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Vaissière Marie. (2023). Invasions biologiques : de quelle manière les phénomènes de tris spatiaux modulent-ils la diversité fonctionnelle des individus le long d’un gradient d’invasion ?.
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. (2023). (Vol. 12).
Keywords: Animals Antarctic Antarctic Regions Ecoimmunology Field study Immunity Spheniscidae Stress
Programme: 1091
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. (2023). (Vol. 11).
Keywords: Antarctica basal corticosterone disturbance Human activity Pygoscelis adeliae seabird stress response stress-induced corticosterone
Programme: 1091
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. (2023). (Vol. 96).
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. (2023). Improved accuracy and spatial resolution for bio-logging-derived chlorophyll a fluorescence measurements in the Southern Ocean (Vol. 10).
Keywords: bio-logging tag chla fluorescence Sensor calibration Southern elephant seal Southern Ocean Submesoscale
Programme: 1201
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Clive R. McMahon, Mark A. Hindell, Jean Benoit Charrassin, Richard Coleman, Christophe Guinet, Robert Harcourt, Sara Labrousse, Benjemin Raymond, Michael Sumner, Natalia Ribeiro. (2023). Southern Ocean pinnipeds provide bathymetric insights on the East Antarctic continental shelf (Vol. 4).
Keywords: Environmental sciences Ocean sciences
Programme: 1201
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. (2023). Diving behaviour of southern elephant seals: new models of behavioural and ecophysiological adjustments of oxygen store management (Vol. 226).
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. (2023). Carryover effects of winter mercury contamination on summer concentrations and reproductive performance in little auks (Vol. 318).
Keywords: Blood Chick growth Feathers Migration Reproduction Seabird Telomeres
Programme: 388
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. (2023). Keystone seabird may face thermoregulatory challenges in a warming Arctic (Vol. 13).
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.
Keywords: Climate-change ecology Ecophysiology
Programme: 388
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. (2023). In Situ VTOL Drone-Borne Observations of Temperature and Relative Humidity over Dome C, Antarctica (Vol. 7).
Keywords: Antarctica Concordia station drone free troposphere planetary boundary layer relative humidity temperature VTOL
Programme: 910
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