren P. Grémillet, David |
spellingShingle |
Fort, Jérôme Steen, Harald Strøm, Hallvard Tremblay, Yann Grønningsæter, Eirik Pettex, Emeline Porter, Warren P. Grémillet, David Energetic consequences of contrasting winter migratory strategies in a sympatric Arctic seabird duet |
author_facet |
Fort, Jérôme Steen, Harald Strøm, Hallvard Tremblay, Yann Grønningsæter, Eirik Pettex, Emeline Porter, Warren P. Grémillet, David |
author_sort |
Fort, Jérôme |
title |
Energetic consequences of contrasting winter migratory strategies in a sympatric Arctic seabird duet |
title_short |
Energetic consequences of contrasting winter migratory strategies in a sympatric Arctic seabird duet |
title_full |
Energetic consequences of contrasting winter migratory strategies in a sympatric Arctic seabird duet |
title_fullStr |
Energetic consequences of contrasting winter migratory strategies in a sympatric Arctic seabird duet |
title_full_unstemmed |
Energetic consequences of contrasting winter migratory strategies in a sympatric Arctic seabird duet |
title_sort |
energetic consequences of contrasting winter migratory strategies in a sympatric arctic seabird duet |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1111/j.1600-048x.2012.00128.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-048X.2012.00128.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-048X.2012.00128.x |
long_lat |
ENVELOPE(-67.250,-67.250,-68.151,-68.151) |
geographic |
Arctic Bjørnøya Faroe Islands Greenland Svalbard |
geographic_facet |
Arctic Bjørnøya Faroe Islands Greenland Svalbard |
genre |
Arctic Bjørnøya Bjørnøya Faroe Islands Greenland North Atlantic Svalbard Uria aalge Uria lomvia uria |
genre_facet |
Arctic Bjørnøya Bjørnøya Faroe Islands Greenland North Atlantic Svalbard Uria aalge Uria lomvia uria |
op_source |
Journal of Avian Biology volume 44, issue 3, page 255-262 ISSN 0908-8857 1600-048X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1600-048x.2012.00128.x |
container_title |
Journal of Avian Biology |
container_volume |
44 |
container_issue |
3 |
container_start_page |
255 |
op_container_end_page |
262 |
_version_ |
1802641097339437056 |