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Title |
The Marine Vegetation of the Kerguelen Islands: History of Scientific Campaigns, Inventory of the Flora and First Analysis of Its Biogeographical Affinities |
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Journal |
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Year |
2021 |
Publication |
Cryptogamie, Algologie |
Abbreviated Journal |
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Volume |
42 |
Issue |
12 |
Pages |
173-216 |
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Programme  |
1044 |
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ISSN |
0181-1568, 1776-0984 |
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yes |
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8440 |
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Journal |
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Year |
2021 |
Publication |
Ecology |
Abbreviated Journal |
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Volume |
103 |
Issue |
3 |
Pages |
e3611 |
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Keywords |
Antarctica Asteroidea benthos biometric measurements Echinodermata elemental contents invertebrates marine ecosystems sea stars Southern Ocean stable isotopes subantarctic Islands |
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Programme |
1044 |
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1939-9170 |
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yes |
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8445 |
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Title |
The high diversity of Southern Ocean sea stars (Asteroidea) reveals original evolutionary pathways |
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Journal |
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Year |
2021 |
Publication |
Progress in oceanography |
Abbreviated Journal |
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Volume |
190 |
Issue |
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Pages |
102472 |
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Keywords |
Antarctica Biodiversity COI mtDNA Echinodermata Evolution Phylogeography |
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Abstract |
Benthic life in the Southern Ocean (SO) features unique life history traits and species assemblages, but the origin and evolution of many of these taxonomic groups is still unclear. Sea stars (Asteroidea) are a diversified and abundant component of benthic ecosystems in the SO, in which they can play key ecological roles. Former studies suggest that the diversity of the entire class is still poorly known and underestimated, hampering the assessment of the origin and evolution of the class in the SO. In the present study, we analyse spatial patterns of SO sea star diversity using an occurrence database of ~14,000 entries. The biogeographic analysis is coupled with the exploration of an extensive molecular phylogeny based on over 4,400 specimen sequences to inform, support and/or question the observed diversity patterns. We show that the current taxonomy of SO asteroids needs revision and that their diversity has generally been overlooked and misinterpreted. Molecular results highlight the recent diversification of most studied taxa, at genus and species levels, which supports an evolutionary scenario referring to successive invasion and exchange events between the SO and adjacent regions, and clade diversification during periods of rapid environmental changes driven by the succession of glacial cycles. Our work advocates for employing, and endorsing the use of extensive genetic barcode libraries for biodiversity studies. |
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1044,1124 |
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Bachelor's thesis |
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0079-6611 |
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yes |
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Serial |
8183 |
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Journal |
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Year |
2021 |
Publication |
Antarctic Science |
Abbreviated Journal |
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Volume |
33 |
Issue |
1 |
Pages |
103-115 |
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Keywords |
Antarctic Cold Reversal glacier fluctuations Holocene in situ cosmogenic chlorine-36 dating palaeoclimate sub-Antarctic |
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Abstract |
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Programme |
1048 |
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ISSN |
0954-1020, 1365-2079 |
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yes |
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Serial |
8186 |
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Title |
Evolution of the Cook Ice Cap (Kerguelen Islands) between the last centuries and 2100 ce based on cosmogenic dating and glacio-climatic modelling |
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Journal |
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Year |
2021 |
Publication |
Antarctic Science |
Abbreviated Journal |
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Volume |
33 |
Issue |
3 |
Pages |
301-317 |
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Keywords |
degree-day glaciological model future projections glacial fluctuations in situ cosmogenic chlorine-36 dating moraines sub-Antarctic islands |
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Abstract |
The Cook Ice Cap (CIC) on the sub-Antarctic Kerguelen Islands recently experienced extremely negative surface mass balance. Further deglaciation could have important impacts on endemic and invasive fauna and flora. To put this exceptional glacier evolution into a multi-centennial-scale context, we refined the evolution of the CIC over the last millennium, investigated the associated climate conditions and explored its potential evolution by 2100 ce. A glaciological model, constrained by cosmic ray exposure dating of moraines, historical documents and recent direct mass balance observations, was used to simulate the ice-cap extents during different phases of advance and retreat between the last millennium and 2100 ce. Cosmogenic dating suggests glacial advance around the early Little Ice Age (LIA), consistent with findings from other sub-Antarctic studies, and the rather cold and humid conditions brought about by the negative phase of the Southern Annular Mode (SAM). This study contributes to our currently limited understanding of palaeoclimate for the early LIA in the southern Indian Ocean. Glaciological modelling and observations confirm the recent decrease in CIC extent linked to the intensification of the SAM. Although affected by large uncertainties, future simulations suggest a complete disappearance of CIC by the end of the century. |
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1048 |
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0954-1020, 1365-2079 |
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yes |
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Serial |
8187 |
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Author |
Crouzet N. |
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Title |
Monitoring warm transiting exoplanets for Ariel with ASTEP+ |
Type |
Communication |
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Year |
2021 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Programme |
1066 |
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yes |
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Serial |
7826 |
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Author |
Guillot T. |
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Title |
Science of temperate exoplanets: The lessons from Juno |
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Book Chapter |
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Year |
2021 |
Publication |
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Abbreviated Journal |
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Programme |
1066 |
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Thesis |
Bachelor's thesis |
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yes |
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7827 |
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Title |
Precise Transit and Radial-velocity Characterization of a Resonant Pair: The Warm Jupiter TOI-216c and Eccentric Warm Neptune TOI-216b |
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Year |
2021 |
Publication |
The Astronomical Journal |
Abbreviated Journal |
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Volume |
161 |
Issue |
4 |
Pages |
161 |
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1066 |
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1538-3881 |
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yes |
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Serial |
8194 |
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Title |
The ? Pictoris b Hill sphere transit campaign – I. Photometric limits to dust and rings |
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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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1066 |
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0004-6361, 1432-0746 |
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yes |
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8195 |
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Title |
TOI-1231 b: A Temperate, Neptune-sized Planet Transiting the Nearby M3 Dwarf NLTT 24399 |
Type |
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Year |
2021 |
Publication |
The Astronomical Journal |
Abbreviated Journal |
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Volume |
162 |
Issue |
3 |
Pages |
87 |
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1066 |
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ISSN |
1538-3881 |
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yes |
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Call Number |
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Serial |
8196 |
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