| Records |
| Author |
Emilie Portier, Denis Mercier, Armelle Decaulne, Etienne Cossart |
| Title |
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Type |
Journal |
Year  |
2024 |
Publication |
Geomorphology |
Abbreviated Journal |
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| Volume |
457 |
Issue |
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Pages |
109230 |
| Keywords |
Deglaciation Holocene Landslide Rock-slope failures Schmidt-hammer exposure-age dating |
| Abstract |
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| Programme |
1266 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0169-555X |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
8759 |
| Permanent link to this record |
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| Author |
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| Title |
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Type |
Journal |
| Year |
2024 |
Publication |
Oecologia |
Abbreviated Journal |
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| Volume |
204 |
Issue |
3 |
Pages |
675-688 |
| Keywords |
Antarctica Breeding habitat quality Human disturbance Population dynamics Population monitoring Pygoscelis adeliae |
| Abstract |
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| Programme |
1091 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
1432-1939 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
8763 |
| Permanent link to this record |
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| Author |
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| Title |
Spatial distribution of selenium-mercury in Arctic seabirds |
Type |
Journal |
| Year |
2024 |
Publication |
Environmental Pollution |
Abbreviated Journal |
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| Volume |
343 |
Issue |
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Pages |
123110 |
| Keywords |
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| Abstract |
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| Programme |
388 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0269-7491 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
8767 |
| Permanent link to this record |
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| Author |
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| Title |
Cold adaptation does not handicap warm tolerance in the most abundant Arctic seabird |
Type |
Journal |
| Year |
2024 |
Publication |
Proceedings of the Royal Society B: Biological Sciences |
Abbreviated Journal |
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| Volume |
291 |
Issue |
2015 |
Pages |
20231887 |
| Keywords |
Animal energetics dovekie ecophysiology evolutionary legacy global warming phylogenic analyses |
| Abstract |
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| Programme |
388 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
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Editor |
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Original Title |
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Series Title |
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Series Issue |
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Edition |
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ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
8776 |
| Permanent link to this record |
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| Author |
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| Title |
Tick-borne zoonotic flaviviruses and Borrelia infections in wildlife hosts: What have field studies contributed? |
Type |
Journal |
| Year |
2024 |
Publication |
One Health |
Abbreviated Journal |
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| Volume |
18 |
Issue |
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Pages |
100747 |
| Keywords |
Flavivirus Host Reservoir Sentinel Tick-borne diseases Wildlife |
| Abstract |
Tick-borne flaviviruses and Borrelia spp. are globally spread pathogens of zoonotic potential that are maintained by a transmission cycle at the interface between ticks and vertebrate hosts, mainly wild animals. Aside data on pathogen burden in ticks, information on the status of various hosts relative to infection is important to acquire. We reviewed how those infections have been studied in wildlife host species in the field to discuss how collected data provided relevant epidemiological information and to identify needs for further studies. The literature was screened for observational studies on pathogen or antibody detection for tick-borne Borrelia spp. and flaviviruses in wildlife host animals. Overall, Borrelia spp. were more studied (73% of case studies, representing 297 host species) than flaviviruses (27% of case studies, representing 114 host species). Studies on both Borrelia spp. and flaviviruses focused mainly on the same species, namely bank vole and yellow-necked mouse. Most studies were order-specific and cross-sectional, reporting prevalence at various locations, but with little insight into the underlying epidemiological dynamics. Host species with potential to act as reservoir hosts of these pathogens were neglected, notably birds. We highlight the necessity of collecting both demographics and infection data in wildlife studies, and to consider communities of species, to better estimate zoonotic risk potential in the One Health context. |
| Programme |
1151 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
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Editor |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
2352-7714 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
8779 |
| Permanent link to this record |
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| Author |
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| Title |
Supercooled liquid water clouds observed over Dome C, Antarctica: temperature sensitivity and cloud radiative forcing |
Type |
Journal |
| Year |
2024 |
Publication |
Atmospheric Chemistry and Physics |
Abbreviated Journal |
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| Volume |
24 |
Issue |
1 |
Pages |
613-630 |
| Keywords |
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| Abstract |
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| Programme |
910 |
| Campaign |
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| Address |
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Thesis |
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| Publisher |
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Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
1680-7316 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
8780 |
| Permanent link to this record |
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| |
| Author |
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| Title |
Microbiota composition and diversity of multiple body sites vary according to reproductive performance in a seabird |
Type |
Journal |
| Year |
2023 |
Publication |
Molecular Ecology |
Abbreviated Journal |
|
| Volume |
32 |
Issue |
9 |
Pages |
2115-2133 |
| Keywords |
bacteria black-legged kittiwake feathers fitness individual quality microbiota reproductive success |
| Abstract |
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| Programme |
1162 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
1365-294X |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
8391 |
| Permanent link to this record |
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| Author |
Sophia Ferchiou, France Caza, Richard Villemur, Jacques Labonne, Yves St-Pierre |
| Title |
Skin and Blood Microbial Signatures of Sedentary and Migratory Trout (Salmo trutta) of the Kerguelen Islands |
Type |
Journal |
| Year |
2023 |
Publication |
Fishes |
Abbreviated Journal |
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| Volume |
8 |
Issue |
4 |
Pages |
174 |
| Keywords |
Salmo trutta 16S rRNA blood microbiome fish Kerguelen Islands migration skin microbiome |
| Abstract |
Our understanding of how microbiome signatures are modulated in wild fish populations remains poorly developed and has, until now, mostly been inferred from studies in commercial and farmed fish populations. Here, for the first time, we have studied changes in the skin and blood microbiomes of the Salmo trutta population of the volcanic Kerguelen archipelago located at the northern limit of the Antarctic Ocean. The Kerguelen Islands present a natural framework of population expansion and reveal a likely situation representing further climate change in distribution areas. Our results showed that S. trutta of the Kerguelen Islands has a microbiome signature distinct from those of salmonids of the Northern Hemisphere. Our study also revealed that the skin and blood microbiomes differ between sedentary and migratory S. trutta. While 18 phyla were shared between both groups of trout, independent of the compartment, 6 phyla were unique to migratory trout. Further analyses showed that microbiome signatures undergo significant site-specific variations that correlate, in some cases, with the peculiarity of specific ecosystems. Our study also revealed the presence of potential pathogens at particular sites and the impact of abiotic factors on the microbiome, most notably due to the volcanic nature of the environment. This study contributes to a better understanding of the factors that modulate the microbiome signatures of migratory and sedentary fish populations. It will also help to better monitor the impacts of climate change on the colonization process in the sub-Antarctic region. |
| Programme |
1041 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
2410-3888 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
8404 |
| Permanent link to this record |
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| |
| Author |
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| Title |
The relativistic solar particle event on 28 October 2021: Evidence of particle acceleration within and escape from the solar corona |
Type |
Journal |
| Year |
2023 |
Publication |
Astronomy & Astrophysics |
Abbreviated Journal |
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| Volume |
663 |
Issue |
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Pages |
A173 |
| Keywords |
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| Abstract |
Aims. We analyse particle, radio, and X-ray observations during the first relativistic proton event of solar cycle 25 detected on Earth. The aim is to gain insight into the relationship between relativistic solar particles detected in space and the processes of acceleration and propagation in solar eruptive events.Methods. To this end, we used ground-based neutron monitor measurements of relativistic nucleons and space-borne measurements of electrons with similar speed to determine the arrival times of the first particles at 1 AU and to infer their solar release times. We compared the release times with the time histories of non-thermal electrons in the solar atmosphere and their escape to interplanetary space, as traced by radio spectra and X-ray light curves and images.Results. Non-thermal electrons in the corona are found to be accelerated in different regions. Some are confined in closed magnetic structures expanding during the course of the event. Three episodes of electron escape to the interplanetary space are revealed by groups of decametric-to-kilometric type III bursts. The first group appears on the low-frequency side of a type II burst produced by a coronal shock wave. The two latter groups are accompanied at higher frequencies by bursts with rapid drifts to both lower and higher frequencies (forward- or reverse-drifting bursts). They are produced by electron beams that propagate both sunward and anti-sunward. The first relativistic electrons and nucleons observed near Earth are released with the third group of type III bursts, more than ten minutes after the first signatures of non-thermal electrons and of the formation of the shock wave in the corona. Although the eruptive active region is near the central meridian, several tens of degrees east of the footpoint of the nominal Parker spiral to the Earth, the kilometric spectrum of the type III bursts and the in situ detection of Langmuir waves demonstrate a direct magnetic connection between the L1 Lagrange point and the field lines onto which the electron beams are released at the Sun.Conclusions. We interpret the forward- and reverse-drifting radio bursts as evidence of reconnection between the closed expanding magnetic structures of an erupting flux rope and ambient open magnetic field lines. We discuss the origin of relativistic particles near the Earth across two scenarios: (1) acceleration at the CME-driven shock as it intercepts interplanetary magnetic field lines rooted in the western solar hemisphere and (2) an alternative where the relativistic particles are initially confined in the erupting magnetic fields and get access to the open field lines to the Earth through these reconnection events. |
| Programme |
227 |
| Campaign |
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Thesis |
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Place of Publication |
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Editor |
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Summary Language |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0004-6361, 1432-0746 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
8441 |
| Permanent link to this record |
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| Author |
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| Title |
14 years of lidar measurements of polar stratospheric clouds at the French Antarctic station Dumont d'Urville |
Type |
Journal |
| Year |
2023 |
Publication |
Atmospheric chemistry and physics |
Abbreviated Journal |
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| Volume |
23 |
Issue |
1 |
Pages |
431-451 |
| Keywords |
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| Abstract |
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| Programme |
209 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
1680-7316 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
8491 |
| Permanent link to this record |
