Habitat use and sex-specific foraging behaviour of Adelie penguins throughout the breeding season in Adelie Land, East Antarctica
Background Marine predators are ecosystem sentinels because their foraging behaviour and reproductive success reflect the variability occurring in the lower trophic levels of the ecosystem. In an era of environmental change, monitoring top predators species can provide valuable insights into the zon...
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Online Access: | https://doi.org/10.1186/s40462-015-0052-7 http://www.ncbi.nlm.nih.gov/pubmed/26392864 http://ecite.utas.edu.au/105963 |
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ftunivtasecite:oai:ecite.utas.edu.au:105963 2023-05-15T13:04:20+02:00 Habitat use and sex-specific foraging behaviour of Adelie penguins throughout the breeding season in Adelie Land, East Antarctica Widmann, M Kato, A Raymond, B Angelier, F Arthur, B Chastel, O Pelle, M Raclot, T Ropert-Coudert, Y 2015 application/pdf https://doi.org/10.1186/s40462-015-0052-7 http://www.ncbi.nlm.nih.gov/pubmed/26392864 http://ecite.utas.edu.au/105963 en eng Biomed Central Ltd http://ecite.utas.edu.au/105963/1/widmann_et_al-habitat_use_sex_specific_foraging_behaviour_adelie_penguins-2015.pdf http://dx.doi.org/10.1186/s40462-015-0052-7 Widmann, M and Kato, A and Raymond, B and Angelier, F and Arthur, B and Chastel, O and Pelle, M and Raclot, T and Ropert-Coudert, Y, Habitat use and sex-specific foraging behaviour of Adelie penguins throughout the breeding season in Adelie Land, East Antarctica, Movement Ecology, 3 Article 30. ISSN 2051-3933 (2015) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/26392864 http://ecite.utas.edu.au/105963 Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Refereed Article PeerReviewed 2015 ftunivtasecite https://doi.org/10.1186/s40462-015-0052-7 2019-12-13T22:07:07Z Background Marine predators are ecosystem sentinels because their foraging behaviour and reproductive success reflect the variability occurring in the lower trophic levels of the ecosystem. In an era of environmental change, monitoring top predators species can provide valuable insights into the zones of ecological importance that need to be protected. In this context, we monitored the Adlie penguin ( Pygoscelis adeliae ) as a bio-indicator near Dumont dUrville, an area of the East Antarctic sector currently being considered for the establishment of a Marine Protected Area (MPA), using GPS-based tracking tags during the 2012/13 austral summer breeding season. Results The habitat use and foraging areas of the penguins differed by breeding stage and sex and were strongly associated with patterns in bathymetry and sea-ice distribution. The first trips, undertaken during the incubation phase, were longer than those during the guard phase and were associated with the northern limit of the sea-ice extent. During the guard phase, birds strongly depended on access to a polynya, a key feature in Antarctic marine ecosystem, in the vicinity of the colony. The opening of the ice-free area was synchronous with the hatching of chicks. Moreover, a sex-specific use of foraging habitat observed only after hatching suggests sex-specific differences in the diet in response to intra-specific competition. Conclusions Sea-ice features that could be affected by the climate change were important factors for the use of foraging habitat by the Adlie penguins. The extent of the foraging area observed in this study is congruent with the area of the proposed MPA. However, both penguin behavior and their environment should be monitored carefully. Article in Journal/Newspaper Adelie Land Antarc* Antarctic Antarctica East Antarctica Pygoscelis adeliae Sea ice eCite UTAS (University of Tasmania) Antarctic Austral East Antarctica Movement Ecology 3 1 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) |
spellingShingle |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Widmann, M Kato, A Raymond, B Angelier, F Arthur, B Chastel, O Pelle, M Raclot, T Ropert-Coudert, Y Habitat use and sex-specific foraging behaviour of Adelie penguins throughout the breeding season in Adelie Land, East Antarctica |
topic_facet |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) |
description |
Background Marine predators are ecosystem sentinels because their foraging behaviour and reproductive success reflect the variability occurring in the lower trophic levels of the ecosystem. In an era of environmental change, monitoring top predators species can provide valuable insights into the zones of ecological importance that need to be protected. In this context, we monitored the Adlie penguin ( Pygoscelis adeliae ) as a bio-indicator near Dumont dUrville, an area of the East Antarctic sector currently being considered for the establishment of a Marine Protected Area (MPA), using GPS-based tracking tags during the 2012/13 austral summer breeding season. Results The habitat use and foraging areas of the penguins differed by breeding stage and sex and were strongly associated with patterns in bathymetry and sea-ice distribution. The first trips, undertaken during the incubation phase, were longer than those during the guard phase and were associated with the northern limit of the sea-ice extent. During the guard phase, birds strongly depended on access to a polynya, a key feature in Antarctic marine ecosystem, in the vicinity of the colony. The opening of the ice-free area was synchronous with the hatching of chicks. Moreover, a sex-specific use of foraging habitat observed only after hatching suggests sex-specific differences in the diet in response to intra-specific competition. Conclusions Sea-ice features that could be affected by the climate change were important factors for the use of foraging habitat by the Adlie penguins. The extent of the foraging area observed in this study is congruent with the area of the proposed MPA. However, both penguin behavior and their environment should be monitored carefully. |
format |
Article in Journal/Newspaper |
author |
Widmann, M Kato, A Raymond, B Angelier, F Arthur, B Chastel, O Pelle, M Raclot, T Ropert-Coudert, Y |
author_facet |
Widmann, M Kato, A Raymond, B Angelier, F Arthur, B Chastel, O Pelle, M Raclot, T Ropert-Coudert, Y |
author_sort |
Widmann, M |
title |
Habitat use and sex-specific foraging behaviour of Adelie penguins throughout the breeding season in Adelie Land, East Antarctica |
title_short |
Habitat use and sex-specific foraging behaviour of Adelie penguins throughout the breeding season in Adelie Land, East Antarctica |
title_full |
Habitat use and sex-specific foraging behaviour of Adelie penguins throughout the breeding season in Adelie Land, East Antarctica |
title_fullStr |
Habitat use and sex-specific foraging behaviour of Adelie penguins throughout the breeding season in Adelie Land, East Antarctica |
title_full_unstemmed |
Habitat use and sex-specific foraging behaviour of Adelie penguins throughout the breeding season in Adelie Land, East Antarctica |
title_sort |
habitat use and sex-specific foraging behaviour of adelie penguins throughout the breeding season in adelie land, east antarctica |
publisher |
Biomed Central Ltd |
publishDate |
2015 |
url |
https://doi.org/10.1186/s40462-015-0052-7 http://www.ncbi.nlm.nih.gov/pubmed/26392864 http://ecite.utas.edu.au/105963 |
geographic |
Antarctic Austral East Antarctica |
geographic_facet |
Antarctic Austral East Antarctica |
genre |
Adelie Land Antarc* Antarctic Antarctica East Antarctica Pygoscelis adeliae Sea ice |
genre_facet |
Adelie Land Antarc* Antarctic Antarctica East Antarctica Pygoscelis adeliae Sea ice |
op_relation |
http://ecite.utas.edu.au/105963/1/widmann_et_al-habitat_use_sex_specific_foraging_behaviour_adelie_penguins-2015.pdf http://dx.doi.org/10.1186/s40462-015-0052-7 Widmann, M and Kato, A and Raymond, B and Angelier, F and Arthur, B and Chastel, O and Pelle, M and Raclot, T and Ropert-Coudert, Y, Habitat use and sex-specific foraging behaviour of Adelie penguins throughout the breeding season in Adelie Land, East Antarctica, Movement Ecology, 3 Article 30. ISSN 2051-3933 (2015) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/26392864 http://ecite.utas.edu.au/105963 |
op_doi |
https://doi.org/10.1186/s40462-015-0052-7 |
container_title |
Movement Ecology |
container_volume |
3 |
container_issue |
1 |
_version_ |
1766357539478306816 |