Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses
International audience Very little is known about trophic ontogenetic changes over the prolonged immaturity period of long-lived, wide-ranging seabirds. By using blood and feather trophic tracers (δ13C and δ15N, and mercury, Hg), we studied age-related changes in feeding ecology during the immature...
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Online Access: | https://hal.science/hal-01616150 https://hal.science/hal-01616150/document https://hal.science/hal-01616150/file/Carravieri%20et%20al%202017%20RSOS.pdf https://doi.org/10.1098/rsos.171039 |
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ftinsu:oai:HAL:hal-01616150v1 2023-05-15T16:00:55+02:00 Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses Carravieri, Alice Weimerskirch, Henri Bustamante, Paco Cherel, Yves 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) 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) ANR-10-CESA-0016,POLARTOP,Contaminants chez les prédateurs supérieurs polaires: niveaux et effets des polluants organiques et métaux lourds sur la physiologie du stress et le devenir des oiseaux marins des Terres Australes Françaises (TAAF)(2010) 2017-10-11 https://hal.science/hal-01616150 https://hal.science/hal-01616150/document https://hal.science/hal-01616150/file/Carravieri%20et%20al%202017%20RSOS.pdf https://doi.org/10.1098/rsos.171039 en eng HAL CCSD The Royal Society info:eu-repo/semantics/altIdentifier/doi/10.1098/rsos.171039 hal-01616150 https://hal.science/hal-01616150 https://hal.science/hal-01616150/document https://hal.science/hal-01616150/file/Carravieri%20et%20al%202017%20RSOS.pdf doi:10.1098/rsos.171039 info:eu-repo/semantics/OpenAccess ISSN: 2054-5703 Royal Society Open Science https://hal.science/hal-01616150 Royal Society Open Science, 2017, 4 (10), pp.171039. ⟨10.1098/rsos.171039⟩ moult mercury feeding ecology subtropics subantarctic stable isotopes [SDE]Environmental Sciences [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology info:eu-repo/semantics/article Journal articles 2017 ftinsu https://doi.org/10.1098/rsos.171039 2023-02-15T19:29:42Z International audience Very little is known about trophic ontogenetic changes over the prolonged immaturity period of long-lived, wide-ranging seabirds. By using blood and feather trophic tracers (δ13C and δ15N, and mercury, Hg), we studied age-related changes in feeding ecology during the immature phase of wandering albatrosses Diomedea exulans when they gradually change from a pure oceanic life to visits to their future breeding grounds. Immatures fed in subtropical waters at high trophic positions during moult. Between- and within-individual variations in isotopic niche were very high, irrespective of age, highlighting wide-ranging exploratory behaviours. In summer, while acting as central-place foragers from their future breeding colony, individuals progressively relied on lower trophic level prey and/or southern latitudes as they aged, until occupying a similar isotopic niche to that of adults. Immatures had exceptionally high Hg burdens, with males having lower Hg concentrations than females, suggesting that they foraged more in subantarctic waters. Our findings suggest a progressive ontogenetic niche shift during central-place foraging of this long-lived species. Article in Journal/Newspaper Diomedea exulans Institut national des sciences de l'Univers: HAL-INSU Royal Society Open Science 4 10 171039 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
moult mercury feeding ecology subtropics subantarctic stable isotopes [SDE]Environmental Sciences [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
spellingShingle |
moult mercury feeding ecology subtropics subantarctic stable isotopes [SDE]Environmental Sciences [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology Carravieri, Alice Weimerskirch, Henri Bustamante, Paco Cherel, Yves Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses |
topic_facet |
moult mercury feeding ecology subtropics subantarctic stable isotopes [SDE]Environmental Sciences [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
description |
International audience Very little is known about trophic ontogenetic changes over the prolonged immaturity period of long-lived, wide-ranging seabirds. By using blood and feather trophic tracers (δ13C and δ15N, and mercury, Hg), we studied age-related changes in feeding ecology during the immature phase of wandering albatrosses Diomedea exulans when they gradually change from a pure oceanic life to visits to their future breeding grounds. Immatures fed in subtropical waters at high trophic positions during moult. Between- and within-individual variations in isotopic niche were very high, irrespective of age, highlighting wide-ranging exploratory behaviours. In summer, while acting as central-place foragers from their future breeding colony, individuals progressively relied on lower trophic level prey and/or southern latitudes as they aged, until occupying a similar isotopic niche to that of adults. Immatures had exceptionally high Hg burdens, with males having lower Hg concentrations than females, suggesting that they foraged more in subantarctic waters. Our findings suggest a progressive ontogenetic niche shift during central-place foraging of this long-lived species. |
author2 |
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) 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) ANR-10-CESA-0016,POLARTOP,Contaminants chez les prédateurs supérieurs polaires: niveaux et effets des polluants organiques et métaux lourds sur la physiologie du stress et le devenir des oiseaux marins des Terres Australes Françaises (TAAF)(2010) |
format |
Article in Journal/Newspaper |
author |
Carravieri, Alice Weimerskirch, Henri Bustamante, Paco Cherel, Yves |
author_facet |
Carravieri, Alice Weimerskirch, Henri Bustamante, Paco Cherel, Yves |
author_sort |
Carravieri, Alice |
title |
Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses |
title_short |
Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses |
title_full |
Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses |
title_fullStr |
Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses |
title_full_unstemmed |
Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses |
title_sort |
progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.science/hal-01616150 https://hal.science/hal-01616150/document https://hal.science/hal-01616150/file/Carravieri%20et%20al%202017%20RSOS.pdf https://doi.org/10.1098/rsos.171039 |
genre |
Diomedea exulans |
genre_facet |
Diomedea exulans |
op_source |
ISSN: 2054-5703 Royal Society Open Science https://hal.science/hal-01616150 Royal Society Open Science, 2017, 4 (10), pp.171039. ⟨10.1098/rsos.171039⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1098/rsos.171039 hal-01616150 https://hal.science/hal-01616150 https://hal.science/hal-01616150/document https://hal.science/hal-01616150/file/Carravieri%20et%20al%202017%20RSOS.pdf doi:10.1098/rsos.171039 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1098/rsos.171039 |
container_title |
Royal Society Open Science |
container_volume |
4 |
container_issue |
10 |
container_start_page |
171039 |
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1766396936339849216 |