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Title |
Detecting population structure using STRUCTURE software : effect of background linkage disequilibrium. |
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Journal Article |
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Year |
2007 |
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Abbreviated Journal |
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Volume |
99 |
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374-380 |
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136 |
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0018-067X |
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yes |
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5233 |
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Author |
Homberg, C.; Bergerat, F.; Angelier, J.; Garcia, S. |
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Title |
Fault interaction and stresses along broad oceanic transform zone: Tjrnes Fracture Zone, north Iceland |
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Journal Article |
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Year |
2010 |
Publication |
Tectonics |
Abbreviated Journal |
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Volume |
29 |
Issue |
1 |
Pages |
TC1002 |
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Keywords |
oceanic transform; fault interaction; stresses; Iceland; slip transfer; 8150 Tectonophysics: Plate boundary: general; 8164 Tectonophysics: Stresses: crust and lithosphere; 8020 Structural Geology: Mechanics, theory, and modeling |
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Abstract |
Transform motion along oceanic transforms generally occurs along narrow faults zones. Another class of oceanic transforms exists where the plate boundary is quite large (?100 km) and includes several subparallel faults. Using a 2-D numerical modeling, we simulate the slip distribution and the crustal stress field geometry within such broad oceanic transforms (BOTs). We examine the possible configurations and evolution of such BOTs, where the plate boundary includes one, two, or three faults. Our experiments show that at any time during the development of the plate boundary, the plate motion is not distributed along each of the plate boundary faults but mainly occurs along a single master fault. The finite width of a BOT results from slip transfer through time with locking of early faults, not from a permanent distribution of deformation over a wide area. Because of fault interaction, the stress field geometry within the BOTs is more complex than that along classical oceanic transforms and includes stress deflections close to but also away from the major faults. Application of this modeling to the 100 km wide Tjrnes Fracture Zone (TFZ) in North Iceland, a major BOT of the Mid-Atlantic Ridge that includes three main faults, suggests that the Dalvik Fault and the Husavik-Flatey Fault developed first, the Grismsey Fault being the latest active structure. Since initiation of the TFZ, the Husavik-Flatey Fault accommodated most of the plate motion and probably persists until now as the main plate structure. |
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316 |
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AGU |
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0278-7407 |
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yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
6062 |
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Author |
Cressiot C. |
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Report |
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2006 |
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Abstract |
Training period report (advisor: Michel Piat) |
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915 |
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yes |
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3767 |
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Title |
Adverse foraging conditions may impact body mass and survival of a high Arctic seabird
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Type |
Journal Article |
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Year |
2011 |
Publication |
Oecologia |
Abbreviated Journal |
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Volume |
167 |
Issue |
1 |
Pages |
49-59 |
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Keywords |
Biomedical and Life Sciences, |
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Abstract |
Tradeoffs between current reproduction and future survival are widely recognized, but may only occur when food is limited: when foraging conditions are favorable, parents may be able to reproduce without compromising their own survival. We investigated these tradeoffs in the little auk ( Alle alle ), a small seabird with a single-egg clutch. During 20052007, we examined the relationship between body mass and survival of birds breeding under contrasting foraging conditions at two Arctic colonies. We used corticosterone levels of breeding adults as a physiological indicator of the foraging conditions they encountered during each reproductive season. We found that when foraging conditions were relatively poor (as reflected in elevated levels of corticosterone), parents ended the reproductive season with low body mass and suffered increased post-breeding mortality. A positive relationship between body mass and post-breeding survival was found in one study year; light birds incurred higher survival costs than heavy birds. The results of this study suggest that reproducing under poor foraging conditions may affect the post-breeding survival of long-lived little auks. They also have important demographic implications because even a small change in adult survival may have a large effect on populations of long-lived species. |
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388 |
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Bachelor's thesis |
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Springer Berlin / Heidelberg |
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0029-8549 |
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yes |
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Call Number |
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Serial |
3509 |
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Title |
Year-round distribution of Northeast Atlantic seabird populations: applications for population management and marine spatial planning |
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Journal |
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Year |
2021 |
Publication |
Marine Ecology Progress Series |
Abbreviated Journal |
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Volume |
676 |
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Pages |
255-276 |
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Keywords |
Alle alle Fratercula arctica Fulmarus glacialis Marine spatial planning Rissa tridactyla SEATRACK Uria aalge Uria lomvia |
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Abstract |
Tracking data of marine predators are increasingly used in marine spatial management. We developed a spatial data set with estimates of the monthly distribution of 6 pelagic seabird species breeding in the Northeast Atlantic. The data set was based on year-round global location sensor (GLS) tracking data of 2356 adult seabirds from 2006-2019 from a network of seabird colonies, data describing the physical environment and data on seabird population sizes. Tracking and environmental data were combined in monthly species distribution models (SDMs). Cross-validations were used to assess the transferability of models between years and breeding locations. The analyses showed that birds from colonies close to each other (<500 km apart) used the same nonbreeding habitats, while birds from distant colonies (>1000 km) used colony-specific and, in many cases, non-overlapping habitats. Based on these results, the SDM from the nearest model colony was used to predict the distribution of all seabird colonies lying within a species-specific cut-off distance (400-500 km). Uncertainties in the predictions were estimated by cluster bootstrap sampling. The resulting data set consisted of 4692 map layers, each layer predicting the densities of birds from a given species, colony and month across the North Atlantic. This data set represents the annual distribution of 23.5 million adult pelagic seabirds, or 87% of the Northeast Atlantic breeding population of the study species. We show how the data set can be used in population and spatial management applications, including the detection of population-specific nonbreeding habitats and identifying populations influenced by marine protected areas. |
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330 |
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0171-8630, 1616-1599 |
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yes |
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Call Number |
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Serial |
8425 |
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Author |
Rousseau, D.-D.; Duzer, D.; Etienne, J.-L.; Cambon, G.; Jolly, D.; Ferrier, J.; Schevin, P. |
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Title |
Pollen record of rapidly changing air trajectories to the North Pole |
Type |
Journal Article |
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Year |
2004 |
Publication |
Journal of geophysical research-atmospheres |
Abbreviated Journal |
J. Geophys. Res. |
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Volume |
109 |
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Pages |
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Keywords |
0305 Atmospheric Composition and Structure: Aerosols and particles; 0315 Atmospheric Composition and Structure: Biosphere/atmosphere interactions; 1620 Global Change: Climate dynamics; 3322 Meteorology and Atmospheric Dynamics: Land/atmosphere interactions |
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Abstract |
Tracing modern atmospheric dynamics is important for constraining models used in past climate reconstruction. However, these models must be verified by modern observations. We present the rapid changeover of two different air trajectories to the North Pole determined by studying the long distance transport of pollen. Samples were collected on a manned floating capsule drifting southward on the sea ice from the North Pole in 2002. It was observed that an air mass at 3000 m altitude transported birch and pine pollen released in Western Europe during week 22 (May 27). Two weeks later, during week 24 (June 10), alder, birch and willow pollen from eastern Siberia reached the drifting station with an air mass at 1000 m altitude. These particular patterns support independent investigations of air trajectories in the Arctic, especially the transport of anthropogenic pollutants such as sulfate and nitrate. |
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349 |
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American Geophysical Union |
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ISSN |
0148-0227 |
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yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5621 |
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Author |
F. Thibon, L. Weppe, N. Vigier, C. Churlaud, T. Lacoue-Labarthe, M. Metian, Y. Cherel, P. Bustamante |
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Title |
Large-scale survey of lithium concentrations in marine organisms |
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Journal |
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Year |
2021 |
Publication |
Science of The Total Environment |
Abbreviated Journal |
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Volume |
751 |
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Pages |
141453 |
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Keywords |
Bio-reduction Bioaccumulation Biogeography Ecotoxicology Multiple correspondence analyses Trophic webs |
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109 |
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0048-9697 |
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yes |
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7944 |
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Author |
Corbel H., Geiger S. & Groscolas R. |
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Title |
State-dependent decisions in the fledging process of king penguin chicks |
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Conference - International - Communication |
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Year |
2008 |
Publication |
4th Annual Meeting in Ecology and Behaviour |
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Toulouse, April 14-17, 2008. |
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119 |
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yes |
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5002 |
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Title |
Early unusual ozone loss during the Arctic winter 2002/03 compared to other winters |
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Journal Article |
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Year |
2004 |
Publication |
Atmospheric chemistry and physics |
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Volume |
4 |
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904 |
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1680-7316 |
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yes |
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3229 |
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Author |
Samuel Veilleux, Najat Bhiry, Armelle Decaulne |
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Journal |
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Year |
2020 |
Publication |
Geomorphology |
Abbreviated Journal |
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Volume |
349 |
Issue |
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Pages |
106911 |
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Keywords |
Morphometry Nunavik Periglacial Slope dynamics Snow avalanches |
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1148 |
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0169-555X |
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yes |
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8261 |
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