Seasonal changes in the diet and feeding behaviour of a top predator indicate a flexible response to deteriorating oceanographic conditions
International audience Shifts in the diet of top predators can be linked to changes in environmental conditions. In this study, we tested relationships between environmental variation and seasonal changes in diet of a top predator, the grey-headed albatross Thalassarche chrysostoma, breeding at Bird...
Published in: | Marine Biology |
---|---|
Main Authors: | , , , , , , , |
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2013
|
Subjects: | |
Online Access: | https://hal.science/hal-00831538 https://doi.org/10.1007/s00227-013-2212-x |
id |
ftunivnantes:oai:HAL:hal-00831538v1 |
---|---|
record_format |
openpolar |
spelling |
ftunivnantes:oai:HAL:hal-00831538v1 2023-05-15T14:03:22+02:00 Seasonal changes in the diet and feeding behaviour of a top predator indicate a flexible response to deteriorating oceanographic conditions Xavier, J.C. Louzao, Maite Thorpe, S. E. Ward, P. Hill, C. Roberts, D. Croxall, John P. Phillips, Richard A. British Antarctic Survey (BAS) Natural Environment Research Council (NERC) Institute of Marine Research University of Coimbra Portugal (UC) Centre d'Études Biologiques de Chizé (CEBC) Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS) Helmholtz Zentrum für Umweltforschung = Helmholtz Centre for Environmental Research (UFZ) 2013 https://hal.science/hal-00831538 https://doi.org/10.1007/s00227-013-2212-x en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-013-2212-x hal-00831538 https://hal.science/hal-00831538 doi:10.1007/s00227-013-2212-x ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal.science/hal-00831538 Marine Biology, 2013, 160, pp.1597-1606. ⟨10.1007/s00227-013-2212-x⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2013 ftunivnantes https://doi.org/10.1007/s00227-013-2212-x 2023-02-08T00:10:12Z International audience Shifts in the diet of top predators can be linked to changes in environmental conditions. In this study, we tested relationships between environmental variation and seasonal changes in diet of a top predator, the grey-headed albatross Thalassarche chrysostoma, breeding at Bird Island, South Georgia in an austral summer of 1999/2000. Oceanographic conditions in that year around South Georgia were abnormal (i.e. anomalously high sea surface temperature to a relative 19-year long-term mean). The diet of grey-headed albatrosses showed high seasonal variation, shifting from cephalopods (42.9 % by mass) in late February to Antarctic krill Euphausia superba (58.3 %) in late April, and grey-headed albatrosses breeding performance was low (16.8 %). This study shows these albatrosses did not manage to find sufficient alternative prey and highlight the risk to top predators if there is an increase in the frequency or severity of food shortages in Antarctic waters. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Bird Island Euphausia superba Université de Nantes: HAL-UNIV-NANTES Antarctic Austral Bird Island ENVELOPE(-38.060,-38.060,-54.004,-54.004) Marine Biology 160 7 1597 1606 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Xavier, J.C. Louzao, Maite Thorpe, S. E. Ward, P. Hill, C. Roberts, D. Croxall, John P. Phillips, Richard A. Seasonal changes in the diet and feeding behaviour of a top predator indicate a flexible response to deteriorating oceanographic conditions |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Shifts in the diet of top predators can be linked to changes in environmental conditions. In this study, we tested relationships between environmental variation and seasonal changes in diet of a top predator, the grey-headed albatross Thalassarche chrysostoma, breeding at Bird Island, South Georgia in an austral summer of 1999/2000. Oceanographic conditions in that year around South Georgia were abnormal (i.e. anomalously high sea surface temperature to a relative 19-year long-term mean). The diet of grey-headed albatrosses showed high seasonal variation, shifting from cephalopods (42.9 % by mass) in late February to Antarctic krill Euphausia superba (58.3 %) in late April, and grey-headed albatrosses breeding performance was low (16.8 %). This study shows these albatrosses did not manage to find sufficient alternative prey and highlight the risk to top predators if there is an increase in the frequency or severity of food shortages in Antarctic waters. |
author2 |
British Antarctic Survey (BAS) Natural Environment Research Council (NERC) Institute of Marine Research University of Coimbra Portugal (UC) Centre d'Études Biologiques de Chizé (CEBC) Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS) Helmholtz Zentrum für Umweltforschung = Helmholtz Centre for Environmental Research (UFZ) |
format |
Article in Journal/Newspaper |
author |
Xavier, J.C. Louzao, Maite Thorpe, S. E. Ward, P. Hill, C. Roberts, D. Croxall, John P. Phillips, Richard A. |
author_facet |
Xavier, J.C. Louzao, Maite Thorpe, S. E. Ward, P. Hill, C. Roberts, D. Croxall, John P. Phillips, Richard A. |
author_sort |
Xavier, J.C. |
title |
Seasonal changes in the diet and feeding behaviour of a top predator indicate a flexible response to deteriorating oceanographic conditions |
title_short |
Seasonal changes in the diet and feeding behaviour of a top predator indicate a flexible response to deteriorating oceanographic conditions |
title_full |
Seasonal changes in the diet and feeding behaviour of a top predator indicate a flexible response to deteriorating oceanographic conditions |
title_fullStr |
Seasonal changes in the diet and feeding behaviour of a top predator indicate a flexible response to deteriorating oceanographic conditions |
title_full_unstemmed |
Seasonal changes in the diet and feeding behaviour of a top predator indicate a flexible response to deteriorating oceanographic conditions |
title_sort |
seasonal changes in the diet and feeding behaviour of a top predator indicate a flexible response to deteriorating oceanographic conditions |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-00831538 https://doi.org/10.1007/s00227-013-2212-x |
long_lat |
ENVELOPE(-38.060,-38.060,-54.004,-54.004) |
geographic |
Antarctic Austral Bird Island |
geographic_facet |
Antarctic Austral Bird Island |
genre |
Antarc* Antarctic Antarctic Krill Bird Island Euphausia superba |
genre_facet |
Antarc* Antarctic Antarctic Krill Bird Island Euphausia superba |
op_source |
ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal.science/hal-00831538 Marine Biology, 2013, 160, pp.1597-1606. ⟨10.1007/s00227-013-2212-x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-013-2212-x hal-00831538 https://hal.science/hal-00831538 doi:10.1007/s00227-013-2212-x |
op_doi |
https://doi.org/10.1007/s00227-013-2212-x |
container_title |
Marine Biology |
container_volume |
160 |
container_issue |
7 |
container_start_page |
1597 |
op_container_end_page |
1606 |
_version_ |
1766274012124545024 |