Factors affecting adult body condition in the endangered northern rockhopper penguin
International audience Understanding the factors that drive the dynamics of populations of long-lived species presents a unique challenge for conservation management. Here, we investigated long-term change in the body condition of adult northern rockhopper penguins Eudyptes moseleyi at Amsterdam Isl...
Published in: | Marine Biology |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2021
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Subjects: | |
Online Access: | https://hal.science/hal-03381813 https://hal.science/hal-03381813/document https://hal.science/hal-03381813/file/Delord%20factores%20affecting%20adult%20body%20composition%20Marine%20Biol%202021.pdf https://doi.org/10.1007/s00227-021-03832-z |
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ftceafr:oai:HAL:hal-03381813v1 |
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HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
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language |
English |
topic |
[SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
[SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology [SDE.BE]Environmental Sciences/Biodiversity and Ecology Delord, Karine Cotté, Cédric Terray, Pascal Bost, Charles-André Weimerskirch, Henri Barbraud, Christophe Factors affecting adult body condition in the endangered northern rockhopper penguin |
topic_facet |
[SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Understanding the factors that drive the dynamics of populations of long-lived species presents a unique challenge for conservation management. Here, we investigated long-term change in the body condition of adult northern rockhopper penguins Eudyptes moseleyi at Amsterdam Island, southern Indian Ocean, which hosts 5-10% of the global population of this endangered species. Analysis of a long-term dataset (1994-2016), concurrent to the population's rapid decline, revealed no trend in adult northern rockhopper penguin body condition over time at the stages considered in this study, i.e. breeding and moulting. However, body condition varied between years and sexes and part of this variation was explained by environmental factors. Males were on average in better condition than females whatever the stage and individuals on average were in better condition during the moulting compared to the breeding period. The environmental conditions [sea surface temperature anomaly (SSTa), Subtropical Indian Ocean Dipole (SIOD) and Southern Annular Mode (SAM)] appeared to impact non-linearly the body condition. Overall, females were in better condition for negative values of SAM, SIOD and SSTa. The body condition of males exhibited similar but less complex and more significant patterns, with decreasing body condition for increasing SAM, SIOD and SSTa. The absence of long-term trends in male and female body condition suggests that the very low reproductive output and declining population since 1997 is probably not the result of environmental conditions during pre-breeding and pre-moult and necessitates further research into possible drivers during the breeding season. |
author2 |
Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Processus et interactions de fine échelle océanique (PROTEO) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Océan et variabilité du climat (VARCLIM) |
format |
Article in Journal/Newspaper |
author |
Delord, Karine Cotté, Cédric Terray, Pascal Bost, Charles-André Weimerskirch, Henri Barbraud, Christophe |
author_facet |
Delord, Karine Cotté, Cédric Terray, Pascal Bost, Charles-André Weimerskirch, Henri Barbraud, Christophe |
author_sort |
Delord, Karine |
title |
Factors affecting adult body condition in the endangered northern rockhopper penguin |
title_short |
Factors affecting adult body condition in the endangered northern rockhopper penguin |
title_full |
Factors affecting adult body condition in the endangered northern rockhopper penguin |
title_fullStr |
Factors affecting adult body condition in the endangered northern rockhopper penguin |
title_full_unstemmed |
Factors affecting adult body condition in the endangered northern rockhopper penguin |
title_sort |
factors affecting adult body condition in the endangered northern rockhopper penguin |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03381813 https://hal.science/hal-03381813/document https://hal.science/hal-03381813/file/Delord%20factores%20affecting%20adult%20body%20composition%20Marine%20Biol%202021.pdf https://doi.org/10.1007/s00227-021-03832-z |
genre |
Amsterdam Island Rockhopper penguin |
genre_facet |
Amsterdam Island Rockhopper penguin |
op_source |
ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal.science/hal-03381813 Marine Biology, 2021, 168 (3), pp.27. ⟨10.1007/s00227-021-03832-z⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-021-03832-z hal-03381813 https://hal.science/hal-03381813 https://hal.science/hal-03381813/document https://hal.science/hal-03381813/file/Delord%20factores%20affecting%20adult%20body%20composition%20Marine%20Biol%202021.pdf doi:10.1007/s00227-021-03832-z IRD: fdi:010080963 WOS: 000616061400001 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1007/s00227-021-03832-z |
container_title |
Marine Biology |
container_volume |
168 |
container_issue |
3 |
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1799471982114242560 |
spelling |
ftceafr:oai:HAL:hal-03381813v1 2024-05-19T07:28:15+00:00 Factors affecting adult body condition in the endangered northern rockhopper penguin Delord, Karine Cotté, Cédric Terray, Pascal Bost, Charles-André Weimerskirch, Henri Barbraud, Christophe Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Processus et interactions de fine échelle océanique (PROTEO) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Océan et variabilité du climat (VARCLIM) 2021 https://hal.science/hal-03381813 https://hal.science/hal-03381813/document https://hal.science/hal-03381813/file/Delord%20factores%20affecting%20adult%20body%20composition%20Marine%20Biol%202021.pdf https://doi.org/10.1007/s00227-021-03832-z en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-021-03832-z hal-03381813 https://hal.science/hal-03381813 https://hal.science/hal-03381813/document https://hal.science/hal-03381813/file/Delord%20factores%20affecting%20adult%20body%20composition%20Marine%20Biol%202021.pdf doi:10.1007/s00227-021-03832-z IRD: fdi:010080963 WOS: 000616061400001 info:eu-repo/semantics/OpenAccess ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal.science/hal-03381813 Marine Biology, 2021, 168 (3), pp.27. ⟨10.1007/s00227-021-03832-z⟩ [SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2021 ftceafr https://doi.org/10.1007/s00227-021-03832-z 2024-04-25T01:42:19Z International audience Understanding the factors that drive the dynamics of populations of long-lived species presents a unique challenge for conservation management. Here, we investigated long-term change in the body condition of adult northern rockhopper penguins Eudyptes moseleyi at Amsterdam Island, southern Indian Ocean, which hosts 5-10% of the global population of this endangered species. Analysis of a long-term dataset (1994-2016), concurrent to the population's rapid decline, revealed no trend in adult northern rockhopper penguin body condition over time at the stages considered in this study, i.e. breeding and moulting. However, body condition varied between years and sexes and part of this variation was explained by environmental factors. Males were on average in better condition than females whatever the stage and individuals on average were in better condition during the moulting compared to the breeding period. The environmental conditions [sea surface temperature anomaly (SSTa), Subtropical Indian Ocean Dipole (SIOD) and Southern Annular Mode (SAM)] appeared to impact non-linearly the body condition. Overall, females were in better condition for negative values of SAM, SIOD and SSTa. The body condition of males exhibited similar but less complex and more significant patterns, with decreasing body condition for increasing SAM, SIOD and SSTa. The absence of long-term trends in male and female body condition suggests that the very low reproductive output and declining population since 1997 is probably not the result of environmental conditions during pre-breeding and pre-moult and necessitates further research into possible drivers during the breeding season. Article in Journal/Newspaper Amsterdam Island Rockhopper penguin HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Marine Biology 168 3 |