Moulting patterns drive within-individual variations of stable isotopes and mercury in seabird body feathers: implications for monitoring of the marine environment
International audience One major limitation in the use of body feathers of seabirds as a monitoring tool of the trophic structure and contamination levels of marine ecosystems is the degree of heterogeneity in feather chemical composition within individuals. Here, we tested the hypothesis that moult...
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ftinsu:oai:HAL:hal-00978917v1 2023-05-15T14:05:20+02:00 Moulting patterns drive within-individual variations of stable isotopes and mercury in seabird body feathers: implications for monitoring of the marine environment Carravieri, Alice Bustamante, Paco Churlaud, Carine Fromant, Aymeric Cherel, Yves LIttoral ENvironnement et Sociétés - UMR 7266 (LIENSs) Institut national des sciences de l'Univers (INSU - CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Institut National de la Recherche Agronomique (INRA)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) 2014-04-02 https://hal.science/hal-00978917 https://hal.science/hal-00978917/document https://hal.science/hal-00978917/file/Carravieri_et_al_2014_MAR_BIOL.pdf https://doi.org/10.1007/s00227-014-2394-x en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-014-2394-x hal-00978917 https://hal.science/hal-00978917 https://hal.science/hal-00978917/document https://hal.science/hal-00978917/file/Carravieri_et_al_2014_MAR_BIOL.pdf doi:10.1007/s00227-014-2394-x info:eu-repo/semantics/OpenAccess ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal.science/hal-00978917 Marine Biology, 2014, 161 (4), pp.963-968. ⟨10.1007/s00227-014-2394-x⟩ birds biomonitoring Southern Ocean trophic ecology moult [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2014 ftinsu https://doi.org/10.1007/s00227-014-2394-x 2023-02-15T17:20:21Z International audience One major limitation in the use of body feathers of seabirds as a monitoring tool of the trophic structure and contamination levels of marine ecosystems is the degree of heterogeneity in feather chemical composition within individuals. Here, we tested the hypothesis that moulting patterns drive body feather heterogeneity, with synchronous moult minimizing within-individual variations, in contrast to asynchronous feather growth. Chicks of white-chinned petrels Procellaria aequinoctialis (representative of bird chicks) and adults of king penguins Aptenodytes patagonicus (representative of adult penguins) that moult their body feathers synchronously showed very low within-individual variations in their feather δ13C and δ15N values and Hg concentrations. By contrast, body feathers of adults of Antarctic prions Pachyptila desolata (representative of adult seabirds with asynchronous feather growth during a protracted moult) presented much higher within-individual variances for the three parameters. These findings have three important implications for birds presenting a synchronous body moult. (i) They suggest that all body feathers from the same individual have identical δ13C and δ15N values and Hg content. (ii) They predict negligible within-individual variations in the body feather values of other useful stable isotopes, such as δ2H and δ34S, as well as in the concentrations of other compounds that are deposited in the keratin structure. (iii) Analysis of one or any number of pooled body feathers is equally representative of the individual. In conclusion, we recommend that long-term routine monitoring investigations focus on birds presenting synchronous rather than asynchronous moult of body feathers both in marine and terrestrial environments. This means targeting chicks rather than adults and, for seabirds, penguins rather than adults of flying species. Article in Journal/Newspaper Antarc* Antarctic King Penguins Pachyptila desolata Southern Ocean Institut national des sciences de l'Univers: HAL-INSU Antarctic Southern Ocean Marine Biology 161 4 963 968 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
birds biomonitoring Southern Ocean trophic ecology moult [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE]Environmental Sciences |
spellingShingle |
birds biomonitoring Southern Ocean trophic ecology moult [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE]Environmental Sciences Carravieri, Alice Bustamante, Paco Churlaud, Carine Fromant, Aymeric Cherel, Yves Moulting patterns drive within-individual variations of stable isotopes and mercury in seabird body feathers: implications for monitoring of the marine environment |
topic_facet |
birds biomonitoring Southern Ocean trophic ecology moult [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE]Environmental Sciences |
description |
International audience One major limitation in the use of body feathers of seabirds as a monitoring tool of the trophic structure and contamination levels of marine ecosystems is the degree of heterogeneity in feather chemical composition within individuals. Here, we tested the hypothesis that moulting patterns drive body feather heterogeneity, with synchronous moult minimizing within-individual variations, in contrast to asynchronous feather growth. Chicks of white-chinned petrels Procellaria aequinoctialis (representative of bird chicks) and adults of king penguins Aptenodytes patagonicus (representative of adult penguins) that moult their body feathers synchronously showed very low within-individual variations in their feather δ13C and δ15N values and Hg concentrations. By contrast, body feathers of adults of Antarctic prions Pachyptila desolata (representative of adult seabirds with asynchronous feather growth during a protracted moult) presented much higher within-individual variances for the three parameters. These findings have three important implications for birds presenting a synchronous body moult. (i) They suggest that all body feathers from the same individual have identical δ13C and δ15N values and Hg content. (ii) They predict negligible within-individual variations in the body feather values of other useful stable isotopes, such as δ2H and δ34S, as well as in the concentrations of other compounds that are deposited in the keratin structure. (iii) Analysis of one or any number of pooled body feathers is equally representative of the individual. In conclusion, we recommend that long-term routine monitoring investigations focus on birds presenting synchronous rather than asynchronous moult of body feathers both in marine and terrestrial environments. This means targeting chicks rather than adults and, for seabirds, penguins rather than adults of flying species. |
author2 |
LIttoral ENvironnement et Sociétés - UMR 7266 (LIENSs) Institut national des sciences de l'Univers (INSU - CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Institut National de la Recherche Agronomique (INRA)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Carravieri, Alice Bustamante, Paco Churlaud, Carine Fromant, Aymeric Cherel, Yves |
author_facet |
Carravieri, Alice Bustamante, Paco Churlaud, Carine Fromant, Aymeric Cherel, Yves |
author_sort |
Carravieri, Alice |
title |
Moulting patterns drive within-individual variations of stable isotopes and mercury in seabird body feathers: implications for monitoring of the marine environment |
title_short |
Moulting patterns drive within-individual variations of stable isotopes and mercury in seabird body feathers: implications for monitoring of the marine environment |
title_full |
Moulting patterns drive within-individual variations of stable isotopes and mercury in seabird body feathers: implications for monitoring of the marine environment |
title_fullStr |
Moulting patterns drive within-individual variations of stable isotopes and mercury in seabird body feathers: implications for monitoring of the marine environment |
title_full_unstemmed |
Moulting patterns drive within-individual variations of stable isotopes and mercury in seabird body feathers: implications for monitoring of the marine environment |
title_sort |
moulting patterns drive within-individual variations of stable isotopes and mercury in seabird body feathers: implications for monitoring of the marine environment |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal.science/hal-00978917 https://hal.science/hal-00978917/document https://hal.science/hal-00978917/file/Carravieri_et_al_2014_MAR_BIOL.pdf https://doi.org/10.1007/s00227-014-2394-x |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic King Penguins Pachyptila desolata Southern Ocean |
genre_facet |
Antarc* Antarctic King Penguins Pachyptila desolata Southern Ocean |
op_source |
ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal.science/hal-00978917 Marine Biology, 2014, 161 (4), pp.963-968. ⟨10.1007/s00227-014-2394-x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-014-2394-x hal-00978917 https://hal.science/hal-00978917 https://hal.science/hal-00978917/document https://hal.science/hal-00978917/file/Carravieri_et_al_2014_MAR_BIOL.pdf doi:10.1007/s00227-014-2394-x |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1007/s00227-014-2394-x |
container_title |
Marine Biology |
container_volume |
161 |
container_issue |
4 |
container_start_page |
963 |
op_container_end_page |
968 |
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1766277144644681728 |