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Title |
Circulation in Drake Passage revisited using new current time series and satellite altimetry: 1. The Yaghan Basin
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Type |
Journal Article |
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Year |
2012 |
Publication |
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS |
Abbreviated Journal |
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Volume |
117 |
Issue |
C12 |
Pages |
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Keywords |
4512 Currents, 4515 Deep recirculations, 4520 Eddies and mesoscale processes, 4528 Fronts and jets, 4532 General circulation, Antarctic circumpolar current, current meter mooring, Drake Passage, eddies, meanders, Yaghan Basin, |
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Abstract |
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Programme |
1061 |
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Thesis |
Bachelor's thesis |
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Edition |
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ISSN |
2156-2202 |
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yes |
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Call Number |
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Serial |
4283 |
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Author |
Gallon S, Bailleul F, Charrassin J -B, Guinet C, Bost C -A, Handrich Y, Hindell M, |
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Title |
Identifying foraging events in deep diving southern elephant seals, Mirounga leonina, using acceleration data loggers
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Type |
Journal Article |
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Year |
2013 |
Publication |
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY |
Abbreviated Journal |
0967-0645 |
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Volume |
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Issue |
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Pages |
14-22 |
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Keywords |
Accelerometers, Diving behaviour, Kerguelen island, Marine ecology, Mirounga leonina, Predator prey interactions, |
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Abstract |
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Programme |
109;394 |
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Thesis |
Bachelor's thesis |
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ISSN |
0967-0645 |
ISBN |
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Approved |
yes |
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Call Number |
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Serial |
4284 |
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Type |
Journal Article |
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Year |
2012 |
Publication |
MARINE BIOLOGY |
Abbreviated Journal |
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Volume |
159 |
Issue |
8 |
Pages |
1843-1852 |
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Keywords |
Freshwater & Marine Ecology, Marine & Freshwater Sciences, Microbiology, Oceanography, Zoology, |
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Abstract |
Knowledge of habitat use by top marine predators in response to environmental conditions is crucial in the current context of global changes occurring in the Southern Ocean. We examined the at-sea locations of male Ad,lie penguins (Pygoscelis adeliae) breeding at Dumont d'Urville during their first, long incubation trip. Compared with the chick-rearing period, penguins performed longer trips, going to oceanic waters as far as 320 km from the colony. We observed 3 strategies: (1) five individuals covered large distances to the north, targeting open-ocean areas and following the currents of two persistent eddies; (2) five individuals foraged to the north-west, close to the Antarctic shelf slope at the limit of the pack ice; and (3) three individuals covered much shorter distances (northwards or eastwards). The foraging range also seemed to be limited by the body condition of the penguins before their departure to sea. |
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Programme |
1091 |
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Thesis |
Bachelor's thesis |
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ISSN |
0025-3162 |
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Approved |
yes |
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Serial |
4285 |
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Title |
Is the Species Flock Concept Operational? The Antarctic Shelf Case
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Type |
Journal Article |
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Year |
2013 |
Publication |
PLOS ONE |
Abbreviated Journal |
1932-6203 |
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Volume |
8 |
Issue |
8 |
Pages |
e68787 |
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Abstract |
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Programme |
1044;1124 |
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Thesis |
Bachelor's thesis |
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ISSN |
1932-6203 |
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Approved |
yes |
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Call Number |
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Serial |
4307 |
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Title |
Antarctic, Sub-Antarctic and cold temperate echinoid database
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Journal Article |
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Year |
2012 |
Publication |
ZOOKEYS |
Abbreviated Journal |
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Volume |
204 |
Issue |
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Pages |
47-52 |
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Keywords |
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Abstract |
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Programme |
1124 |
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Thesis |
Bachelor's thesis |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1313-2970 |
ISBN |
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Expedition |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
4287 |
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Author |
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Title |
Correlative and dynamic species distribution modelling for ecological predictions in the Antarctic: a cross-disciplinary concept
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Type |
Journal Article |
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Year |
2012 |
Publication |
POLAR RESEARCH |
Abbreviated Journal |
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Volume |
31 |
Issue |
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Pages |
110091 |
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Keywords |
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Abstract |
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Programme |
1124 |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Edition |
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ISSN |
0800-0395 |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
4290 |
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Author |
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Title |
Full-depth desalination of warm sea ice: FULL-DEPTH DESALINATION OF SEA ICE
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Type |
Journal Article |
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Year |
2013 |
Publication |
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS |
Abbreviated Journal |
0148-0227 |
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Volume |
118 |
Issue |
1 |
Pages |
435-447 |
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Abstract |
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Programme |
1015 |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Series Issue |
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Edition |
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ISSN |
2169-9275 |
ISBN |
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Approved |
yes |
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Call Number |
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Serial |
4292 |
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Author |
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Title |
Major histocompatibility complex class II compatibility, but not class I, predicts mate choice in a bird with highly developed olfaction
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Type |
Journal Article |
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Year |
2012 |
Publication |
ROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES |
Abbreviated Journal |
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Volume |
279 |
Issue |
1746 |
Pages |
4457-4463 |
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Keywords |
454-pyrosequencing, genetic compatibility, major histocompatibility complex, MHC class I, MHC class II B, |
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Abstract |
Mate choice for major histocompatibility complex (MHC) compatibility has been found in several taxa, although rarely in birds. MHC is a crucial component in adaptive immunity and by choosing an MHC-dissimilar partner, heterozygosity and potentially broad pathogen resistance is maximized in the offspring. The MHC genotype influences odour cues and preferences in mammals and fish and hence olfactory-based mate choice can occur. We tested whether blue petrels, Halobaena caerulea, choose partners based on MHC compatibility. This bird is long-lived, monogamous and can discriminate between individual odours using olfaction, which makes it exceptionally well suited for this analysis. We screened MHC class I and II B alleles in blue petrels using 454-pyrosequencing and quantified the phylogenetic, functional and allele-sharing similarity between individuals. Partners were functionally more dissimilar at the MHC class II B loci than expected from random mating (p = 0.033), whereas there was no such difference at the MHC class I loci. Phylogenetic and non-sequence-based MHC allele-sharing measures detected no MHC dissimilarity between partners for either MHC class I or II B. Our study provides evidence of mate choice for MHC compatibility in a bird with a high dependency on odour cues, suggesting that MHC odour-mediated mate choice occurs in birds. |
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Programme |
354 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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ISSN |
0962-8452 |
ISBN |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
4300 |
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Author |
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Title |
Circumpolar dataset of sequenced specimens of Promachocrinus kerguelensis (Echinodermata, Crinoidea)
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Type |
Journal Article |
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Year |
2013 |
Publication |
ZOOKEYS |
Abbreviated Journal |
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Volume |
315 |
Issue |
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Pages |
55-64 |
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Keywords |
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Abstract |
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Programme |
1044;1124 |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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ISSN |
1313-2970 |
ISBN |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
4303 |
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Author |
Hardouin Emilie A, Tautz Diethard, |
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Title |
Increased mitochondrial mutation frequency after an island colonization: positive selection or accumulation of slightly deleterious mutations?
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Type |
Journal Article |
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Year |
2013 |
Publication |
BIOLOGY LETTERS |
Abbreviated Journal |
Biol. Lett. |
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Volume |
9 |
Issue |
2 |
Pages |
20121123 |
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Keywords |
inbred lines, island colonization, mitochondria, Mus musculus domesticus, |
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Abstract |
Island colonizations are excellent models for studying early processes of evolution. We found in a previous study on mice that had colonized the sub-Antarctic Kerguelen Archipelago about 200 years ago that they were derived from a single founder lineage and that this showed an unexpectedly large number of new mutations in the mitochondrial D-loop. To assess whether positive selection has played a role in the emergence of these variants, we have obtained 16 full mitochondrial genome sequences from these mice. For comparison, we have compiled 57 mitochondrial genome sequences from laboratory inbred lines that became established about 100 years ago, also starting from a single founder lineage. We find that the island mice and the laboratory lines show very similar mutation frequencies and patterns. None of the patterns in the Kerguelen mice provides evidence for positive selection. We conclude that nearly neutral evolutionary processes that assume the presence of slightly deleterious variants can fully explain the patterns. This supports the notion of time-dependency of molecular evolution and provides a new calibration point. Based on the observed mutation frequency, we calculate an average evolutionary rate of 0.23 substitutions per site per Myr for the earliest time frame of divergence, which is about six times higher than the long-term rate of 0.037 substitutions per site per Myr. |
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Programme |
136 |
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Thesis |
Bachelor's thesis |
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ISSN |
1744-9561 |
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Approved |
yes |
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Call Number |
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Serial |
4304 |
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