Reproductive performance and diving behaviour share a common sea-ice concentration optimum in Adélie penguins ( Pygoscelis adeliae )
The Southern Ocean is currently experiencing major environmental changes, including in sea‐ice cover. Such changes strongly influence ecosystem structure and functioning and affect the survival and reproduction of predators such as seabirds. These effects are likely mediated by reduced availability...
Published in: | Global Change Biology |
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Main Authors: | , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2018
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/reproductive-performance-and-diving-behaviour-share-a-common-seaice-concentration-optimum-in-adelie-penguins-pygoscelis-adeliae(b2973e51-1e1f-461d-9686-f01bd64b94c4).html https://doi.org/10.1111/gcb.14377 https://research-repository.st-andrews.ac.uk/bitstream/10023/18004/1/LeGuen_2018_GCB_Adeliepenguins_AAM.pdf |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/b2973e51-1e1f-461d-9686-f01bd64b94c4 2023-05-15T13:51:52+02:00 Reproductive performance and diving behaviour share a common sea-ice concentration optimum in Adélie penguins ( Pygoscelis adeliae ) Le Guen, Camille Kato, Akiko Raymond, Ben Barbraud, Christophe Beaulieu, Michaël Bost, Charles-André Delord, Karine MacIntosh, Andrew J J Meyer, Xavier Raclot, Thierry Sumner, Michael Takahashi, Akinori Thiebot, Jean-Baptiste Ropert-Coudert, Yan 2018-06-29 application/pdf https://risweb.st-andrews.ac.uk/portal/en/researchoutput/reproductive-performance-and-diving-behaviour-share-a-common-seaice-concentration-optimum-in-adelie-penguins-pygoscelis-adeliae(b2973e51-1e1f-461d-9686-f01bd64b94c4).html https://doi.org/10.1111/gcb.14377 https://research-repository.st-andrews.ac.uk/bitstream/10023/18004/1/LeGuen_2018_GCB_Adeliepenguins_AAM.pdf eng eng info:eu-repo/semantics/openAccess Le Guen , C , Kato , A , Raymond , B , Barbraud , C , Beaulieu , M , Bost , C-A , Delord , K , MacIntosh , A J J , Meyer , X , Raclot , T , Sumner , M , Takahashi , A , Thiebot , J-B & Ropert-Coudert , Y 2018 , ' Reproductive performance and diving behaviour share a common sea-ice concentration optimum in Adélie penguins ( Pygoscelis adeliae ) ' , Global Change Biology , vol. Early View . https://doi.org/10.1111/gcb.14377 Antarctic Sea ice Pygoscelis adeliae Diving activity Foraging strategies Breeding success article 2018 ftunstandrewcris https://doi.org/10.1111/gcb.14377 2021-12-26T14:32:25Z The Southern Ocean is currently experiencing major environmental changes, including in sea‐ice cover. Such changes strongly influence ecosystem structure and functioning and affect the survival and reproduction of predators such as seabirds. These effects are likely mediated by reduced availability of food resources. As such, seabirds are reliable eco‐indicators of environmental conditions in the Antarctic region. Here, based on 9 years of sea‐ice data, we found that the breeding success of Adélie penguins ( Pygoscelis adeliae ) reaches a peak at intermediate sea‐ice cover ( ca . 20%). We further examined the effects of sea‐ice conditions on the foraging activity of penguins, measured at multiple scales from individual dives to foraging trips. Analysis of temporal organisation of dives, including fractal and bout analyses, revealed an increasingly consistent behaviour during years with extensive sea‐ice cover. The relationship between several dive parameters and sea‐ice cover in the foraging area appears to be quadratic. In years of low and high sea‐ice cover, individuals adjusted their diving effort by generally diving deeper, more frequently and by resting at the surface between dives for shorter periods of time than in years with intermediate sea‐ice cover. Our study therefore suggests that sea‐ice cover is likely to affect the reproductive performance of Adélie penguins through its effects on foraging behaviour, as breeding success and most diving parameters share a common optimum. Some years, however, deviated from this general trend, suggesting that other factors (e.g. precipitation during the breeding season) might sometimes become preponderant over the sea‐ice effects on breeding and foraging performance. Our study highlights the value of monitoring fitness parameters and individual behaviour concomitantly over the long‐term to better characterize optimal environmental conditions and potential resilience of wildlife. Such an approach is crucial if we want to anticipate the effects of environmental change ... Article in Journal/Newspaper Antarc* Antarctic Pygoscelis adeliae Sea ice Southern Ocean University of St Andrews: Research Portal Antarctic Southern Ocean The Antarctic Global Change Biology 24 11 5304 5317 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Antarctic Sea ice Pygoscelis adeliae Diving activity Foraging strategies Breeding success |
spellingShingle |
Antarctic Sea ice Pygoscelis adeliae Diving activity Foraging strategies Breeding success Le Guen, Camille Kato, Akiko Raymond, Ben Barbraud, Christophe Beaulieu, Michaël Bost, Charles-André Delord, Karine MacIntosh, Andrew J J Meyer, Xavier Raclot, Thierry Sumner, Michael Takahashi, Akinori Thiebot, Jean-Baptiste Ropert-Coudert, Yan Reproductive performance and diving behaviour share a common sea-ice concentration optimum in Adélie penguins ( Pygoscelis adeliae ) |
topic_facet |
Antarctic Sea ice Pygoscelis adeliae Diving activity Foraging strategies Breeding success |
description |
The Southern Ocean is currently experiencing major environmental changes, including in sea‐ice cover. Such changes strongly influence ecosystem structure and functioning and affect the survival and reproduction of predators such as seabirds. These effects are likely mediated by reduced availability of food resources. As such, seabirds are reliable eco‐indicators of environmental conditions in the Antarctic region. Here, based on 9 years of sea‐ice data, we found that the breeding success of Adélie penguins ( Pygoscelis adeliae ) reaches a peak at intermediate sea‐ice cover ( ca . 20%). We further examined the effects of sea‐ice conditions on the foraging activity of penguins, measured at multiple scales from individual dives to foraging trips. Analysis of temporal organisation of dives, including fractal and bout analyses, revealed an increasingly consistent behaviour during years with extensive sea‐ice cover. The relationship between several dive parameters and sea‐ice cover in the foraging area appears to be quadratic. In years of low and high sea‐ice cover, individuals adjusted their diving effort by generally diving deeper, more frequently and by resting at the surface between dives for shorter periods of time than in years with intermediate sea‐ice cover. Our study therefore suggests that sea‐ice cover is likely to affect the reproductive performance of Adélie penguins through its effects on foraging behaviour, as breeding success and most diving parameters share a common optimum. Some years, however, deviated from this general trend, suggesting that other factors (e.g. precipitation during the breeding season) might sometimes become preponderant over the sea‐ice effects on breeding and foraging performance. Our study highlights the value of monitoring fitness parameters and individual behaviour concomitantly over the long‐term to better characterize optimal environmental conditions and potential resilience of wildlife. Such an approach is crucial if we want to anticipate the effects of environmental change ... |
format |
Article in Journal/Newspaper |
author |
Le Guen, Camille Kato, Akiko Raymond, Ben Barbraud, Christophe Beaulieu, Michaël Bost, Charles-André Delord, Karine MacIntosh, Andrew J J Meyer, Xavier Raclot, Thierry Sumner, Michael Takahashi, Akinori Thiebot, Jean-Baptiste Ropert-Coudert, Yan |
author_facet |
Le Guen, Camille Kato, Akiko Raymond, Ben Barbraud, Christophe Beaulieu, Michaël Bost, Charles-André Delord, Karine MacIntosh, Andrew J J Meyer, Xavier Raclot, Thierry Sumner, Michael Takahashi, Akinori Thiebot, Jean-Baptiste Ropert-Coudert, Yan |
author_sort |
Le Guen, Camille |
title |
Reproductive performance and diving behaviour share a common sea-ice concentration optimum in Adélie penguins ( Pygoscelis adeliae ) |
title_short |
Reproductive performance and diving behaviour share a common sea-ice concentration optimum in Adélie penguins ( Pygoscelis adeliae ) |
title_full |
Reproductive performance and diving behaviour share a common sea-ice concentration optimum in Adélie penguins ( Pygoscelis adeliae ) |
title_fullStr |
Reproductive performance and diving behaviour share a common sea-ice concentration optimum in Adélie penguins ( Pygoscelis adeliae ) |
title_full_unstemmed |
Reproductive performance and diving behaviour share a common sea-ice concentration optimum in Adélie penguins ( Pygoscelis adeliae ) |
title_sort |
reproductive performance and diving behaviour share a common sea-ice concentration optimum in adélie penguins ( pygoscelis adeliae ) |
publishDate |
2018 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/reproductive-performance-and-diving-behaviour-share-a-common-seaice-concentration-optimum-in-adelie-penguins-pygoscelis-adeliae(b2973e51-1e1f-461d-9686-f01bd64b94c4).html https://doi.org/10.1111/gcb.14377 https://research-repository.st-andrews.ac.uk/bitstream/10023/18004/1/LeGuen_2018_GCB_Adeliepenguins_AAM.pdf |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Pygoscelis adeliae Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Pygoscelis adeliae Sea ice Southern Ocean |
op_source |
Le Guen , C , Kato , A , Raymond , B , Barbraud , C , Beaulieu , M , Bost , C-A , Delord , K , MacIntosh , A J J , Meyer , X , Raclot , T , Sumner , M , Takahashi , A , Thiebot , J-B & Ropert-Coudert , Y 2018 , ' Reproductive performance and diving behaviour share a common sea-ice concentration optimum in Adélie penguins ( Pygoscelis adeliae ) ' , Global Change Biology , vol. Early View . https://doi.org/10.1111/gcb.14377 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/gcb.14377 |
container_title |
Global Change Biology |
container_volume |
24 |
container_issue |
11 |
container_start_page |
5304 |
op_container_end_page |
5317 |
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1766255912546205696 |