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Marc Lebouvier, Philippe Lambret, Alexia Garnier, Peter Convey, Yves Frenot, Philippe Vernon, David Renault |
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Title |
Spotlight on the invasion of a carabid beetle on an oceanic island over a 105-year period |
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2020 |
Publication |
Scientific Reports |
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Volume |
10 |
Issue |
1 |
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17103 |
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136 |
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2045-2322 |
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yes |
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7977 |
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Title |
Nest attentiveness drives nest predation in arctic sandpipers |
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Year |
2020 |
Publication |
Oikos |
Abbreviated Journal |
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Volume |
129 |
Issue |
10 |
Pages |
1481-1492 |
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Keywords |
Arctic shorebirds breeding behaviour incubation recesses incubation strategy nest survival parental care |
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1036 |
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1600-0706 |
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yes |
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7986 |
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Title |
Exposure to PFAS is Associated with Telomere Length Dynamics and Demographic Responses of an Arctic Top Predator |
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Year |
2020 |
Publication |
Environmental Science & Technology |
Abbreviated Journal |
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Volume |
54 |
Issue |
16 |
Pages |
10217-10226 |
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330 |
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0013-936X |
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7989 |
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Wenjie Lei, Youyi Ruan, Ebru Bozda?, Daniel Peter, Matthieu Lefebvre, Dimitri Komatitsch, Jeroen Tromp, Judith Hill, Norbert Podhorszki, David Pugmire |
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2020 |
Publication |
Geophysical Journal International |
Abbreviated Journal |
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Volume |
223 |
Issue |
1 |
Pages |
1-21 |
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133 |
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ISSN |
0956-540X |
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yes |
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Serial |
7990 |
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Title |
Gravity Wave Excitation during the Coastal Transition of an Extreme Katabatic Flow in Antarctica |
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Journal |
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Year |
2020 |
Publication |
Journal of the Atmospheric Sciences |
Abbreviated Journal |
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Volume |
77 |
Issue |
4 |
Pages |
1295-1312 |
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0 |
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0022-4928, 1520-0469 |
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yes |
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Serial |
7996 |
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Title |
Contrasting biogeographical patterns in Margarella (Gastropoda: Calliostomatidae: Margarellinae) across the Antarctic Polar Front |
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Journal |
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Year |
2020 |
Publication |
Molecular Phylogenetics and Evolution |
Abbreviated Journal |
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Volume |
156 |
Issue |
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Pages |
107039 |
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Keywords |
Antarctic Polar Front Benthic-protected development Long-distance dispersal Rafting Southern Ocean |
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Programme |
1044 |
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ISSN |
1055-7903 |
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Approved |
yes |
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Call Number |
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Serial |
8001 |
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Author |
Angus F. Henderson, Clive R. McMahon, Rob Harcourt, Christophe Guinet, Baptiste Picard, Simon Wotherspoon, Mark A. Hindell |
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Title |
Inferring Variation in Southern Elephant Seal At-Sea Mortality by Modelling Tag Failure |
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Journal |
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Year |
2020 |
Publication |
Frontiers in Marine Science |
Abbreviated Journal |
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Volume |
7 |
Issue |
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Pages |
796 |
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Abstract |
Identifying factors influencing survivorship is key to understanding population persistence. Although satellite telemetry is a powerful tool for studying remote animal ecology and behaviour it is rarely used for demographic studies because distinguishing the death of the animal (individual mortality) from failure of the tag (mechanical tag failure) has proven difficult. Southern elephant seals present an opportunity to separate tag failure from animal mortality thanks to the availability of large tracking datasets, broad knowledge of demographic rates, and because for these large animals, satellite tags are known not to influence mortality rates. A key rationale for investigating satellite telemetry to estimate mortality as compared to using traditional Capture-Mark-Recapture methods is the potential for obtaining spatially and temporally specific information, particularly while the animals are at sea and largely unobservable. We used satellite tag data from 182 seals from Isles Kerguelen, deployed between 2004 and 2018. Of these, 76 (42%) tags transmitted for the full post-moult foraging trip (max. 265 days for females and max. 305 days for sub-adult males) with the remaining 107 tags (58%) ceasing transmission at sea. We found that contrary to expectations, behavioural choices seem not to influence tag failure rates by mechanical means, rather the signals we detected seemed to align with previously described variation in mortality between groups. There was evidence, albeit limited, for an increase in tag failure for adult females in years with negative Southern Annular Mode (lower Southern Ocean productivity). We speculate that this increase in failure may suggest higher mortality in these years. Also, males using the Kerguelen Plateau had higher tag failure rates than those in the sea-ice zone, perhaps indicative of higher mortality. We suspect that these differences in tag failure rates between groups reflect variation in predator exposure and foraging success. This suggests satellite telemetry could be used to infer mortality events for southern elephant seals while they are at sea. |
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ISSN |
2296-7745 |
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yes |
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Serial |
8007 |
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Author |
Pauline Goulet, Christophe Guinet, Claudio Campagna, Julieta Campagna, Peter Lloyd Tyack, Mark Johnson |
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Title |
Flash and grab: deep-diving southern elephant seals trigger anti-predator flashes in bioluminescent prey |
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Year |
2020 |
Publication |
Journal of Experimental Biology |
Abbreviated Journal |
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Volume |
223 |
Issue |
10 |
Pages |
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1201 |
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ISSN |
0022-0949 |
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yes |
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Serial |
8008 |
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Title |
Diving Behavior of Mirounga leonina: A Functional Data Analysis Approach |
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Year |
2020 |
Publication |
Frontiers in Marine Science |
Abbreviated Journal |
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Volume |
7 |
Issue |
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Pages |
595 |
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Abstract |
The diving behavior of southern elephant seals, Mirounga leonina, is investigated through the analysis of time-depth dive profiles. The originality of this work is to consider dive profiles as continuous curves. For this purpose, a Functional Data Analysis (FDA) approach is proposed for the shape analysis of a collection of dive profiles. Complexity of dive shapes is characterized by a mixture of three main shape variations accounting for about 80% of the entire variability: U or V shape, vertical depth variability during the bottom time, and skewed left or right. Model-based clustering allows the identification of eight dive shape clusters in a quick and automated way. Connection between shape patterns and classical descriptors, as well as the number of prey capture events, is achieved, showing that the clusters are coherent to specific foraging behaviors previously identified in the literature labeled as drift, exploratory and active dives. Finally, FDA is compared to classical methods relying on the computation of discrete dive descriptors. Results show that taking the shape of the dive as a whole is more resilient to corrupted or incomplete sampled data. FDA is, therefore, an efficient tool adapted for processing and comparing dive data with different sampling frequencies and for improving the quality and the accuracy of transmitted data. |
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1201 |
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2296-7745 |
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yes |
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8009 |
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Title |
Frozen graves of Yakutia, a chronological sequence |
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Year |
2020 |
Publication |
VESTNIK ARHEOLOGII, ANTROPOLOGII I ETNOGRAFII |
Abbreviated Journal |
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Volume |
4 |
Issue |
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Pages |
120-130 |
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Keywords |
artefacts Christianization chronology funeral practices modern period soil burial Yakutia Yakuts |
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Abstract |
Distribution, cultural and chronological attribution of frozen graves of Yakutia between the beginning of 17th and end of 19th century. The funerary rites and the artefacts allow to differentiate four chrono-cultural periods (before 1700 AD, from 1700 to 1750 AD, from 1750 to 1800 AD and after 1800 AD) which could be associated with historical events: opening of the trading post of Nertchinsk, expansion of the Kangalasky clan, economic collapse, generalization of Christianization. |
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1038 |
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yes |
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8012 |
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