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Yan Axel Gomez Coutouly |
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Un peuplement antérieur à 20 000 ans en Amérique ? |
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Book Chapter |
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2021 |
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« Et pourtant elle tourne ! » blocages épistémologiques en archéologie. Colloque organisé par Laure Fontana et Sophie A. de Beaune, (Projets collectifs ArScAn), 18-19 novembre 2021, Campus de Nanterre Université, France |
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1217 |
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8692 |
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Pazmino, A., S. Godin-beekmann, A. Hauchecorne, C. Claud, F. Lefèvre, S. Khaykin, F. Goutail, J. P. Pommereau, C. Boonne, E. Wolfram, J. Salvador, E. Quel, |
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Evaluation of total ozone recovery inside the Antarctic vortex, |
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Non peer-reviewed symposium |
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2016 |
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quad. ozone symposium |
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209 |
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6785 |
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Legovini, Paride |
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Title |
Ambient seismic noise tomography of the Antarctic continent |
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2019 |
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[dissertation thesis], alma mater studiorum università di Bologna. dottorato di ricerca in geofisica |
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The lithosphere of Antarctica reacts to both the stress variations due to the dynamics of the mantle and the variation of the glacial load due to changes in climate. These two factors act on the dynamics of the glacial mass, on the evolution of the continent's topography and on the plate seismicity. This means that the knowledge of spatial variations in lithospheric thickness is needed to comprehend of the processes that involve interactions between climate and the geosphere. The main aim of this work is to produce a tomographic model of the continent. The classic data source for tomographic studies is a set of seismic signals produced by earthquakes. In this work I use a different technique: information is extracted by correlating the ambient seismic noise recorded in different locations. Instead of a the classic cross-correlation, this work uses the phase cross correlation technique, which appears to be more robust in our use case. Signal phases are used even to improve the correlogram stacks, by weighting the stack samples according to the correlograms' coherence. In Antarctica, the 30s Rayleigh wave group velocity map shows lower velocities in East Antarctica, and higher velocities in West Antarctica, coherently with expectations related to a thicker cratonic crust in the East, and thinner extending crust in the West. Deeper sensitivity of longer periods make the color pattern switch for the 80s map, sensing the upper mantle and consequently higher velocity at the cold roots of cratonic East Antarctica and lower velocity in the tectonically active West. I also contributed to the maintenance and development of the seismic observational infrastructure in Antarctica. This thesis recaps the activities I carried out during my participation to the 31st campaign of the Italian National Antarctic Research Program, to which I participated during the PhD course. |
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Bachelor's thesis |
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7283 |
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Craig D.A., Currie D.C. & Vernon P. |
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Crozetia Davies (Diptera: Simuliidae): redescription of Cr. crozetensis, Cr. seguyi, number of larval instars, phylogenetic relationships and historical biogeography. |
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2003 |
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Zootaxa |
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Zootaxa |
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259 |
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1-39 |
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136 |
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1175-5326 |
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2230 |
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Monniot F., Dettai A., Eleaume M., Cruaud C. & Ameziane N. |
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Antarctic ascidians (Tunicata) of the French-Australian survey CEAMARC in Terre Adélie. |
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2011 |
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ZOOTAXA |
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Zootaxa |
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2817 |
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1-54 |
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1124 |
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1175-5326 |
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yes |
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4631 |
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Author |
Monniot F. |
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Pelonaia quadrivena n. sp. a case of bipolarity in Ascidiacea. |
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2011 |
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ZOOTAXA |
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Zootaxa |
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2833 |
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41-48 |
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1124 |
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1175-5326 |
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4630 |
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Monniot Françoise, |
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The genus Corella (Ascidiacea, Phlebobranchia, Corellidae) in the Southern Hemisphere with description of a new species
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2013 |
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ZOOTAXA |
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Zootaxa |
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3702 |
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2 |
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135-149 |
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Antarctic, Ascidians, Corellidae, new species, sub-Antarctic, |
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In the Southern Hemisphere the species attributed to Corella eumyota , Traustedt, 1882 are likely more varied than previously expected. This ascidian species was described from specimens collected at Valparaiso (Chile). Until now it was considered as a widely distributed species in the southern hemisphere. New collections from Chile and the Antarctic area have allowed to separate two species and re-establish Corella antarctica Sluiter, 1905 as a valid species (Alurralde 2013).A morphological re-examination of many specimens from the MNHN collections and especially recent surveys as CEAMARC and REVOLTA confirms that Antarctic specimens from the Antarctic Peninsula and Terre Adélie obviously differ from sub-Antarctic material more varied than previously estimated. On the other hand, C. eumyota invasive in Europe (Lambert 2004) has been shown to be the same as specimens from Chile, New Zealand and other sub-Antarctic regions. The present morphological study compares Corella from different regions and describes a new species Corella brewinae n. sp that is found living mixed with C. eumyota populations. |
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1124 |
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1175-5334 |
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4528 |
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Vicente C. and Monniot F |
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The ascidian-associated mysid Corellamysis eltanina gen.nov., sp.nov. (Mysida, Mysidae, Heteromysinae): a new symbiotic relationship from the Southern Ocean |
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2014 |
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ZOOTAXA |
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Zootaxa |
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3780 |
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2 |
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323-346. |
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A new mysid species representing a new genus is described based on specimens collected in the 1968 cruise of the U.S. Navy Ship Eltanin from the Macquarie Island region (Southern Ocean). The new mysid, Corellamysis eltanina, is characterized by the globular eyes lacking definite eyestalks, the seven and eighth thoracic endopods specialized as gnathopods forming a strong subchela, and by the armature and shape of the uropod endopod and telson. Corellamysis eltanina lives only in the branchial sacs of the ascidian Corella brewinae suggesting an obligate endocommensal symbiotic association. Therefore, this is the first known report of a mysid living symbiotically with a benthic tunicate, as well as the first report of a mysid symbiosis from the Southern Ocean. The distribution and habitats of known symbiont mysids are reviewed. An update of identification key to world genera and subgenera of Heteromysinae is suggested. |
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1175-5326 |
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5271 |
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Smet Willem H De, |
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Description of Pseudingolfiella possessionis n. sp. (Crustacea, Amphipoda) from sub-Antarctic Île de La Possession, Crozet archipelago: the second freshwater amphipod known from the Antarctic biome, a human introduction of Gondwanan ancestry?
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2015 |
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Zootaxa |
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3941 |
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2 |
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221-38 |
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Antarctica, Pseudingolfiella, biogeography, chorology, diversity, |
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A new species of freshwater amphipod, Pseudingolfiella possessionis n. sp. (Senticaudata, Pseudingolfiellidae), is described from the submerged moss vegetation of small brooklets at sub-Antarctic Île de La Possession, Crozet archipelago. It constitutes the second freshwater amphipod species known for the sub-Antarctic and Antarctic region, and the fourth member of the genus. The main characters distinguishing it from all congeners are: the spine on the posterior margin of the dactylus, incisor and lamina mobilis of mandible each with 5 teeth, the setation of the maxilliped, the vestigial second article of pleopod 3 in the female, the undulate and laterally notched posterolateral margin of the external ramus of uropods 1 and 2 in the male, the spinulate dorsomedian projection of the telson.
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136 |
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Bachelor's thesis |
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1175-5326 |
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6130 |
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Tshoanelo Miya, Ofer Gon, Monica Mwale, Elie Poulin |
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Molecular systematics and taxonomic status of three latitudinally widespread nototheniid (Perciformes: Notothenioidei) fishes from the Southern Ocean |
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2016 |
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Zootaxa |
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4061 |
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4 |
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381-396 |
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Atlantic Ocean sector Gobionotothen Indian Ocean sector Lepidonotothen mitochondrial DNA nuclear gene Pisces sequence divergence |
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The taxonomic status of the three nototheniids, Lepidonotothen squamifrons, L. larseni and Gobionotothen marionensis from different localities in the Southern Ocean is re-evaluated at the DNA level. DNA sequence divergences and phylogenetic relationship were estimated using a combined mitochondrial (mtDNA, ND2 and COI) dataset and data for one nuclear gene (S7 intron 1). Phylogenies of both datasets had Lepidonotothen kempi nested within L. squamifrons lineage, with low sequence divergences (0% to 0.4%) between the two nominal species suggesting that they are populations of one species. Therefore, these results do not support the previous splitting of L. squamifrons into different species. Similarly, the L. larseni specimens also represented a single genetic unit (0.3% to 0.6%) with low geographic variation between Atlantic and Indian Ocean specimens, which does not support the splitting of this species into geographically restricted species. The mtDNA phylogeny clearly separated individuals of G. acuta from Kerguelen, Heard and MacDonald Islands from G. marionensis individuals into different clades, with sequence divergence of 2.9% between these clades supporting they are different species. |
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1175-5334 |
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1175-5334 |
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6701 |
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