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Author  |
Vontrat Reberac A., Cerisier J.C., Sato N. & Lester M. |
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Title |
Noon ionospheric signatures of a sudden commencement following a solar wind pressure pulse. |
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Journal Article |
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Year |
2002 |
Publication |
Annales geophysicae |
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20 |
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Pages |
639-645 |
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312 |
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Bachelor's thesis |
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0992-7689 |
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yes |
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353 |
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Author |
Von Beckerath, X., Eitzinger, B., Sittler, B., Gilg, O., Yannic, G., Klein, A.-M., Benadi, G. |
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Title |
Long-term monitoring reveals topographical features and vegetation explain winter habitat use of an Arctic rodent |
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Peer-reviewed symposium |
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Year |
2021 |
Publication |
Annual meeting of the icelandic ecological society. nordic society oikos, reykjavik, iceland, 16-17 april 2021 |
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1036 |
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yes |
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8450 |
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Title |
Weak effects of geolocators on small birds: A meta-analysis controlled for phylogeny and publication bias |
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Journal |
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Year |
2020 |
Publication |
Journal of Animal Ecology |
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Volume |
89 |
Issue |
1 |
Pages |
207-220 |
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Keywords |
condition migration phenology reproduction return rate survival tag effect tracking device |
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Abstract |
Currently, the deployment of tracking devices is one of the most frequently used approaches to study movement ecology of birds. Recent miniaturization of light-level geolocators enabled studying small bird species whose migratory patterns were widely unknown. However, geolocators may reduce vital rates in tagged birds and may bias obtained movement data. There is a need for a thorough assessment of the potential tag effects on small birds, as previous meta-analyses did not evaluate unpublished data and impact of multiple life-history traits, focused mainly on large species and the number of published studies tagging small birds has increased substantially. We quantitatively reviewed 549 records extracted from 74 published and 48 unpublished studies on over 7,800 tagged and 17,800 control individuals to examine the effects of geolocator tagging on small bird species (body mass <100 g). We calculated the effect of tagging on apparent survival, condition, phenology and breeding performance and identified the most important predictors of the magnitude of effect sizes. Even though the effects were not statistically significant in phylogenetically controlled models, we found a weak negative impact of geolocators on apparent survival. The negative effect on apparent survival was stronger with increasing relative load of the device and with geolocators attached using elastic harnesses. Moreover, tagging effects were stronger in smaller species. In conclusion, we found a weak effect on apparent survival of tagged birds and managed to pinpoint key aspects and drivers of tagging effects. We provide recommendations for establishing matched control group for proper effect size assessment in future studies and outline various aspects of tagging that need further investigation. Finally, our results encourage further use of geolocators on small bird species but the ethical aspects and scientific benefits should always be considered. |
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1036 |
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ISSN |
1365-2656 |
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yes |
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Serial |
7670 |
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Author |
Voisin Didier, Jaffrezo Jean-Luc, Houdier Stphan, Barret Manuel, Cozic Julie, King Martin D, France James L, Reay Holly J, Grannas Amanda, Kos Gregor, Ariya Parisa A, Beine Harry J, Domine Florent, |
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Title |
Carbonaceous species and humic like substances (HULIS) in Arctic snowpack during OASIS field campaign in Barrow
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Journal Article |
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Year |
2012 |
Publication |
J. Geophys. Res. |
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Volume |
117 |
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Pages |
D00R19- |
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Keywords |
HULIS, OASIS, carbonaceous species, snow chemistry, snow metamorphism, 0305 Atmospheric Composition and Structure: Aerosols and particles (0345, 4801, 4906), 0706 Cryosphere: Active layer, 0736 Cryosphere: Snow (1827, 1863), |
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Abstract |
Snowpacks contain many carbonaceous species that can potentially impact on snow albedo and arctic atmospheric chemistry. During the OASIS field campaign, in March and April 2009, Elemental Carbon (EC), Water insoluble Organic Carbon (WinOC) and Dissolved Organic Carbon (DOC) were investigated in various types of snow: precipitating snows, remobilized snows, wind slabs and depth hoars. EC was found to represent less than 5% of the Total Carbon Content (TCC = EC + WinOC + DOC), whereas WinOC was found to represent an unusual 28 to 42% of TCC. Snow type was used to infer physical processes influencing the evolution of different fractions of DOC. DOC is highest in soil influenced indurated depth hoar layers due to specific wind related formation mechanisms in the early season. Apart from this specific snow type, DOC is found to decrease from precipitating snow to remobilized snow to regular depth hoar. This decrease is interpreted as due to cleaving photochemistry and physical equilibration of the most volatile fraction of DOC. Depending on the relative proportions of diamond dust and fresh snow in the deposition of the seasonal snowpack, we estimate that 31 to 76% of DOC deposited to the snowpack is reemitted back to the boundary layer. Under the assumption that this reemission is purely photochemical, we estimate an average flux of VOC out of the snowpack of 20 to 170 μgC m-2 h-1. Humic like substances (HULIS), short chain diacids and aldehydes are quantified, and showed to represent altogether a modest (<20%) proportion of DOC, and less than 10% of DOC + WinOC. HULIS optical properties are measured and could be consistent with aged biomass burning or a possible marine source.
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1017 |
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AGU |
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0148-0227 |
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yes |
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Serial |
841 |
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Author |
Vogel, N., Dommergue, A., Ferrari, C., Preunkert, S., Jourdain, B., Legrand, M. |
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Title |
What can we learn from atmospheric Mercury monitoring in coastal Antarctica (DDU) ? |
Type |
Conference - International - Communication |
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Year |
2011 |
Publication |
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Abstract |
The 10th International Conference on Mercury as a Global Pollutant (ICMGP),Halifax (Canada), 24-29 July |
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1028 |
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yes |
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3362 |
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Author |
Vogel, N., Dommergue, A., Ferrari, C., Preunkert, S., Jourdain, B., Legrand, M. |
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Conference - International - Poster |
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Year |
2011 |
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Abstract |
The 10th International Conference on Mercury as a Global Pollutant (ICMGP),Halifax (Canada), 24-29 July |
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1028 |
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yes |
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3734 |
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Author |
Vo Quang A. |
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Title |
Attachment place selection and fidelity in king penguins |
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Master 2 |
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Year |
2014 |
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137 |
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yes |
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6900 |
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Title |
Variability of the Antarctic Circumpolar Current transport through the Fawn Trough, Kerguelen Plateau
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Journal Article |
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Year |
2015 |
Publication |
Deep Sea Research Part II: Topical Studies in Oceanography |
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114 |
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12-26 |
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Southern Ocean, ACC, Kerguelen Plateau, Fawn Trough, Altimetry, Jason, TOPEX-Poseidon, Volume transport, |
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1061 |
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0967-0645 |
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5695 |
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Author |
Vivier F, Y-H Park , and H Sekma |
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Title |
Variability of the ACC transport across the Kerguelen Plateau |
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Conference - International - Communication |
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Year |
2012 |
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1061 |
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yes |
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4673 |
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Author |
Vivier F, Weill , A, and the OPTIMISM consortium. |
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Conference - International - Communication |
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2011 |
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1015 |
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1069 |
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