Seabird satellite tracking validates the use of latitudinal isoscapes to depict predators' foraging areas in the Southern Ocean.
International audience Stable isotopes are increasingly being used to trace wildlife movements. A fundamental prerequisite of animal isotopic tracking is a good knowledge of spatial isotopic variations in the environment. Few accessible reference maps of the isotopic landscape ("isoscapes"...
Published in: | Rapid Communications in Mass Spectrometry |
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Online Access: | https://hal.archives-ouvertes.fr/hal-00547682 https://doi.org/10.1002/rcm.4792 |
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ftccsdartic:oai:HAL:hal-00547682v1 2023-05-15T18:24:38+02:00 Seabird satellite tracking validates the use of latitudinal isoscapes to depict predators' foraging areas in the Southern Ocean. Jaeger, Audrey Lecomte, Vincent J Weimerskirch, Henri Richard, Pierre Cherel, Yves Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS) 2010-12-15 https://hal.archives-ouvertes.fr/hal-00547682 https://doi.org/10.1002/rcm.4792 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1002/rcm.4792 info:eu-repo/semantics/altIdentifier/pmid/21072802 hal-00547682 https://hal.archives-ouvertes.fr/hal-00547682 doi:10.1002/rcm.4792 PUBMED: 21072802 ISSN: 0951-4198 EISSN: 1097-0231 Rapid Communications in Mass Spectrometry https://hal.archives-ouvertes.fr/hal-00547682 Rapid Communications in Mass Spectrometry, Wiley, 2010, 24 (23), pp.3456-60. ⟨10.1002/rcm.4792⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2010 ftccsdartic https://doi.org/10.1002/rcm.4792 2021-10-24T18:16:32Z International audience Stable isotopes are increasingly being used to trace wildlife movements. A fundamental prerequisite of animal isotopic tracking is a good knowledge of spatial isotopic variations in the environment. Few accessible reference maps of the isotopic landscape ("isoscapes") are available for marine predators. Here, we validate for the first time an isotopic gradient for higher trophic levels by using a unique combination of a large number of satellite-tracks and subsequent blood plasma isotopic signatures from a wide-ranging oceanic predator. The plasma δ(13)C and δ(15)N values of wandering albatrosses (n = 45) were highly and positively correlated to the Southern Ocean latitudes at which the satellite-tracked individuals foraged. The well-defined latitudinal baseline carbon isoscapes in the Southern Ocean is thus reflected in the tissue of consumers, but with a positive shift due to the cumulative effect of a slight (13)C-enrichment at each trophic level. The data allowed us to estimate the carbon isotopic position of the main oceanic fronts in the area, and thus to delineate robust isoscapes of the main foraging zones for top predators. The plasma δ(13)C and δ(15)N values were positively and linearly correlated, thus suggesting that latitudinal isoscapes also occur for δ(15)N at the base of the food web in oceanic waters of the Southern Ocean. The combination of device deployments with sampling of relevant tissues for isotopic analysis appears to be a powerful tool for investigating consumers' isoscapes at various spatio-temporal scales. Article in Journal/Newspaper Southern Ocean Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Southern Ocean Rapid Communications in Mass Spectrometry 24 23 3456 3460 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Jaeger, Audrey Lecomte, Vincent J Weimerskirch, Henri Richard, Pierre Cherel, Yves Seabird satellite tracking validates the use of latitudinal isoscapes to depict predators' foraging areas in the Southern Ocean. |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Stable isotopes are increasingly being used to trace wildlife movements. A fundamental prerequisite of animal isotopic tracking is a good knowledge of spatial isotopic variations in the environment. Few accessible reference maps of the isotopic landscape ("isoscapes") are available for marine predators. Here, we validate for the first time an isotopic gradient for higher trophic levels by using a unique combination of a large number of satellite-tracks and subsequent blood plasma isotopic signatures from a wide-ranging oceanic predator. The plasma δ(13)C and δ(15)N values of wandering albatrosses (n = 45) were highly and positively correlated to the Southern Ocean latitudes at which the satellite-tracked individuals foraged. The well-defined latitudinal baseline carbon isoscapes in the Southern Ocean is thus reflected in the tissue of consumers, but with a positive shift due to the cumulative effect of a slight (13)C-enrichment at each trophic level. The data allowed us to estimate the carbon isotopic position of the main oceanic fronts in the area, and thus to delineate robust isoscapes of the main foraging zones for top predators. The plasma δ(13)C and δ(15)N values were positively and linearly correlated, thus suggesting that latitudinal isoscapes also occur for δ(15)N at the base of the food web in oceanic waters of the Southern Ocean. The combination of device deployments with sampling of relevant tissues for isotopic analysis appears to be a powerful tool for investigating consumers' isoscapes at various spatio-temporal scales. |
author2 |
Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Jaeger, Audrey Lecomte, Vincent J Weimerskirch, Henri Richard, Pierre Cherel, Yves |
author_facet |
Jaeger, Audrey Lecomte, Vincent J Weimerskirch, Henri Richard, Pierre Cherel, Yves |
author_sort |
Jaeger, Audrey |
title |
Seabird satellite tracking validates the use of latitudinal isoscapes to depict predators' foraging areas in the Southern Ocean. |
title_short |
Seabird satellite tracking validates the use of latitudinal isoscapes to depict predators' foraging areas in the Southern Ocean. |
title_full |
Seabird satellite tracking validates the use of latitudinal isoscapes to depict predators' foraging areas in the Southern Ocean. |
title_fullStr |
Seabird satellite tracking validates the use of latitudinal isoscapes to depict predators' foraging areas in the Southern Ocean. |
title_full_unstemmed |
Seabird satellite tracking validates the use of latitudinal isoscapes to depict predators' foraging areas in the Southern Ocean. |
title_sort |
seabird satellite tracking validates the use of latitudinal isoscapes to depict predators' foraging areas in the southern ocean. |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.archives-ouvertes.fr/hal-00547682 https://doi.org/10.1002/rcm.4792 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
ISSN: 0951-4198 EISSN: 1097-0231 Rapid Communications in Mass Spectrometry https://hal.archives-ouvertes.fr/hal-00547682 Rapid Communications in Mass Spectrometry, Wiley, 2010, 24 (23), pp.3456-60. ⟨10.1002/rcm.4792⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/rcm.4792 info:eu-repo/semantics/altIdentifier/pmid/21072802 hal-00547682 https://hal.archives-ouvertes.fr/hal-00547682 doi:10.1002/rcm.4792 PUBMED: 21072802 |
op_doi |
https://doi.org/10.1002/rcm.4792 |
container_title |
Rapid Communications in Mass Spectrometry |
container_volume |
24 |
container_issue |
23 |
container_start_page |
3456 |
op_container_end_page |
3460 |
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1766205395700809728 |