Seabird year-round and historical feeding ecology: blood and feather δ13C and δ15N values document foraging plasticity of small sympatric petrels
International audience The foraging ecology of small seabirds remains poorly understood because of the difficulty of studying them at sea. Here, the extent to which 3 sympatric seabirds (blue petrel, thinbilled prion and common diving petrel) alter their foraging ecology across the annual cycle was...
Published in: | Marine Ecology Progress Series |
---|---|
Main Authors: | , , , |
Other Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2014
|
Subjects: | |
Online Access: | https://hal.science/hal-00998027 https://hal.science/hal-00998027/document https://hal.science/hal-00998027/file/m505p267.pdf https://doi.org/10.3354/meps10795 |
id |
ftunivrochelle:oai:HAL:hal-00998027v1 |
---|---|
record_format |
openpolar |
spelling |
ftunivrochelle:oai:HAL:hal-00998027v1 2024-02-11T09:57:32+01:00 Seabird year-round and historical feeding ecology: blood and feather δ13C and δ15N values document foraging plasticity of small sympatric petrels Cherel, Yves Connan, Maëlle Jaeger, Audrey Richard, Pierre 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 (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) 2014-05-28 https://hal.science/hal-00998027 https://hal.science/hal-00998027/document https://hal.science/hal-00998027/file/m505p267.pdf https://doi.org/10.3354/meps10795 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps10795 hal-00998027 https://hal.science/hal-00998027 https://hal.science/hal-00998027/document https://hal.science/hal-00998027/file/m505p267.pdf doi:10.3354/meps10795 info:eu-repo/semantics/OpenAccess ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-00998027 Marine Ecology Progress Series, 2014, 505, pp.267-280. ⟨10.3354/meps10795⟩ Diet Museum specimens Procellariiformes Resource partitioning Southern Ocean Stable isotopes [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2014 ftunivrochelle https://doi.org/10.3354/meps10795 2024-01-23T23:34:23Z International audience The foraging ecology of small seabirds remains poorly understood because of the difficulty of studying them at sea. Here, the extent to which 3 sympatric seabirds (blue petrel, thinbilled prion and common diving petrel) alter their foraging ecology across the annual cycle was investigated using stable isotopes. δ13C and δ15N values were used as proxies of the birds' foraging habitat and diet, respectively, and were measured in 3 tissues (plasma, blood cells and feathers) that record trophic information at different time scales. Long-term temporal changes were investigated by measuring feather isotopic values from museum specimens. The study was conducted at the subantarctic Kerguelen Islands and emphasizes 4 main features. (1) The 3 species highlight a strong connection between subantarctic and Antarctic pelagic ecosystems, because they all foraged in Antarctic waters at some stages of the annual cycle. (2) Foraging niches are stagedependent, with petrels shifting their feeding grounds during reproduction either from oceanic to productive coastal waters (common diving petrel) or from subantarctic to high-Antarctic waters where they fed primarily on crustaceans (blue petrel and thin-billed prion). (3) The common diving petrel segregated from the surface-feeders blue petrel and thin-billed prion by a coastal habitat and lower trophic level prey, while the blue petrel segregated from the thin-billed prion by foraging further south and including more fish in its diet. (4) Feather δ13C and δ15N values from historical and recent specimens of thin-billed prion depicted a pronounced temporal shift to higher latitudes in its main moulting ground, where it feeds on higher trophic level prey. The study contributes to growing evidence that seabirds exhibit considerable foraging plasticity and sheds new light on their flexibility at different time scales (from intra-seasonal to decadal). Article in Journal/Newspaper Antarc* Antarctic Kerguelen Islands Southern Ocean HAL - Université de La Rochelle Antarctic Southern Ocean Kerguelen Kerguelen Islands Marine Ecology Progress Series 505 267 280 |
institution |
Open Polar |
collection |
HAL - Université de La Rochelle |
op_collection_id |
ftunivrochelle |
language |
English |
topic |
Diet Museum specimens Procellariiformes Resource partitioning Southern Ocean Stable isotopes [SDE]Environmental Sciences |
spellingShingle |
Diet Museum specimens Procellariiformes Resource partitioning Southern Ocean Stable isotopes [SDE]Environmental Sciences Cherel, Yves Connan, Maëlle Jaeger, Audrey Richard, Pierre Seabird year-round and historical feeding ecology: blood and feather δ13C and δ15N values document foraging plasticity of small sympatric petrels |
topic_facet |
Diet Museum specimens Procellariiformes Resource partitioning Southern Ocean Stable isotopes [SDE]Environmental Sciences |
description |
International audience The foraging ecology of small seabirds remains poorly understood because of the difficulty of studying them at sea. Here, the extent to which 3 sympatric seabirds (blue petrel, thinbilled prion and common diving petrel) alter their foraging ecology across the annual cycle was investigated using stable isotopes. δ13C and δ15N values were used as proxies of the birds' foraging habitat and diet, respectively, and were measured in 3 tissues (plasma, blood cells and feathers) that record trophic information at different time scales. Long-term temporal changes were investigated by measuring feather isotopic values from museum specimens. The study was conducted at the subantarctic Kerguelen Islands and emphasizes 4 main features. (1) The 3 species highlight a strong connection between subantarctic and Antarctic pelagic ecosystems, because they all foraged in Antarctic waters at some stages of the annual cycle. (2) Foraging niches are stagedependent, with petrels shifting their feeding grounds during reproduction either from oceanic to productive coastal waters (common diving petrel) or from subantarctic to high-Antarctic waters where they fed primarily on crustaceans (blue petrel and thin-billed prion). (3) The common diving petrel segregated from the surface-feeders blue petrel and thin-billed prion by a coastal habitat and lower trophic level prey, while the blue petrel segregated from the thin-billed prion by foraging further south and including more fish in its diet. (4) Feather δ13C and δ15N values from historical and recent specimens of thin-billed prion depicted a pronounced temporal shift to higher latitudes in its main moulting ground, where it feeds on higher trophic level prey. The study contributes to growing evidence that seabirds exhibit considerable foraging plasticity and sheds new light on their flexibility at different time scales (from intra-seasonal to decadal). |
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 (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Cherel, Yves Connan, Maëlle Jaeger, Audrey Richard, Pierre |
author_facet |
Cherel, Yves Connan, Maëlle Jaeger, Audrey Richard, Pierre |
author_sort |
Cherel, Yves |
title |
Seabird year-round and historical feeding ecology: blood and feather δ13C and δ15N values document foraging plasticity of small sympatric petrels |
title_short |
Seabird year-round and historical feeding ecology: blood and feather δ13C and δ15N values document foraging plasticity of small sympatric petrels |
title_full |
Seabird year-round and historical feeding ecology: blood and feather δ13C and δ15N values document foraging plasticity of small sympatric petrels |
title_fullStr |
Seabird year-round and historical feeding ecology: blood and feather δ13C and δ15N values document foraging plasticity of small sympatric petrels |
title_full_unstemmed |
Seabird year-round and historical feeding ecology: blood and feather δ13C and δ15N values document foraging plasticity of small sympatric petrels |
title_sort |
seabird year-round and historical feeding ecology: blood and feather δ13c and δ15n values document foraging plasticity of small sympatric petrels |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal.science/hal-00998027 https://hal.science/hal-00998027/document https://hal.science/hal-00998027/file/m505p267.pdf https://doi.org/10.3354/meps10795 |
geographic |
Antarctic Southern Ocean Kerguelen Kerguelen Islands |
geographic_facet |
Antarctic Southern Ocean Kerguelen Kerguelen Islands |
genre |
Antarc* Antarctic Kerguelen Islands Southern Ocean |
genre_facet |
Antarc* Antarctic Kerguelen Islands Southern Ocean |
op_source |
ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-00998027 Marine Ecology Progress Series, 2014, 505, pp.267-280. ⟨10.3354/meps10795⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps10795 hal-00998027 https://hal.science/hal-00998027 https://hal.science/hal-00998027/document https://hal.science/hal-00998027/file/m505p267.pdf doi:10.3354/meps10795 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3354/meps10795 |
container_title |
Marine Ecology Progress Series |
container_volume |
505 |
container_start_page |
267 |
op_container_end_page |
280 |
_version_ |
1790593067612372992 |