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Author |
Lucia Gualtieri, Etienne Bachmann, Frederik J Simons, Jeroen Tromp |
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Title |
Generation of secondary microseism Love waves: effects of bathymetry, 3-D structure and source seasonality |
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Year |
2021 |
Publication |
Geophysical Journal International |
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226 |
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1 |
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192-219 |
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133 |
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0956-540X |
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yes |
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8016 |
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Author |
Robert E. Anthony, Adam T. Ringler, Michael DuVernois, Kent R. Anderson, David C. Wilson |
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Title |
Six Decades of Seismology at South Pole, Antarctica: Current Limitations and Future Opportunities to Facilitate New Geophysical Observations |
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Year |
2021 |
Publication |
Seismological Research Letters |
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Volume |
92 |
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5 |
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2718-2735 |
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133 |
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0895-0695 |
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yes |
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8018 |
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Author |
Natasha Roy, James Woollett, Najat Bhiry, Isabel Lemus-Lauzon, Ann Delwaide, Dominique Marguerie |
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Title |
Anthropogenic and climate impacts on subarctic forests in the Nain region, Nunatsiavut: Dendroecological and historical approaches |
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Journal |
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Year |
2021 |
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Volume |
28 |
Issue |
3-4 |
Pages |
361-376 |
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1080 |
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1195-6860 |
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yes |
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8251 |
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Title |
Spatial segregation in a sexually dimorphic central place forager: Competitive exclusion or niche divergence? |
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Journal |
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Year |
2021 |
Publication |
Journal of Animal Ecology |
Abbreviated Journal |
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Volume |
90 |
Issue |
10 |
Pages |
2404-2420 |
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Keywords |
bio-logging central place foraging ecological niche theory intraspecific competition kernel density estimates resource selection functions sexual segregation wandering albatross |
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109,394 |
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Bachelor's thesis |
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ISSN |
1365-2656 |
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yes |
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8093 |
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Title |
Sharing wintering grounds does not synchronize annual survival in a high Arctic seabird, the little auk |
Type |
Journal |
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Year |
2021 |
Publication |
Marine Ecology Progress Series |
Abbreviated Journal |
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Volume |
676 |
Issue |
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Pages |
233-242 |
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Keywords |
Alle alle Capture-mark-recapture Geolocator Migration Non-breeding distribution Synchrony |
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Abstract |
Sharing the same wintering grounds by avian populations breeding in various areas may synchronize fluctuations in vital rates, which could increase the risk of extinction. Here, by combining multi-colony tracking with long-term capture-recapture data, we studied the winter distribution and annual survival of the most numerous Arctic seabird, the little auk Alle alle. We assessed whether little auks from different breeding populations in Svalbard and Franz Josef Land use the same wintering grounds and if this leads to synchronized survival. Our results indicate that birds from the Svalbard colonies shared similar wintering grounds, although differences existed in the proportion of birds from each colony using the different areas. Little auks from Franz Josef Land generally spent the winter in a separate area, but some individuals wintered in the Iceland Sea with Svalbard populations. Survival data from 3 Svalbard colonies collected in 2005-2018 indicated that sharing wintering grounds did not synchronize little auk annual survival rates. However, it is clear that the Iceland Sea is an important wintering area for little auks, and environmental changes in this area could have widespread impacts on many populations. |
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388 |
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ISSN |
0171-8630, 1616-1599 |
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yes |
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8419 |
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Author |
Hippolyte LEURIDAN (based in LSCE, internship will be supervised both by LSCE - Michel RAMONET -, and IGE - Olivier MAGAND-, laboratories) |
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Title |
Investigation of Radon measurements as a tracer of atmospheric mercury sources using Amsterdam Island records (Indian Ocean) |
Type |
Master 2 |
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Year |
2021 |
Publication |
Internship from soac master (air quality thema) |
Abbreviated Journal |
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Abstract |
Since The Signature Of The Minamata Convention On Mercury In 2017, National Regulation Coordinated At An International Level Will Come Into Force In Order To Limit Anthropogenic Emissions And Therefore Protect The Human Health And Ecosystem From This Highly Toxic Pollutant. One Need To Evaluate The Efficiency Of National Measures, And Long-term Monitoring Of Atmospheric Mercury (Hg) Is An Important Tool To Address The Changes Over Time Of Emission Sources, Transport, And Deposition Patterns.the Global Mercury Observation System (Gmos) Project Was Funded By The European Commission (Http://www.gmos.eu) And Started In November 2010 With The Overall Goal To Develop A Coordinated Global Observing System To Monitor Hg On A Global Scale, Including A Large Network Of Ground-based Monitoring Stations. To Date, More Than 40 Ground-based Monitoring Sites Constitute The Global Network Covering Many Regions Where Little To No Observational Data Were Available Before Gmos (Sprovieri Et Al., 2016). All Gmos Work Is Now Continued In The Framework Of The International Frame Work Of Gos4m (Global Observation System For Mercury – Http://www.gos4m.org)although Essential To Fully Understand The Cycling Of Mercury At The Global Scale, Mercury Species Records In The Southern Hemisphere Were Really Scarce Before Gmos. In This Context, An Atmospheric Mercury Monitoring Station Has Been Set Up On Amsterdam Island (37?48 S, 77?34 E) In The Remote Southern Indian Ocean In 2012. Since 2012, We Continuously Measured Gaseous Mercury Species With A 15 Min Frequency. Angot Et Al. (2014) Discussed The First Two Years Of This Record, Using Principally Wind Sector Analysis And Air Mass Back Trajectories. They Also Include In Their Analysis The Unique Continuous Record Of Radon 222 And 220 (Thoron) (Polian Et Al., 1986; Kritz Et Al., 1990). Radon 222 And 220 (Thoron) Activities Can Be Used To Distinguish Local Soil Outgassing From Remote Continental Source. Combined With Meteorological Data, The Change Of Activities Are Then Powerful Tool To Classify Air Mass Origin For The Atmospheric Gaseous Mercury Record. Rapid And Sharp Variations Of Radon 222 Activity, Referred To As &Ldquo;radonic Storms” (Lambert Et Al., 1970) And Ascribed To Strong Continental Air Mass Advection, Are Then Observed At Amsterdam Island. The Occurrence Of Radonic Storms Was Estimated To Be About 4 % In 2012 And 7 % In 2013. Considering The Works Realized In 2014, The Goal Of This Internship Is To Deeper Explore The Relationships Between The Collected Gaseous Elemental Mercury And Observed Radon (222rn / 220rn) Activities In The Entire Data Set. In Particular, We Will Study The Specific And Coupled Trend Of These Compounds, The Frequency And Intensity Of Radonic Storm Occurrence And Their Potential Link With The Gaseous Elemental Mercury Cycle. Local Meteorology Data As Well As Backtrajectories Simulation (Hysplit And/or Flexpart Model) Will Be Also Used. |
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1028 |
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yes |
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8055 |
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Title |
Long-term tracking of an Arctic-breeding seabird indicates high fidelity for pelagic wintering areas |
Type |
Journal |
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Year |
2021 |
Publication |
Marine Ecology Progress Series |
Abbreviated Journal |
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Site fidelity is driven by predictable resource distributions in time and space. However, intrinsic factors related to an individual’s physiology and life-history traits can contribute to consistent foraging behaviour and movement patterns. Using 11 years of continuous geolocation tracking data (fall 2008 to spring 2019), we investigated spatiotemporal consistency in non-breeding movements in a pelagic seabird population of black-legged kittiwakes (Rissa tridactyla) breeding in the High Arctic (Svalbard). Our objective was to assess the relative importance of spatial versus temporal repeatability behind inter-annual movement consistency during winter. Most kittiwakes used pelagic regions of the western North Atlantic. Winter site fidelity was high both within and across individuals and at meso (100-1000 km) and macro scales (>1000 km). Spatial consistency in non-breeding movement was higher within than among individuals, suggesting that site fidelity might emerge from individuals’ memory to return to locations with predictable resource availability. Consistency was also stronger in space than in time, suggesting that it was driven by consistent resource pulses that may vary in time more so than in space. Nonetheless, some individuals displayed more flexibility by adopting a strategy of itinerancy during winter, and the causes of this flexibility are unclear. Specialization for key wintering areas can indicate vulnerability to environmental perturbations, with winter survival and carry-over effects arising from winter conditions as potential drivers of population dynamics |
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330 |
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0171-8630, 1616-1599 |
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yes |
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7988 |
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Title |
Long-term tracking of an Arctic-breeding seabird indicates high fidelity to pelagic wintering areas |
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Journal |
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Year |
2021 |
Publication |
Marine Ecology Progress Series |
Abbreviated Journal |
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Volume |
676 |
Issue |
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Pages |
205-218 |
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Keywords |
Biologging Global Location Sensors GLS Individual consistency Migration Nearest neighbor distance Repeatability Spatial distribution |
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330 |
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0171-8630, 1616-1599 |
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yes |
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Serial |
8607 |
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Author |
Armelle Decaulne, Najat Bhiry, Janie Faucher-Roy, Clara Pelletier Boily |
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Title |
The development of Kangiqsualujjuaq and the threat of snow avalanches in a permafrost degradation context, Nunavik, Canada |
Type |
Journal |
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Year |
2021 |
Publication |
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Abbreviated Journal |
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Issue |
2020/3-2021/1 |
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Keywords |
active layer Canada demographic growth Nordic village slopes snow avalanches |
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Programme |
1148 |
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0755-7809 |
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yes |
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8423 |
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Title |
Using Reciprocal Transplants to Assess Local Adaptation, Genetic Rescue, and Sexual Selection in Newly Established Populations |
Type |
Journal |
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Year |
2021 |
Publication |
Genes |
Abbreviated Journal |
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Volume |
12 |
Issue |
1 |
Pages |
5 |
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Keywords |
gene flow genetic rescue local adaptation mating success small population |
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Abstract |
Small populations establishing on colonization fronts have to adapt to novel environments with limited genetic variation. The pace at which they can adapt, and the influence of genetic variation on their success, are key questions for understanding intraspecific diversity. To investigate these topics, we performed a reciprocal transplant experiment between two recently founded populations of brown trout in the sub-Antarctic Kerguelen Islands. Using individual tagging and genetic assignment methods, we tracked the fitness of local and foreign individuals, as well as the fitness of their offspring over two generations. In both populations, although not to the same extent, gene flow occurred between local and foreign gene pools. In both cases, however, we failed to detect obvious footprints of local adaptation (which should limit gene flow) and only weak support for genetic rescue (which should enhance gene flow). In the population where gene flow from foreign individuals was low, no clear differences were observed between the fitness of local, foreign, and F1 hybrid individuals. In the population where gene flow was high, foreign individuals were successful due to high mating success rather than high survival, and F1 hybrids had the same fitness as pure local offspring. These results suggest the importance of considering sexual selection, rather than just local adaptation and genetic rescue, when evaluating the determinants of success in small and recently founded populations. |
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1041 |
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yes |
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8179 |
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