The rise and fall of an ancient Adelie penguin 'supercolony' at Cape Adare, Antarctica
We report new discoveries and radiocarbon dates on active and abandoned Adélie penguin (Pygoscelis adeliae) colonies at Cape Adare, Antarctica. This colony, first established at approximately 2000 BP (calendar years before present, i.e. 1950), is currently the largest for this species with approxima...
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U.S. Antarctic Program (USAP) Data Center
2020
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Online Access: | https://dx.doi.org/10.15784/601327 https://www.usap-dc.org/view/dataset/601327 |
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ftdatacite:10.15784/601327 2023-05-15T13:04:43+02:00 The rise and fall of an ancient Adelie penguin 'supercolony' at Cape Adare, Antarctica Emslie, Steve Mckenzie, Ashley Patterson, William 2020 https://dx.doi.org/10.15784/601327 https://www.usap-dc.org/view/dataset/601327 en eng U.S. Antarctic Program (USAP) Data Center Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0] https://creativecommons.org/licenses/by-nc-sa/3.0/us CC-BY-NC-SA Stable Isotopes Adelie Penguin Population Movement Sea Level Rise Biology Biosphere Cryosphere Antarctica dataset Dataset 2020 ftdatacite https://doi.org/10.15784/601327 2021-11-05T12:55:41Z We report new discoveries and radiocarbon dates on active and abandoned Adélie penguin (Pygoscelis adeliae) colonies at Cape Adare, Antarctica. This colony, first established at approximately 2000 BP (calendar years before present, i.e. 1950), is currently the largest for this species with approximately 338 000 breeding pairs, most located on lowlying Ridley Beach. We hypothesize that this colony first formed after fast ice began blocking open-water access by breeding penguins to the Scott Coast in the southern Ross Sea during a cooling period also at approximately 2000 BP. Our results suggest that the new colony at Cape Adare continued to grow, expanding to a large upper terrace above Ridley Beach, until it exceeded approximately 500 000 breeding pairs (a 'supercolony') by approximately 1200 BP. The high marine productivity associated with the Ross Sea polynya and continental shelf break supported this growth, but the colony collapsed to its present size for unknown reasons after approximately 1200 BP. Ridley Beach will probably be abandoned in the near future due to rising sea level in this region. We predict that penguins will retreat to higher elevations at Cape Adare and that the Scott Coast will be reoccupied by breeding penguins as fast ice continues to dissipate earlier each summer, restoring open-water access to beaches there. Dataset Adelie penguin Antarc* Antarctica Pygoscelis adeliae Ross Sea DataCite Metadata Store (German National Library of Science and Technology) Ross Sea Adare ENVELOPE(170.233,170.233,-71.283,-71.283) Cape Adare ENVELOPE(175.000,175.000,-71.000,-71.000) Scott Coast ENVELOPE(162.500,162.500,-76.500,-76.500) Ridley Beach ENVELOPE(170.217,170.217,-71.300,-71.300) Ridley ENVELOPE(-58.017,-58.017,-61.850,-61.850) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Stable Isotopes Adelie Penguin Population Movement Sea Level Rise Biology Biosphere Cryosphere Antarctica |
spellingShingle |
Stable Isotopes Adelie Penguin Population Movement Sea Level Rise Biology Biosphere Cryosphere Antarctica Emslie, Steve Mckenzie, Ashley Patterson, William The rise and fall of an ancient Adelie penguin 'supercolony' at Cape Adare, Antarctica |
topic_facet |
Stable Isotopes Adelie Penguin Population Movement Sea Level Rise Biology Biosphere Cryosphere Antarctica |
description |
We report new discoveries and radiocarbon dates on active and abandoned Adélie penguin (Pygoscelis adeliae) colonies at Cape Adare, Antarctica. This colony, first established at approximately 2000 BP (calendar years before present, i.e. 1950), is currently the largest for this species with approximately 338 000 breeding pairs, most located on lowlying Ridley Beach. We hypothesize that this colony first formed after fast ice began blocking open-water access by breeding penguins to the Scott Coast in the southern Ross Sea during a cooling period also at approximately 2000 BP. Our results suggest that the new colony at Cape Adare continued to grow, expanding to a large upper terrace above Ridley Beach, until it exceeded approximately 500 000 breeding pairs (a 'supercolony') by approximately 1200 BP. The high marine productivity associated with the Ross Sea polynya and continental shelf break supported this growth, but the colony collapsed to its present size for unknown reasons after approximately 1200 BP. Ridley Beach will probably be abandoned in the near future due to rising sea level in this region. We predict that penguins will retreat to higher elevations at Cape Adare and that the Scott Coast will be reoccupied by breeding penguins as fast ice continues to dissipate earlier each summer, restoring open-water access to beaches there. |
format |
Dataset |
author |
Emslie, Steve Mckenzie, Ashley Patterson, William |
author_facet |
Emslie, Steve Mckenzie, Ashley Patterson, William |
author_sort |
Emslie, Steve |
title |
The rise and fall of an ancient Adelie penguin 'supercolony' at Cape Adare, Antarctica |
title_short |
The rise and fall of an ancient Adelie penguin 'supercolony' at Cape Adare, Antarctica |
title_full |
The rise and fall of an ancient Adelie penguin 'supercolony' at Cape Adare, Antarctica |
title_fullStr |
The rise and fall of an ancient Adelie penguin 'supercolony' at Cape Adare, Antarctica |
title_full_unstemmed |
The rise and fall of an ancient Adelie penguin 'supercolony' at Cape Adare, Antarctica |
title_sort |
rise and fall of an ancient adelie penguin 'supercolony' at cape adare, antarctica |
publisher |
U.S. Antarctic Program (USAP) Data Center |
publishDate |
2020 |
url |
https://dx.doi.org/10.15784/601327 https://www.usap-dc.org/view/dataset/601327 |
long_lat |
ENVELOPE(170.233,170.233,-71.283,-71.283) ENVELOPE(175.000,175.000,-71.000,-71.000) ENVELOPE(162.500,162.500,-76.500,-76.500) ENVELOPE(170.217,170.217,-71.300,-71.300) ENVELOPE(-58.017,-58.017,-61.850,-61.850) |
geographic |
Ross Sea Adare Cape Adare Scott Coast Ridley Beach Ridley |
geographic_facet |
Ross Sea Adare Cape Adare Scott Coast Ridley Beach Ridley |
genre |
Adelie penguin Antarc* Antarctica Pygoscelis adeliae Ross Sea |
genre_facet |
Adelie penguin Antarc* Antarctica Pygoscelis adeliae Ross Sea |
op_rights |
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0] https://creativecommons.org/licenses/by-nc-sa/3.0/us |
op_rightsnorm |
CC-BY-NC-SA |
op_doi |
https://doi.org/10.15784/601327 |
_version_ |
1766369006438055936 |