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Title |
Keystone seabird may face thermoregulatory challenges in a warming Arctic |
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Journal |
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Year |
2023 |
Publication |
Scientific Reports |
Abbreviated Journal |
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Volume |
13 |
Issue |
1 |
Pages |
16733 |
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Keywords |
Climate-change ecology Ecophysiology |
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Abstract |
Climate change affects the Arctic more than any other region, resulting in evolving weather, vanishing sea ice and altered biochemical cycling, which may increase biotic exposure to chemical pollution. We tested thermoregulatory impacts of these changes on the most abundant Arctic seabird, the little auk (Alle alle). This small diving species uses sea ice-habitats for foraging on zooplankton and resting. We equipped eight little auks with 3D accelerometers to monitor behavior, and ingested temperature recorders to measure body temperature (Tb). We also recorded weather conditions, and collected blood to assess mercury (Hg) contamination. There were nonlinear relationships between time engaged in different behaviors and Tb. Tb increased on sea ice, following declines while foraging in polar waters, but changed little when birds were resting on water. Tb also increased when birds were flying, and decreased at the colony after being elevated during flight. Weather conditions, but not Hg contamination, also affected Tb. However, given our small sample size, further research regarding thermoregulatory effects of Hg is warranted. Results suggest that little auk Tb varies with behavior and weather conditions, and that loss of sea ice due to global warming may cause thermoregulatory and energic challenges during foraging trips at sea. |
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388 |
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2045-2322 |
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8778 |
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Title |
Carryover effects of winter mercury contamination on summer concentrations and reproductive performance in little auks |
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Journal |
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Year |
2023 |
Publication |
Environmental Pollution |
Abbreviated Journal |
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Volume |
318 |
Issue |
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Pages |
120774 |
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Keywords |
Blood Chick growth Feathers Migration Reproduction Seabird Telomeres |
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388 |
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0269-7491 |
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yes |
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8777 |
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Title |
Cold adaptation does not handicap warm tolerance in the most abundant Arctic seabird |
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Year |
2024 |
Publication |
Proceedings of the Royal Society B: Biological Sciences |
Abbreviated Journal |
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Volume |
291 |
Issue |
2015 |
Pages |
20231887 |
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Keywords |
Animal energetics dovekie ecophysiology evolutionary legacy global warming phylogenic analyses |
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388 |
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8776 |
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Title |
Diving behaviour of southern elephant seals: new models of behavioural and ecophysiological adjustments of oxygen store management |
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Year |
2023 |
Publication |
Journal of experimental biology |
Abbreviated Journal |
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Volume |
226 |
Issue |
13 |
Pages |
jeb245157 |
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1201 |
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ISSN |
0022-0949 |
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yes |
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Call Number |
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Serial |
8775 |
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Author |
Clive R. McMahon, Mark A. Hindell, Jean Benoit Charrassin, Richard Coleman, Christophe Guinet, Robert Harcourt, Sara Labrousse, Benjemin Raymond, Michael Sumner, Natalia Ribeiro |
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Title |
Southern Ocean pinnipeds provide bathymetric insights on the East Antarctic continental shelf |
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Journal |
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Year |
2023 |
Publication |
Communications Earth & Environment |
Abbreviated Journal |
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Volume |
4 |
Issue |
1 |
Pages |
1-10 |
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Keywords |
Environmental sciences Ocean sciences |
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1201 |
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ISSN |
2662-4435 |
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Approved |
yes |
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Call Number |
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Serial |
8774 |
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Title |
A miniature biomimetic sonar and movement tag to study the biotic environment and predator-prey interactions in aquatic animals |
Type |
Journal |
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Year |
2019 |
Publication |
Deep Sea Research Part I: Oceanographic Research Papers |
Abbreviated Journal |
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Volume |
148 |
Issue |
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Pages |
1-11 |
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Keywords |
Biologging Elephant seal Fisheries sonar Foraging ecology Predator-prey interactions Prey field mapping |
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Abstract |
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Programme |
1201 |
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ISSN |
0967-0637 |
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Approved |
yes |
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Call Number |
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Serial |
8773 |
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Author |
Chengbin Peng, Carlos M. Duarte, Daniel P. Costa, Christophe Guinet, Robert G. Harcourt, Mark A. Hindell, Clive R. McMahon, Monica Muelbert, Michele Thums, Ka-Chun Wong, Xiangliang Zhang |
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Title |
Deep Learning Resolves Representative Movement Patterns in a Marine Predator Species |
Type |
Journal |
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Year |
2019 |
Publication |
Applied Sciences |
Abbreviated Journal |
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Volume |
9 |
Issue |
14 |
Pages |
2935 |
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Keywords |
marine animal movement analysis recurrent neural networks representative patterns |
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Abstract |
The analysis of animal movement from telemetry data provides insights into how and why animals move. While traditional approaches to such analysis mostly focus on predicting animal states during movement, we describe an approach that allows us to identify representative movement patterns of different animal groups. To do this, we propose a carefully designed recurrent neural network and combine it with telemetry data for automatic feature extraction and identification of non-predefined representative patterns. In the experiment, we consider a particular marine predator species, the southern elephant seal, as an example. With our approach, we identify that the male seals in our data set share similar movement patterns when they are close to land. We identify this pattern recurring in a number of distant locations, consistent with alternative approaches from previous research. |
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1201 |
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ISSN |
2076-3417 |
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yes |
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Call Number |
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Serial |
8772 |
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Author |
N. Aubone, M. Saraceno, M. L. Torres Alberto, J. Campagna, L. Le Ster, B. Picard, M. Hindell, C. Campagna, C. R. Guinet |
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Title |
Physical changes recorded by a deep diving seal on the Patagonian slope drive large ecological changes |
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Journal |
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Year |
2021 |
Publication |
Journal of Marine Systems |
Abbreviated Journal |
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Volume |
223 |
Issue |
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Pages |
103612 |
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Keywords |
Elephant seals Malvinas current Patagonian shelf slope Southwestern Atlantic Ocean |
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Programme |
1201 |
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ISSN |
0924-7963 |
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yes |
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Call Number |
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Serial |
8771 |
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Title |
Improved accuracy and spatial resolution for bio-logging-derived chlorophyll a fluorescence measurements in the Southern Ocean |
Type |
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Year |
2023 |
Publication |
Frontiers in Marine Science |
Abbreviated Journal |
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Volume |
10 |
Issue |
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Pages |
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Keywords |
bio-logging tag chla fluorescence Sensor calibration Southern elephant seal Southern Ocean Submesoscale |
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1201 |
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ISSN |
2296-7745 |
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yes |
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Serial |
8770 |
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Title |
Ice fog observed at cirrus temperatures at Dome C, Antarctic Plateau |
Type |
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Year |
2022 |
Publication |
Atmospheric Chemistry and Physics |
Abbreviated Journal |
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Volume |
22 |
Issue |
19 |
Pages |
12857-12872 |
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Programme |
1013 |
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ISSN |
1680-7316 |
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yes |
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Call Number |
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Serial |
8769 |
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