Dynamic fine-scale sea icescape shapes adult emperor penguin foraging habitat in East Antarctica
The emperor penguin, an iconic species threatened by projected sea ice loss in Antarctica, has long been considered to forage at the fast ice edge, presumably relying on large/yearly persistent polynyas as their main foraging habitat during the breeding season. Using newly developed fine-scale sea i...
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Online Access: | https://doi.org/10.1029/2019GL084347 http://ecite.utas.edu.au/137266 |
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ftunivtasecite:oai:ecite.utas.edu.au:137266 2023-05-15T13:55:18+02:00 Dynamic fine-scale sea icescape shapes adult emperor penguin foraging habitat in East Antarctica Labrousse, S Fraser, AD Sumner, M Tamura, T Pinaud, D Wienecke, B Kirkwood, R Ropert-Coudert, Y Reisinger, R Jonsen, I Porter-Smith, R Barbraud, C Bost, C-A Ji, R Jenouvrier, S 2019 application/pdf https://doi.org/10.1029/2019GL084347 http://ecite.utas.edu.au/137266 en eng Amer Geophysical Union http://ecite.utas.edu.au/137266/1/137266 - Dynamic fine-scale sea icescape shapes adult emperor penguin foraging habitat.pdf http://dx.doi.org/10.1029/2019GL084347 Labrousse, S and Fraser, AD and Sumner, M and Tamura, T and Pinaud, D and Wienecke, B and Kirkwood, R and Ropert-Coudert, Y and Reisinger, R and Jonsen, I and Porter-Smith, R and Barbraud, C and Bost, C-A and Ji, R and Jenouvrier, S, Dynamic fine-scale sea icescape shapes adult emperor penguin foraging habitat in East Antarctica, Geophysical Research Letters, 46, (20) pp. 11206-11218. ISSN 0094-8276 (2019) [Refereed Article] http://ecite.utas.edu.au/137266 Biological Sciences Ecology Behavioural Ecology Refereed Article PeerReviewed 2019 ftunivtasecite https://doi.org/10.1029/2019GL084347 2020-06-01T22:16:17Z The emperor penguin, an iconic species threatened by projected sea ice loss in Antarctica, has long been considered to forage at the fast ice edge, presumably relying on large/yearly persistent polynyas as their main foraging habitat during the breeding season. Using newly developed fine-scale sea icescape data and historical penguin tracking data, this study for the first time suggests the importance of less recognized small openings, including cracks, flaw leads and ephemeral short-term polynyas, as foraging habitats for emperor penguins. The tracking data retrieved from 47 emperor penguins in two different colonies in East Antarctica suggest that those penguins spent 23% of their time in ephemeral polynyas and did not use the large/yearly persistent, well-studied polynyas, even if they occur much more regularly with predictable locations. These findings challenge our previous understanding of emperor penguin breeding habitats, highlighting the need for incorporating fine-scale seascape features when assessing the population persistence in a rapidly changing polar environment. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Emperor penguins Sea ice eCite UTAS (University of Tasmania) East Antarctica Geophysical Research Letters 46 20 11206 11218 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Ecology Behavioural Ecology |
spellingShingle |
Biological Sciences Ecology Behavioural Ecology Labrousse, S Fraser, AD Sumner, M Tamura, T Pinaud, D Wienecke, B Kirkwood, R Ropert-Coudert, Y Reisinger, R Jonsen, I Porter-Smith, R Barbraud, C Bost, C-A Ji, R Jenouvrier, S Dynamic fine-scale sea icescape shapes adult emperor penguin foraging habitat in East Antarctica |
topic_facet |
Biological Sciences Ecology Behavioural Ecology |
description |
The emperor penguin, an iconic species threatened by projected sea ice loss in Antarctica, has long been considered to forage at the fast ice edge, presumably relying on large/yearly persistent polynyas as their main foraging habitat during the breeding season. Using newly developed fine-scale sea icescape data and historical penguin tracking data, this study for the first time suggests the importance of less recognized small openings, including cracks, flaw leads and ephemeral short-term polynyas, as foraging habitats for emperor penguins. The tracking data retrieved from 47 emperor penguins in two different colonies in East Antarctica suggest that those penguins spent 23% of their time in ephemeral polynyas and did not use the large/yearly persistent, well-studied polynyas, even if they occur much more regularly with predictable locations. These findings challenge our previous understanding of emperor penguin breeding habitats, highlighting the need for incorporating fine-scale seascape features when assessing the population persistence in a rapidly changing polar environment. |
format |
Article in Journal/Newspaper |
author |
Labrousse, S Fraser, AD Sumner, M Tamura, T Pinaud, D Wienecke, B Kirkwood, R Ropert-Coudert, Y Reisinger, R Jonsen, I Porter-Smith, R Barbraud, C Bost, C-A Ji, R Jenouvrier, S |
author_facet |
Labrousse, S Fraser, AD Sumner, M Tamura, T Pinaud, D Wienecke, B Kirkwood, R Ropert-Coudert, Y Reisinger, R Jonsen, I Porter-Smith, R Barbraud, C Bost, C-A Ji, R Jenouvrier, S |
author_sort |
Labrousse, S |
title |
Dynamic fine-scale sea icescape shapes adult emperor penguin foraging habitat in East Antarctica |
title_short |
Dynamic fine-scale sea icescape shapes adult emperor penguin foraging habitat in East Antarctica |
title_full |
Dynamic fine-scale sea icescape shapes adult emperor penguin foraging habitat in East Antarctica |
title_fullStr |
Dynamic fine-scale sea icescape shapes adult emperor penguin foraging habitat in East Antarctica |
title_full_unstemmed |
Dynamic fine-scale sea icescape shapes adult emperor penguin foraging habitat in East Antarctica |
title_sort |
dynamic fine-scale sea icescape shapes adult emperor penguin foraging habitat in east antarctica |
publisher |
Amer Geophysical Union |
publishDate |
2019 |
url |
https://doi.org/10.1029/2019GL084347 http://ecite.utas.edu.au/137266 |
geographic |
East Antarctica |
geographic_facet |
East Antarctica |
genre |
Antarc* Antarctica East Antarctica Emperor penguins Sea ice |
genre_facet |
Antarc* Antarctica East Antarctica Emperor penguins Sea ice |
op_relation |
http://ecite.utas.edu.au/137266/1/137266 - Dynamic fine-scale sea icescape shapes adult emperor penguin foraging habitat.pdf http://dx.doi.org/10.1029/2019GL084347 Labrousse, S and Fraser, AD and Sumner, M and Tamura, T and Pinaud, D and Wienecke, B and Kirkwood, R and Ropert-Coudert, Y and Reisinger, R and Jonsen, I and Porter-Smith, R and Barbraud, C and Bost, C-A and Ji, R and Jenouvrier, S, Dynamic fine-scale sea icescape shapes adult emperor penguin foraging habitat in East Antarctica, Geophysical Research Letters, 46, (20) pp. 11206-11218. ISSN 0094-8276 (2019) [Refereed Article] http://ecite.utas.edu.au/137266 |
op_doi |
https://doi.org/10.1029/2019GL084347 |
container_title |
Geophysical Research Letters |
container_volume |
46 |
container_issue |
20 |
container_start_page |
11206 |
op_container_end_page |
11218 |
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1766261722915536896 |