(Table 1) Egg laying and hatching dates and guarding duration of Adélie penguins (Pygoscelis adeliae) on Petrel Island, Antarctica
1. In Polar Regions, the extent and dynamics of sea-ice are changing. This affects the ocean productivity which consecutively impacts plankton communities and polar top predators like penguins. Yet, the underlying behavioural and physiological mechanisms remain poorly understood. 2. Here we monitore...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.807225 2023-05-15T13:04:56+02:00 (Table 1) Egg laying and hatching dates and guarding duration of Adélie penguins (Pygoscelis adeliae) on Petrel Island, Antarctica Beaulieu, Michaël Dervaux, Antoine Thierry, Anne-Mathilde Lazin, David Le Maho, Yvon Ropert-Coudert, Yan Spée, Marion Raclot, Thierry Ancel, André LATITUDE: -66.666700 * LONGITUDE: 140.016700 2010-02-14 text/tab-separated-values, 40 data points https://doi.pangaea.de/10.1594/PANGAEA.807225 https://doi.org/10.1594/PANGAEA.807225 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.807225 https://doi.org/10.1594/PANGAEA.807225 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Beaulieu, Michaël; Dervaux, Antoine; Thierry, Anne-Mathilde; Lazin, David; Le Maho, Yvon; Ropert-Coudert, Yan; Spée, Marion; Raclot, Thierry; Ancel, André (2010): When sea-ice clock is ahead of Adelie penguins' clock. Functional Ecology, 24(1), 93-102, https://doi.org/10.1111/j.1365-2435.2009.01638.x Antarctica BIO Biology Duration number of days International Polar Year (2007-2008) Interval comments IPY Observed Petrel_Is Pygoscelis adeliae egg laying date hatching date Sample amount Sex Standard deviation Dataset 2010 ftpangaea https://doi.org/10.1594/PANGAEA.807225 https://doi.org/10.1111/j.1365-2435.2009.01638.x 2023-01-20T09:00:31Z 1. In Polar Regions, the extent and dynamics of sea-ice are changing. This affects the ocean productivity which consecutively impacts plankton communities and polar top predators like penguins. Yet, the underlying behavioural and physiological mechanisms remain poorly understood. 2. Here we monitored the ecophysiological responses of Adelie penguin (Pygoscelis adeliae) pairs during two seasons of contrasting timing of sea-ice retreat. Beside classical breeding parameters like foraging trip duration, body mass and reproductive success, we also investigated food-related stress (via plasma corticosterone concentration), nutritional state (via metabolite levels) and the use of penguins' habitat (via blood isotopic values). 3. Body mass and reproductive success remained unchanged but foraging trips were shorter when sea-ice retreated earlier. Constant plasma corticosterone concentrations indicated that none of the feeding conditions resulted in a food-related stress. However metabolite levels were lower when sea-ice retreated early, suggesting that the foraging performance and the quality/quantity of food differed. Indeed isotopic ratios indicated that coastal prey like fish contributed more to the penguins' diet when sea-ice retreated prematurely. 4. The early sea-ice retreat was related to higher chlorophyll concentrations, known to favour krill recruitment. Paradoxically, this was not associated to a higher krill contribution in the penguins' diet. We propose that a shift in the phytoplankton quality (rather than quantity), affecting krill recruitment, forced penguins to switch to more available prey like coastal fish. 5. In some Antarctic regions, sea-ice is retreating earlier and earlier. In the present study, even though the timing of sea-ice retreat and the consecutive ocean productivity differed drastically between the 2 years, Adelie penguins were not severely affected because they were able to adjust their at-sea behaviour and thus maintained their body condition and reproductive success unchanged. 6. This ... Dataset Adelie penguin Antarc* Antarctic Antarctica International Polar Year IPY Petrel Island Pygoscelis adeliae Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Antarctic ENVELOPE(140.016700,140.016700,-66.666700,-66.666700) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Antarctica BIO Biology Duration number of days International Polar Year (2007-2008) Interval comments IPY Observed Petrel_Is Pygoscelis adeliae egg laying date hatching date Sample amount Sex Standard deviation |
spellingShingle |
Antarctica BIO Biology Duration number of days International Polar Year (2007-2008) Interval comments IPY Observed Petrel_Is Pygoscelis adeliae egg laying date hatching date Sample amount Sex Standard deviation Beaulieu, Michaël Dervaux, Antoine Thierry, Anne-Mathilde Lazin, David Le Maho, Yvon Ropert-Coudert, Yan Spée, Marion Raclot, Thierry Ancel, André (Table 1) Egg laying and hatching dates and guarding duration of Adélie penguins (Pygoscelis adeliae) on Petrel Island, Antarctica |
topic_facet |
Antarctica BIO Biology Duration number of days International Polar Year (2007-2008) Interval comments IPY Observed Petrel_Is Pygoscelis adeliae egg laying date hatching date Sample amount Sex Standard deviation |
description |
1. In Polar Regions, the extent and dynamics of sea-ice are changing. This affects the ocean productivity which consecutively impacts plankton communities and polar top predators like penguins. Yet, the underlying behavioural and physiological mechanisms remain poorly understood. 2. Here we monitored the ecophysiological responses of Adelie penguin (Pygoscelis adeliae) pairs during two seasons of contrasting timing of sea-ice retreat. Beside classical breeding parameters like foraging trip duration, body mass and reproductive success, we also investigated food-related stress (via plasma corticosterone concentration), nutritional state (via metabolite levels) and the use of penguins' habitat (via blood isotopic values). 3. Body mass and reproductive success remained unchanged but foraging trips were shorter when sea-ice retreated earlier. Constant plasma corticosterone concentrations indicated that none of the feeding conditions resulted in a food-related stress. However metabolite levels were lower when sea-ice retreated early, suggesting that the foraging performance and the quality/quantity of food differed. Indeed isotopic ratios indicated that coastal prey like fish contributed more to the penguins' diet when sea-ice retreated prematurely. 4. The early sea-ice retreat was related to higher chlorophyll concentrations, known to favour krill recruitment. Paradoxically, this was not associated to a higher krill contribution in the penguins' diet. We propose that a shift in the phytoplankton quality (rather than quantity), affecting krill recruitment, forced penguins to switch to more available prey like coastal fish. 5. In some Antarctic regions, sea-ice is retreating earlier and earlier. In the present study, even though the timing of sea-ice retreat and the consecutive ocean productivity differed drastically between the 2 years, Adelie penguins were not severely affected because they were able to adjust their at-sea behaviour and thus maintained their body condition and reproductive success unchanged. 6. This ... |
format |
Dataset |
author |
Beaulieu, Michaël Dervaux, Antoine Thierry, Anne-Mathilde Lazin, David Le Maho, Yvon Ropert-Coudert, Yan Spée, Marion Raclot, Thierry Ancel, André |
author_facet |
Beaulieu, Michaël Dervaux, Antoine Thierry, Anne-Mathilde Lazin, David Le Maho, Yvon Ropert-Coudert, Yan Spée, Marion Raclot, Thierry Ancel, André |
author_sort |
Beaulieu, Michaël |
title |
(Table 1) Egg laying and hatching dates and guarding duration of Adélie penguins (Pygoscelis adeliae) on Petrel Island, Antarctica |
title_short |
(Table 1) Egg laying and hatching dates and guarding duration of Adélie penguins (Pygoscelis adeliae) on Petrel Island, Antarctica |
title_full |
(Table 1) Egg laying and hatching dates and guarding duration of Adélie penguins (Pygoscelis adeliae) on Petrel Island, Antarctica |
title_fullStr |
(Table 1) Egg laying and hatching dates and guarding duration of Adélie penguins (Pygoscelis adeliae) on Petrel Island, Antarctica |
title_full_unstemmed |
(Table 1) Egg laying and hatching dates and guarding duration of Adélie penguins (Pygoscelis adeliae) on Petrel Island, Antarctica |
title_sort |
(table 1) egg laying and hatching dates and guarding duration of adélie penguins (pygoscelis adeliae) on petrel island, antarctica |
publisher |
PANGAEA |
publishDate |
2010 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.807225 https://doi.org/10.1594/PANGAEA.807225 |
op_coverage |
LATITUDE: -66.666700 * LONGITUDE: 140.016700 |
long_lat |
ENVELOPE(140.016700,140.016700,-66.666700,-66.666700) |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Adelie penguin Antarc* Antarctic Antarctica International Polar Year IPY Petrel Island Pygoscelis adeliae Sea ice |
genre_facet |
Adelie penguin Antarc* Antarctic Antarctica International Polar Year IPY Petrel Island Pygoscelis adeliae Sea ice |
op_source |
Supplement to: Beaulieu, Michaël; Dervaux, Antoine; Thierry, Anne-Mathilde; Lazin, David; Le Maho, Yvon; Ropert-Coudert, Yan; Spée, Marion; Raclot, Thierry; Ancel, André (2010): When sea-ice clock is ahead of Adelie penguins' clock. Functional Ecology, 24(1), 93-102, https://doi.org/10.1111/j.1365-2435.2009.01638.x |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.807225 https://doi.org/10.1594/PANGAEA.807225 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.807225 https://doi.org/10.1111/j.1365-2435.2009.01638.x |
_version_ |
1766375698871615488 |