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Title |
Global Carbon Budget 2022 |
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Journal |
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Year |
2022 |
Publication |
Earth System Science Data |
Abbreviated Journal |
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Volume |
14 |
Issue |
11 |
Pages |
4811-4900 |
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416 |
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ISSN |
1866-3508 |
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yes |
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8701 |
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Title |
Selection-driven adaptation to the extreme Antarctic environment in the Emperor penguin |
Type |
Journal |
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Year |
2022 |
Publication |
Heredity |
Abbreviated Journal |
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Volume |
129 |
Issue |
6 |
Pages |
317-326 |
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Keywords |
Adaptation, Physiological Animals Antarctic Regions Genome Phylogeny Spheniscidae |
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Abstract |
The eco-evolutionary history of penguins is characterised by shifting from temperate to cold environments. Breeding in Antarctica, the Emperor penguin appears as an extreme outcome of this process, with unique features related to insulation, heat production and energy management. However, whether this species actually diverged from a less cold-adapted ancestor, more ecologically similar to its sister species, the King penguin, is still an open question. As the Antarctic colonisation likely resulted in vast changes in selective pressure experienced by the Emperor penguin, the relative quantification of the genomic signatures of selection, unique to each sister species, could answer this question. Applying phylogeny-based selection tests on 7651 orthologous genes, we identified a more pervasive selection shift in the Emperor penguin than in the King penguin, supporting the hypothesis that its extreme cold adaptation is a derived state. Furthermore, among candidate genes under selection, four (TRPM8, LEPR, CRB1, and SFI1) were identified before in other cold-adapted homeotherms, like the woolly Mammoth, while other 161 genes can be assigned to biological functions relevant to cold adaptation identified in previous studies. Location and structural effects of TRPM8 substitutions in Emperor and King penguin lineages support their functional role with putative divergent effects on thermal adaptation. We conclude that extreme cold adaptation in the Emperor penguin largely involved unique genetic options which, however, affect metabolic and physiological traits common to other cold-adapted homeotherms. |
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137 |
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ISSN |
1365-2540 |
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yes |
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Serial |
8700 |
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Journal |
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Year |
2023 |
Publication |
The Cryosphere |
Abbreviated Journal |
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Volume |
17 |
Issue |
12 |
Pages |
5241-5254 |
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Programme |
1110,1205 |
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Bachelor's thesis |
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ISSN |
1994-0416 |
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yes |
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Serial |
8699 |
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Title |
Towards Operational Fiducial Reference Measurement (FRM) Data for the Calibration and Validation of the Sentinel-3 Surface Topography Mission over Inland Waters, Sea Ice, and Land Ice |
Type |
Journal |
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Year |
2023 |
Publication |
Remote Sensing |
Abbreviated Journal |
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Volume |
15 |
Issue |
19 |
Pages |
4826 |
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Keywords |
FRM inland water surface height land ice height S3 land STM SAR altimeter sea ice thickness uncertainties |
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Abstract |
The Copernicus Sentinel-3 Surface Topography Mission (STM) Land Altimetry provides valuable surface elevation information over inland waters, sea ice, and land ice, thanks to its synthetic aperture radar (SAR) altimeter and its orbit that covers high-latitude polar regions. To ensure that these measurements are reliable and to maximise the return on investment, adequate validation of the geophysical retrieval methods, processing algorithms, and corrections must be performed using independent observations. The EU-ESA project St3TART (started July 2021) aims to generalise the concept of Fiducial Reference Measurements (FRMs) for the Copernicus Sentinel-3 STM. This work has gathered existing data, made new observations during field campaigns, and ensured that these observations meet the criteria of FRM standards so that they can be used to validate Sentinel-3 STM Land Altimetry products operationally. A roadmap for the operational provision of the FRM, including the definition, consolidation, and identification of the most relevant and cost-effective methods and protocols to be maintained, supported, or implemented, has been developed. The roadmap includes guidelines for SI traceability, definitions of FRM measurement procedures, processing methods, and uncertainty budget estimations. |
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411 |
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ISSN |
2072-4292 |
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2072-4292 |
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yes |
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Call Number |
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Serial |
8698 |
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Author |
Kozue Shiomi, Katsufumi Sato, Charles A. Bost, Yves Handrich |
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Title |
Stay the course: maintenance of consistent orientation by commuting penguins both underwater and at the water surface |
Type |
Journal |
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Year |
2023 |
Publication |
Marine Biology |
Abbreviated Journal |
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Volume |
170 |
Issue |
4 |
Pages |
42 |
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Keywords |
Bearing Compass Diving bird Navigation Orientation |
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Abstract |
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Programme |
394 |
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ISSN |
1432-1793 |
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yes |
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Call Number |
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Serial |
8697 |
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Title |
Potential for redistribution of post-moult habitat for Eudyptes penguins in the Southern Ocean under future climate conditions |
Type |
Journal |
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Year |
2023 |
Publication |
Global Change Biology |
Abbreviated Journal |
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Volume |
29 |
Issue |
3 |
Pages |
648-667 |
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Keywords |
climate change habitat preference models migration overwinter species redistributions Subantarctic penguins |
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Abstract |
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Programme |
394 |
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ISSN |
1365-2486 |
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yes |
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Serial |
8696 |
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Year |
2023 |
Publication |
Arctic, Antarctic, and Alpine Research |
Abbreviated Journal |
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Volume |
55 |
Issue |
1 |
Pages |
2194492 |
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Keywords |
Nunavik snow avalanches Time-lapse cameras weather data |
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Programme |
1148 |
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1523-0430 |
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yes |
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8695 |
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Title |
Shedding Light on a Dark Lake: How the Sun Transforms the Chemistry of Lakes |
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Peer-reviewed symposium |
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Year |
2022 |
Publication |
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Abbreviated Journal |
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1042 |
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8694 |
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Year |
2022 |
Publication |
Et pourtant elle tourne ! Eds. FONTANA, Laure et DE BEAUNE Sophie. Paris : CNRS Editions. |
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1217 |
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8693 |
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Author |
Yan Axel Gomez Coutouly |
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Book Chapter |
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Year |
2021 |
Publication |
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1217 |
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Bachelor's thesis |
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yes |
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8692 |
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