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Author Marie-Amélie Forin‐Wiart, Manfred R. Enstipp, Yvon LE Maho, Yves Handrich doi  isbn
openurl 
  Title Why implantation of bio-loggers may improve our understanding of how animals cope within their natural environment Type Journal
  Year 2018 Publication Integrative Zoology Abbreviated Journal  
  Volume 14 Issue 1 Pages 48-64  
  Keywords behavior bio-logging device implantation eco-physiology long-term deployment  
  Abstract Bio-loggers are miniaturized autonomous devices that record quantitative data on the state of free-ranging animals (e.g. behavior, position and physiology) and their natural environment. This is especially relevant for species where direct visual observation is difficult or impossible. Today, ongoing technical development allows the monitoring of numerous parameters in an increasing range of species over extended periods. However, the external attachment of devices might affect various aspects of animal performance (energetics, thermoregulation, foraging as well as social and reproductive behavior), which ultimately affect fitness. External attachment might also increase entanglement risk and the conspicuousness of animals, leaving them more vulnerable to predation. By contrast, implantation of devices can mitigate many of these undesirable effects and might be preferable, especially for long-term studies, provided that the many challenges associated with surgical procedures can be mastered. Implantation may then allow us to gather data that would be impossible to obtain otherwise and thereby may provide new and ecologically relevant insights into the life of wild animals. Here, we: (i) discuss the pros and cons of attachment methods; (ii) highlight recent field studies that used implanted bio-loggers to address eco-physiological questions in a wide range of species; and (iii) discuss logger implantation in light of ethical considerations.  
  Programme 394  
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  Series Volume Series Issue Edition  
  ISSN 1749-4877 ISBN (down) 1749-4877 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 6923  
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Author Guillemette Labadie, Paul Tixier, Christophe Barbraud, Rémi Fay, Nicolas Gasco, Guy Duhamel, Christophe Guinet doi  isbn
openurl 
  Title First demographic insights on historically harvested and poorly known male sperm whale populations off the Crozet and Kerguelen Islands (Southern Ocean) Type Journal
  Year 2018 Publication Marine Mammal Science Abbreviated Journal  
  Volume 34 Issue 3 Pages 595-615  
  Keywords abundance Antarctic mark-recapture multistate Physeter macrocephalus robust design sperm whale  
  Abstract Age and sex dependent spatial segregation has resulted in limited knowledge of the ecology and demography of sperm whale adult males feeding seasonally in high latitudes. This study focused on adult males interacting with the Patagonian toothfish (Dissostichus eleginoides) fishery operating off the Kerguelen and Crozet Archipelagos. Demographic parameters were estimated using a 10-yr-long photo-identification data set paired with multistate closed robust design capture-mark-recapture models. The examination of a set of 29,078 photographs taken from fishing vessels during sperm whale depredation events resulted in identification of 295 individuals with nine visiting both study areas. Dispersal between both study regions was estimated to be 1% per year. The mean annual number of interacting sperm whales was estimated to n = 82 (95% CI 58–141) in Crozet and n = 106 (95% CI 76–174) in Kerguelen. Transient proportions were 13% in Crozet and 26% in Kerguelen. Corrected for transience, apparent survival estimates were 0.953 (95% CI 0.890–0.993) in Crozet, and 0.911 (95% CI 0.804–0.986) in Kerguelen. These survival and population size estimates are the first for depredating adult males in high latitudes, and can be used in evaluating the current conservation status of this historically harvested stock and to investigate depredation trends in 35 both Crozet and Kerguelen Islands.  
  Programme 109  
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  Series Volume Series Issue Edition  
  ISSN 1748-7692 ISBN (down) 1748-7692 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 7123  
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Author P. Li Cavoli, G. Hubert, J. Busto doi  isbn
openurl 
  Title Study of atmospheric muon interactions in Si nanoscale devices Type Journal
  Year 2017 Publication Journal of Instrumentation Abbreviated Journal  
  Volume 12 Issue 12 Pages P12021-P12021  
  Keywords  
  Abstract In this paper the impact of the muon radial ionization profile on Single-Event Upset (SEU) sensitivity for nanoscale technologies is investigated with simulations and experimental measurements. The physical model used in the simulation framework is compared with experimental measurements of the charge deposit induced by atmospheric particles on a CCD pixel array. This scientific instrument is used to monitor the atmospheric muons, and allows to investigate the charge deposition induced by muon of micrometric sensitive volumes (i.e. the CCD pixel). Atmospheric and underground sites are considered for monitoring pixel-charge events and the combined analysis of the data is used to discriminate muons from other particles. 3D descriptions of muon tracks were simulated with radiation transport code Geant4, and coupled with Single Event Effect (SEE) simulation based on multi-physics approaches (MUSCA SEP3) to investigate the SEU cross-section and Soft Error Rate (SER) trends as function of technological downscaling. SER trends are analyzed for bulk technologies, from 65 to 14 nm integration nodes, in both ground and avionic environments. Results show that for technologies whose characteristic lengths are greater than 50 nm, it is not necessary to consider radial energy deposit structure of muon in SEE assessment. At ground, downscaling of the technological node induces an increase in the SEU susceptibility to cosmic ray showers, mainly because of muons. For nanoscale devices operating at avionic altitude, the muon contribution to the SER is very weak in comparison of the proton and neutron contributions.  
  Programme 1112  
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  Series Volume Series Issue Edition  
  ISSN 1748-0221 ISBN (down) 1748-0221 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 7041  
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Author Florian Orgeret, Henri Weimerskirch, Charles-André Bost doi  isbn
openurl 
  Title Early diving behaviour in juvenile penguins: improvement or selection processes Type Journal
  Year 2016 Publication Biology Letters Abbreviated Journal  
  Volume 12 Issue 8 Pages 20160490  
  Keywords  
  Abstract The early life stage of long-lived species is critical to the viability of population, but is poorly understood. Longitudinal studies are needed to test whether juveniles are less efficient foragers than adults as has been hypothesized. We measured changes in the diving behaviour of 17 one-year-old king penguins Aptenodytes patagonicus at Crozet Islands (subantartic archipelago) during their first months at sea, using miniaturized tags that transmitted diving activity in real time. We also equipped five non-breeder adults with the same tags for comparison. The data on foraging performance revealed two groups of juveniles. The first group made shallower and shorter dives that may be indicative of early mortality while the second group progressively increased their diving depths and durations, and survived the first months at sea. This surviving group of juveniles required the same recovery durations as adults, but typically performed shallower and shorter dives. There is thereby a relationship between improved diving behaviour and survival in young penguins. This long period of improving diving performance in the juvenile life stage is potentially a critical period for the survival of deep avian divers and may have implications for their ability to adapt to environmental change.  
  Programme 109  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1744-9561, 1744-957X ISBN (down) 1744-9561, 1744-957X Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 6624  
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Author Hannah Joy Kriesell, Céline Le Bohec, Alexander F. Cerwenka, Moritz Hertel, Jean-Patrice Robin, Bernhard Ruthensteiner, Manfred Gahr, Thierry Aubin, Daniel Normen Düring file  doi
isbn  openurl
  Title Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production Type Journal
  Year 2020 Publication Frontiers in Zoology Abbreviated Journal  
  Volume 17 Issue 1 Pages 5  
  Keywords  
  Abstract The astonishing variety of sounds that birds can produce has been the subject of many studies aiming to identify the underlying anatomical and physical mechanisms of sound production. An interesting feature of some bird vocalisations is the simultaneous production of two different frequencies. While most work has been focusing on songbirds, much less is known about dual-sound production in non-passerines, although their sound production organ, the syrinx, would technically allow many of them to produce “two voices”. Here, we focus on the king penguin, a colonial seabird whose calls consist of two fundamental frequency bands and their respective harmonics. The calls are produced during courtship and for partner and offspring reunions and encode the birds’ identity. We dissected, μCT-scanned and analysed the vocal tracts of six adult king penguins from Possession Island, Crozet Archipelago.  
  Programme 119,137  
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  Corporate Author Thesis Bachelor's thesis  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1742-9994 ISBN (down) 1742-9994 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 7671  
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Author F. Domine, M. Barrere, S. Morin doi  isbn
openurl 
  Title The growth of shrubs on high Arctic tundra at Bylot Island: impact on snow physical properties and permafrost thermal regime Type Journal
  Year 2016 Publication Biogeosciences Abbreviated Journal  
  Volume 13 Issue 23 Pages 6471-6486  
  Keywords  
  Abstract With climate warming, shrubs have been observed to grow on Arctic tundra. Their presence is known to increase snow height and is expected to increase the thermal insulating effect of the snowpack. An important consequence would be the warming of the ground, which will accelerate permafrost thaw, providing an important positive feedback to warming. At Bylot Island (73° N, 80° W) in the Canadian high Arctic where bushes of willows (Salix richardsonii Hook) are growing, we have observed the snow stratigraphy and measured the vertical profiles of snow density, thermal conductivity and specific surface area (SSA) in over 20 sites of high Arctic tundra and in willow bushes 20 to 40 cm high. We find that shrubs increase snow height, but only up to their own height. In shrubs, snow density, thermal conductivity and SSA are all significantly lower than on herb tundra. In shrubs, depth hoar which has a low thermal conductivity was observed to grow up to shrub height, while on herb tundra, depth hoar only developed to 5 to 10 cm high. The thermal resistance of the snowpack was in general higher in shrubs than on herb tundra. More signs of melting were observed in shrubs, presumably because stems absorb radiation and provide hotspots that initiate melting. When melting was extensive, thermal conductivity was increased and thermal resistance was reduced, counteracting the observed effect of shrubs in the absence of melting. Simulations of the effect of shrubs on snow properties and on the ground thermal regime were made with the Crocus snow physics model and the ISBA (Interactions between Soil–Biosphere–Atmosphere) land surface scheme, driven by in situ and reanalysis meteorological data. These simulations did not take into account the summer impact of shrubs. They predict that the ground at 5 cm depth at Bylot Island during the 2014–2015 winter would be up to 13 °C warmer in the presence of shrubs. Such warming may however be mitigated by summer effects.  
  Programme 1042  
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  Corporate Author Thesis  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1726-4189 ISBN (down) 1726-4189 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 6906  
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Author Jens Zinke, Juan P. D'Olivo, Christoph J. Gey, Malcolm T. McCulloch, J. Henrich Bruggemann, Janice M. Lough, Mireille M. M. Guillaume doi  isbn
openurl 
  Title Multi-trace-element sea surface temperature coral reconstruction for the southern Mozambique Channel reveals teleconnections with the tropical Atlantic Type Journal
  Year 2019 Publication Biogeosciences Abbreviated Journal  
  Volume 16 Issue 3 Pages 695-712  
  Keywords  
  Abstract

Abstract. Here we report seasonally resolved sea surface temperatures for the southern Mozambique Channel in the SW Indian Ocean based on multi-trace-element temperature proxy records preserved in two Porites sp. coral cores. Particularly, we assess the suitability of both separate and combined Sr∕Ca and Li∕Mg proxies for improved multielement SST reconstructions. Overall, geochemical records from Europa Island Porites sp. highlight the potential of Sr∕Ca and Li∕Mg ratios as high-resolution climate proxies but also show significant differences in their response at this Indian Ocean subtropical reef site. Our reconstruction from 1970 to 2013 using the Sr∕Ca SST proxy reveals a warming trend of 0.58±0.1C in close agreement with instrumental data (0.47±0.07C) over the last 42 years (1970–2013). In contrast, the Li∕Mg showed unrealistically large warming trends, most probably caused by uncertainties around different uptake mechanisms of the trace elements Li and Mg and uncertainties in their temperature calibration. In our study, Sr∕Ca is superior to Li∕Mg to quantify absolute SST and relative changes in SST. However, spatial correlations between the combined detrended Sr∕Ca and Li∕Mg proxies compared to instrumental SST at Europa revealed robust correlations with local climate variability in the Mozambique Channel and teleconnections to regions in the Indian Ocean and southeastern Pacific where surface wind variability appeared to dominate the underlying pattern of SST variability. The strongest correlation was found between our Europa SST reconstruction and instrumental SST records from the northern tropical Atlantic. Only a weak correlation was found with ENSO, with recent warm anomalies in the geochemical proxies coinciding with strong El Niño or La Niña. We identified the Pacific–North American (PNA) atmospheric pattern, which develops in the Pacific in response to ENSO, and the tropical North Atlantic SST as the most likely causes of the observed teleconnections with the Mozambique Channel SST at Europa.

 
  Programme 688  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1726-4170 ISBN (down) 1726-4170 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 7497  
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Author Vincent Bretagnolle, Marc Benoit, Mathieu Bonnefond, Vincent Breton, Jon Church, Sabrina Gaba, Daniel Gilbert, François Gillet, Sandrine Glatron, Chloé Guerbois, Nicolas Lamouroux, Marc Lebouvier, Camille Mazé, Jean-Marie Mouchel, Annie Ouin, Olivier Pays, Christophe Piscart, Olivier Ragueneau, Sylvie Servain, Thomas Spiegelberger, Hervé Fritz doi  isbn
openurl 
  Title Action-orientated research and framework: insights from the French long-term social-ecological research network Type Journal
  Year 2019 Publication Ecology and Society Abbreviated Journal  
  Volume 24 Issue 3 Pages  
  Keywords  
  Abstract Bretagnolle, V., M. Benoit, M. Bonnefond, V. Breton, J. M. Church, S. Gaba, D. Gilbert, F. Gillet, S. Glatron, C. Guerbois, N. Lamouroux, M. Lebouvier, C. Mazé, J.-M. Mouchel, A. Ouin, O. Pays, C. Piscart, O. Ragueneau, S. Servain, T. Spiegelberger, and H. Fritz. 2019. Action-orientated research and framework: insights from the French long-term social-ecological research network. Ecology and Society 24(3):10. https://doi.org/10.5751/ES-10989-240310  
  Programme 136  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1708-3087 ISBN (down) 1708-3087 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 7014  
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Author C. Genthon, L. Piard, E. Vignon, J.-B. Madeleine, M. Casado, H. Gallée doi  isbn
openurl 
  Title Atmospheric moisture supersaturation in the near-surface atmosphere at Dome C, Antarctic Plateau Type Journal
  Year 2017 Publication Atmos. chem. phys. Abbreviated Journal  
  Volume 17 Issue 1 Pages 691-704  
  Keywords  
  Abstract Supersaturation often occurs at the top of the troposphere where cirrus clouds form, but is comparatively unusual near the surface where the air is generally warmer and laden with liquid and/or ice condensation nuclei. One exception is the surface of the high Antarctic Plateau. One year of atmospheric moisture measurement at the surface of Dome C on the East Antarctic Plateau is presented. The measurements are obtained using commercial hygrometry sensors modified to allow air sampling without affecting the moisture content, even in the case of supersaturation. Supersaturation is found to be very frequent. Common unadapted hygrometry sensors generally fail to report supersaturation, and most reports of atmospheric moisture on the Antarctic Plateau are thus likely biased low. The measurements are compared with results from two models implementing cold microphysics parameterizations: the European Center for Medium-range Weather Forecasts through its operational analyses, and the Model Atmosphérique Régional. As in the observations, supersaturation is frequent in the models but the statistical distribution differs both between models and observations and between the two models, leaving much room for model improvement. This is unlikely to strongly affect estimations of surface sublimation because supersaturation is more frequent as temperature is lower, and moisture quantities and thus water fluxes are small anyway. Ignoring supersaturation may be a more serious issue when considering water isotopes, a tracer of phase change and temperature, largely used to reconstruct past climates and environments from ice cores. Because observations are easier in the surface atmosphere, longer and more continuous in situ observation series of atmospheric supersaturation can be obtained than higher in the atmosphere to test parameterizations of cold microphysics, such as those used in the formation of high-altitude cirrus clouds in meteorological and climate models.  
  Programme 1013  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1680-7324 ISBN (down) 1680-7324 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 6573  
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Author F. Sprovieri, N. Pirrone, M. Bencardino, F. D'Amore, H. Angot, C. Barbante, E.-G. Brunke, F. Arcega-Cabrera, W. Cairns, S. Comero, M. D. C. Diéguez, A. Dommergue, R. Ebinghaus, X. B. Feng, X. Fu, P. E. Garcia, B. M. Gawlik, U. Hageström, K. Hansson, M. Horvat, J. Kotnik, C. Labuschagne, O. Magand, L. Martin, N. Mashyanov, T. Mkololo, J. Munthe, V. Obolkin, M. Ramirez Islas, F. Sena, V. Somerset, P. Spandow, M. Vardè, C. Walters, I. Wängberg, A. Weigelt, X. Yang, H. Zhang doi  isbn
openurl 
  Title Five-year records of mercury wet deposition flux at GMOS sites in the Northern and Southern hemispheres Type Journal
  Year 2017 Publication Atmos. chem. phys. Abbreviated Journal  
  Volume 17 Issue 4 Pages 2689-2708  
  Keywords  
  Abstract The atmospheric deposition of mercury (Hg) occurs via several mechanisms, including dry and wet scavenging by precipitation events. In an effort to understand the atmospheric cycling and seasonal depositional characteristics of Hg, wet deposition samples were collected for approximately 5 years at 17 selected GMOS monitoring sites located in the Northern and Southern hemispheres in the framework of the Global Mercury Observation System (GMOS) project. Total mercury (THg) exhibited annual and seasonal patterns in Hg wet deposition samples. Interannual differences in total wet deposition are mostly linked with precipitation volume, with the greatest deposition flux occurring in the wettest years. This data set provides a new insight into baseline concentrations of THg concentrations in precipitation worldwide, particularly in regions such as the Southern Hemisphere and tropical areas where wet deposition as well as atmospheric Hg species were not investigated before, opening the way for future and additional simultaneous measurements across the GMOS network as well as new findings in future modeling studies.  
  Programme 1028  
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  Corporate Author Thesis  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1680-7324 ISBN (down) 1680-7324 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 6588  
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