The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula
Abstract The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis was investigated at four colonies at the Danco Coast, Antarctic Peninsula, by the analysis of 399 pellets (regurgitated casts) collected during February and March 1998 and 2000. Overall, demersal-benthic fish were the m...
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Online Access: | http://dx.doi.org/10.1017/s0954102009001746 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102009001746 |
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crcambridgeupr:10.1017/s0954102009001746 2024-03-03T08:37:43+00:00 The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula Casaux, R. Baroni, A. Ramón, A. Bertolin, M. Di Prinzio, C.Y. 2009 http://dx.doi.org/10.1017/s0954102009001746 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102009001746 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 21, issue 3, page 221-227 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2009 crcambridgeupr https://doi.org/10.1017/s0954102009001746 2024-02-08T08:47:38Z Abstract The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis was investigated at four colonies at the Danco Coast, Antarctic Peninsula, by the analysis of 399 pellets (regurgitated casts) collected during February and March 1998 and 2000. Overall, demersal-benthic fish were the most frequent and important prey at all the colonies sampled, followed by octopods and gastropods. Amongst the fish, Notothenia coriiceps and Gobionotothen gibberifrons were the main prey in all of the sampling sites in both seasons. The composition of the diet of post-breeding shags differed from that observed in the previous breeding season. Post-breeders preyed on the same fish species consumed by breeders, although in different proportions and on larger specimens. The information provided here differs from that reported for post-breeding individuals belonging to other shag species and also for post-breeding Antarctic shags. Our results, as well as the differences with previous studies, are discussed in relation to differences in prey availability among localities and to the use of alternative foraging grounds at the end of the breeding period. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Cambridge University Press Antarctic Antarctic Peninsula Danco ENVELOPE(-61.033,-61.033,-64.717,-64.717) Danco Coast ENVELOPE(-62.000,-62.000,-64.700,-64.700) Antarctic Science 21 3 221 227 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Casaux, R. Baroni, A. Ramón, A. Bertolin, M. Di Prinzio, C.Y. The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis was investigated at four colonies at the Danco Coast, Antarctic Peninsula, by the analysis of 399 pellets (regurgitated casts) collected during February and March 1998 and 2000. Overall, demersal-benthic fish were the most frequent and important prey at all the colonies sampled, followed by octopods and gastropods. Amongst the fish, Notothenia coriiceps and Gobionotothen gibberifrons were the main prey in all of the sampling sites in both seasons. The composition of the diet of post-breeding shags differed from that observed in the previous breeding season. Post-breeders preyed on the same fish species consumed by breeders, although in different proportions and on larger specimens. The information provided here differs from that reported for post-breeding individuals belonging to other shag species and also for post-breeding Antarctic shags. Our results, as well as the differences with previous studies, are discussed in relation to differences in prey availability among localities and to the use of alternative foraging grounds at the end of the breeding period. |
format |
Article in Journal/Newspaper |
author |
Casaux, R. Baroni, A. Ramón, A. Bertolin, M. Di Prinzio, C.Y. |
author_facet |
Casaux, R. Baroni, A. Ramón, A. Bertolin, M. Di Prinzio, C.Y. |
author_sort |
Casaux, R. |
title |
The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula |
title_short |
The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula |
title_full |
The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula |
title_fullStr |
The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula |
title_full_unstemmed |
The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula |
title_sort |
diet of post-breeding antarctic shags phalacrocorax bransfieldensis at the danco coast, antarctic peninsula |
publisher |
Cambridge University Press (CUP) |
publishDate |
2009 |
url |
http://dx.doi.org/10.1017/s0954102009001746 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102009001746 |
long_lat |
ENVELOPE(-61.033,-61.033,-64.717,-64.717) ENVELOPE(-62.000,-62.000,-64.700,-64.700) |
geographic |
Antarctic Antarctic Peninsula Danco Danco Coast |
geographic_facet |
Antarctic Antarctic Peninsula Danco Danco Coast |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science |
op_source |
Antarctic Science volume 21, issue 3, page 221-227 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102009001746 |
container_title |
Antarctic Science |
container_volume |
21 |
container_issue |
3 |
container_start_page |
221 |
op_container_end_page |
227 |
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1792500946787368960 |