Where’s the best supermarket deal? Female Southern Rockhopper Penguins ( Eudyptes chrysocome ) show variable foraging areas during the guard stage at Isla de los Estados, Argentina
Understanding the spatial distribution of seabirds contributes to comprehending their ecological requirements and dispersion patterns. We studied the at-sea distribution of female Southern Rockhopper Penguins (Eudyptes chrysocome (J.R. Forster, 1781)) at Isla de los Estados colony during the early c...
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Language: | English |
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2022
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Online Access: | http://dx.doi.org/10.1139/cjz-2021-0020 https://cdnsciencepub.com/doi/full-xml/10.1139/cjz-2021-0020 https://cdnsciencepub.com/doi/pdf/10.1139/cjz-2021-0020 |
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crcansciencepubl:10.1139/cjz-2021-0020 2023-12-17T10:49:18+01:00 Where’s the best supermarket deal? Female Southern Rockhopper Penguins ( Eudyptes chrysocome ) show variable foraging areas during the guard stage at Isla de los Estados, Argentina Rosciano, Natalia G. Pütz, Klemens Polito, Michael J. Raya Rey, Andrea 2022 http://dx.doi.org/10.1139/cjz-2021-0020 https://cdnsciencepub.com/doi/full-xml/10.1139/cjz-2021-0020 https://cdnsciencepub.com/doi/pdf/10.1139/cjz-2021-0020 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 100, issue 1, page 46-55 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2022 crcansciencepubl https://doi.org/10.1139/cjz-2021-0020 2023-11-19T13:39:27Z Understanding the spatial distribution of seabirds contributes to comprehending their ecological requirements and dispersion patterns. We studied the at-sea distribution of female Southern Rockhopper Penguins (Eudyptes chrysocome (J.R. Forster, 1781)) at Isla de los Estados colony during the early chick-rearing period. We used a clustering analysis approach to identify different groups according to the foraging trip (tracking and diving data from GPS and temperature and depth data loggers) and diet (δ 15 N composition on blood samples) characteristics. Foraging trips differed in duration, location, and dive depths explored. Females in clusters 1 and 3 traveled longer distances and in opposite directions (36.3 ± 21.3 and 40.3 ± 14.0 km, respectively). Females in cluster 2 fed closer to the colony (16.8 ± 7.8 km). Dives occurred in pelagic habitats. Higher δ 15 N values suggested a greater proportion of fish (e.g., the Fuegian sprat, Sprattus fuegensis (Jenyns, 1842)) consumption in the northern foraging areas (cluster 1). The variability observed in the spatial distribution suggests flexibility in the foraging behavior of Southern Rockhopper Penguins and availability of adequate foraging areas within the colony range during the early chick-rearing period, both important features for Southern Rockhopper Penguin population. These results contribute to understanding the use of the Southern Ocean by marine mesopredators and top predators and to the marine spatial planning in the area. Article in Journal/Newspaper Rockhopper penguin Southern Ocean Canadian Science Publishing (via Crossref) Southern Ocean Argentina Canadian Journal of Zoology 100 1 46 55 |
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Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Rosciano, Natalia G. Pütz, Klemens Polito, Michael J. Raya Rey, Andrea Where’s the best supermarket deal? Female Southern Rockhopper Penguins ( Eudyptes chrysocome ) show variable foraging areas during the guard stage at Isla de los Estados, Argentina |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Understanding the spatial distribution of seabirds contributes to comprehending their ecological requirements and dispersion patterns. We studied the at-sea distribution of female Southern Rockhopper Penguins (Eudyptes chrysocome (J.R. Forster, 1781)) at Isla de los Estados colony during the early chick-rearing period. We used a clustering analysis approach to identify different groups according to the foraging trip (tracking and diving data from GPS and temperature and depth data loggers) and diet (δ 15 N composition on blood samples) characteristics. Foraging trips differed in duration, location, and dive depths explored. Females in clusters 1 and 3 traveled longer distances and in opposite directions (36.3 ± 21.3 and 40.3 ± 14.0 km, respectively). Females in cluster 2 fed closer to the colony (16.8 ± 7.8 km). Dives occurred in pelagic habitats. Higher δ 15 N values suggested a greater proportion of fish (e.g., the Fuegian sprat, Sprattus fuegensis (Jenyns, 1842)) consumption in the northern foraging areas (cluster 1). The variability observed in the spatial distribution suggests flexibility in the foraging behavior of Southern Rockhopper Penguins and availability of adequate foraging areas within the colony range during the early chick-rearing period, both important features for Southern Rockhopper Penguin population. These results contribute to understanding the use of the Southern Ocean by marine mesopredators and top predators and to the marine spatial planning in the area. |
format |
Article in Journal/Newspaper |
author |
Rosciano, Natalia G. Pütz, Klemens Polito, Michael J. Raya Rey, Andrea |
author_facet |
Rosciano, Natalia G. Pütz, Klemens Polito, Michael J. Raya Rey, Andrea |
author_sort |
Rosciano, Natalia G. |
title |
Where’s the best supermarket deal? Female Southern Rockhopper Penguins ( Eudyptes chrysocome ) show variable foraging areas during the guard stage at Isla de los Estados, Argentina |
title_short |
Where’s the best supermarket deal? Female Southern Rockhopper Penguins ( Eudyptes chrysocome ) show variable foraging areas during the guard stage at Isla de los Estados, Argentina |
title_full |
Where’s the best supermarket deal? Female Southern Rockhopper Penguins ( Eudyptes chrysocome ) show variable foraging areas during the guard stage at Isla de los Estados, Argentina |
title_fullStr |
Where’s the best supermarket deal? Female Southern Rockhopper Penguins ( Eudyptes chrysocome ) show variable foraging areas during the guard stage at Isla de los Estados, Argentina |
title_full_unstemmed |
Where’s the best supermarket deal? Female Southern Rockhopper Penguins ( Eudyptes chrysocome ) show variable foraging areas during the guard stage at Isla de los Estados, Argentina |
title_sort |
where’s the best supermarket deal? female southern rockhopper penguins ( eudyptes chrysocome ) show variable foraging areas during the guard stage at isla de los estados, argentina |
publisher |
Canadian Science Publishing |
publishDate |
2022 |
url |
http://dx.doi.org/10.1139/cjz-2021-0020 https://cdnsciencepub.com/doi/full-xml/10.1139/cjz-2021-0020 https://cdnsciencepub.com/doi/pdf/10.1139/cjz-2021-0020 |
geographic |
Southern Ocean Argentina |
geographic_facet |
Southern Ocean Argentina |
genre |
Rockhopper penguin Southern Ocean |
genre_facet |
Rockhopper penguin Southern Ocean |
op_source |
Canadian Journal of Zoology volume 100, issue 1, page 46-55 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjz-2021-0020 |
container_title |
Canadian Journal of Zoology |
container_volume |
100 |
container_issue |
1 |
container_start_page |
46 |
op_container_end_page |
55 |
_version_ |
1785573701503156224 |