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Author |
Alain Royer, Florent Domine, Alexandre Roy, Alexandre Langlois, Nicolas Marchand, Gautier Davesne |
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Title |
New northern snowpack classification linked to vegetation cover on a latitudinal mega-transect across northeastern Canada |
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Year |
2021 |
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Pages |
1-18 |
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1042 |
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1195-6860 |
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1195-6860 |
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yes |
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7971 |
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Title |
Fifty million years of beetle evolution along the Antarctic Polar Front |
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Journal |
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Year |
2021 |
Publication |
Proceedings of the National Academy of Sciences |
Abbreviated Journal |
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Volume |
118 |
Issue |
24 |
Pages |
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Keywords |
Antarctica herbivory island biogeography paleoclimate species radiation |
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136 |
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0027-8424, 1091-6490 |
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yes |
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Serial |
8087 |
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Author |
Mike Lockwood, Carl Haines, Luke A. Barnard, Mathew J. Owens, Chris J. Scott, Aude Chambodut, Kathryn A. McWilliams |
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Title |
Semi-annual, annual and Universal Time variations in the magnetosphere and in geomagnetic activity: 4. Polar Cap motions and origins of the Universal Time effect |
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Year |
2021 |
Publication |
Journal of Space Weather and Space Climate |
Abbreviated Journal |
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Volume |
11 |
Issue |
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Pages |
15 |
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139 |
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ISSN |
2115-7251 |
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yes |
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Call Number |
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Serial |
8076 |
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Title |
The ? Pictoris b Hill sphere transit campaign – I. Photometric limits to dust and rings |
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Journal |
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Year |
2021 |
Publication |
Astronomy & Astrophysics |
Abbreviated Journal |
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Volume |
648 |
Issue |
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Pages |
A15 |
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Programme |
1066 |
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ISSN |
0004-6361, 1432-0746 |
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Approved |
yes |
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Call Number |
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Serial |
8195 |
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Journal |
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Year |
2021 |
Publication |
Communications Earth & Environment |
Abbreviated Journal |
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Volume |
2 |
Issue |
1 |
Pages |
1-8 |
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Keywords |
Physical oceanography |
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Abstract |
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Programme |
688 |
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Edition |
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ISSN |
2662-4435 |
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Approved |
yes |
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Call Number |
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Serial |
8387 |
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Author |
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Title |
Fine-scale structures as spots of increased fish concentration in the open ocean |
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Journal |
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Year |
2021 |
Publication |
Scientific Reports |
Abbreviated Journal |
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Volume |
11 |
Issue |
1 |
Pages |
15805 |
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Keywords |
Fisheries Marine biology Physical oceanography |
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Abstract |
Oceanic frontal zones have been shown to deeply influence the distribution of primary producers and, at the other extreme of the trophic web, top predators. However, the relationship between these structures and intermediate trophic levels is much more obscure. In this paper we address this knowledge gap by comparing acoustic measurements of mesopelagic fish concentrations to satellite-derived fine-scale Lagrangian Coherent Structures in the Indian sector of the Southern Ocean. First, we demonstrate that higher fish concentrations occur more frequently in correspondence with strong Lagrangian Coherent Structures. Secondly, we illustrate that, while increased fish densities are more likely to be observed over these structures, the presence of a fine-scale feature does not imply a concomitant fish accumulation, as other factors affect fish distribution. Thirdly, we show that, when only chlorophyll-rich waters are considered, front intensity modulates significantly more the local fish concentration. Finally, we discuss a model representing fish movement along Lagrangian features, specifically built for mid-trophic levels. Its results, obtained with realistic parameters, are qualitatively consistent with the observations and the spatio-temporal scales analysed. Overall, these findings may help to integrate intermediate trophic levels in trophic models, which can ultimately support management and conservation policies. |
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Programme |
109 |
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ISSN |
2045-2322 |
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Approved |
yes |
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Call Number |
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Serial |
8384 |
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Author |
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Title |
Marine habitat use and feeding ecology of introduced anadromous brown trout at the colonization front of the sub-Antarctic Kerguelen archipelago |
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Journal |
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Year |
2021 |
Publication |
Scientific Reports |
Abbreviated Journal |
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Volume |
11 |
Issue |
1 |
Pages |
11917 |
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Keywords |
Animal migration Behavioural ecology Ecology Stable isotope analysis |
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Abstract |
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Programme |
1041 |
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Campaign |
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Edition |
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ISSN |
2045-2322 |
ISBN |
2045-2322 |
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Approved |
yes |
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Call Number |
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Serial |
8180 |
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Author |
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Title |
Fine-scale spatial segregation in a pelagic seabird driven by differential use of tidewater glacier fronts |
Type |
Journal |
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Year |
2021 |
Publication |
Scientific Reports |
Abbreviated Journal |
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Volume |
11 |
Issue |
1 |
Pages |
22109 |
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Keywords |
Behavioural ecology Biogeography |
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Abstract |
In colonially breeding marine predators, individual movements and colonial segregation are influenced by seascape characteristics. Tidewater glacier fronts are important features of the Arctic seascape and are often described as foraging hotspots. Albeit their documented importance for wildlife, little is known about their structuring effect on Arctic predator movements and space use. In this study, we tested the hypothesis that tidewater glacier fronts can influence marine bird foraging patterns and drive spatial segregation among adjacent colonies. We analysed movements of black-legged kittiwakes (Rissa tridactyla) in a glacial fjord by tracking breeding individuals from five colonies. Although breeding kittiwakes were observed to travel up to ca. 280 km from the colony, individuals were more likely to use glacier fronts located closer to their colony and rarely used glacier fronts located farther away than 18 km. Such variation in the use of glacier fronts created fine-scale spatial segregation among the four closest (ca. 7 km distance on average) kittiwake colonies. Overall, our results support the hypothesis that spatially predictable foraging patches like glacier fronts can have strong structuring effects on predator movements and can modulate the magnitude of intercolonial spatial segregation in central-place foragers. |
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Programme |
330 |
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ISSN |
2045-2322 |
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yes |
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Call Number |
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Serial |
8309 |
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Author |
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Title |
Surface ocean microbiota determine cloud precursors |
Type |
Journal |
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Year |
2021 |
Publication |
Scientific Reports |
Abbreviated Journal |
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Volume |
11 |
Issue |
1 |
Pages |
281 |
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Keywords |
Atmospheric science Marine biology |
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Abstract |
One pathway by which the oceans influence climate is via the emission of sea spray that may subsequently influence cloud properties. Sea spray emissions are known to be dependent on atmospheric and oceanic physicochemical parameters, but the potential role of ocean biology on sea spray fluxes remains poorly characterized. Here we show a consistent significant relationship between seawater nanophytoplankton cell abundances and sea-spray derived Cloud Condensation Nuclei (CCN) number fluxes, generated using water from three different oceanic regions. This sensitivity of CCN number fluxes to ocean biology is currently unaccounted for in climate models yet our measurements indicate that it influences fluxes by more than one order of magnitude over the range of phytoplankton investigated. |
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Programme |
1187 |
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ISSN |
2045-2322 |
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yes |
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Serial |
7264 |
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Title |
Marine snow morphology illuminates the evolution of phytoplankton blooms and determines their subsequent vertical export |
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Year |
2021 |
Publication |
Nature Communications |
Abbreviated Journal |
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Volume |
12 |
Issue |
1 |
Pages |
2816 |
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Keywords |
Carbon cycle Marine biology |
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Programme |
1164 |
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ISSN |
2041-1723 |
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yes |
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Call Number |
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Serial |
8250 |
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