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Author |
Krinner, G.; Guicherd, B.; Ox, K.; Genthon, C.; Magand, O. |
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Title |
Influence of Oceanic Boundary Conditions in Simulations of Antarctic Climate and Surface Mass Balance Change during the Coming Century |
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Journal Article |
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Year |
2008 |
Publication |
Journal of climate |
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21 |
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5 |
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938-962 |
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This article reports on high-resolution (60 km) atmospheric general circulation model simulations of the Antarctic climate for the periods 1981–2000 and 2081–2100. The analysis focuses on the surface mass balance change, one of the components of the total ice sheet mass balance, and its impact on global eustatic sea level. Contrary to previous simulations, in which the authors directly used sea surface boundary conditions produced by a coupled ocean–atmosphere model for the last decades of both centuries, an anomaly method was applied here in which the present-day simulations use observed sea surface conditions, while the simulations for the end of the twenty-first century use the change in sea surface conditions taken from the coupled simulations superimposed on the present-day observations. It is shown that the use of observed oceanic boundary conditions clearly improves the simulation of the present-day Antarctic climate, compared to model runs using boundary conditions from a coupled climate model. Moreover, although the spatial patterns of the simulated climate change are similar, the two methods yield significantly different estimates of the amplitude of the future climate and surface mass balance change over the Antarctic continent. These differences are of similar magnitude as the intermodel dispersion in the current Intergovernmental Panel on Climate Change (IPCC) exercise: selecting a method for generating boundary conditions for a high-resolution model may be just as important as selecting the climate model itself. Using the anomaly method, the simulated mean surface mass balance change over the grounded ice sheet from 1981–2000 to 2081–2100 is 43-mm water equivalent per year, corresponding to a eustatic sea level decrease of 1.5 mm yr?1. A further result of this work is that future continental-mean surface mass balance changes are dominated by the coastal regions, and that high-resolution models, which better resolve coastal processes, tend to predict stronger precipitation changes than models with lower spatial resolution. |
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454 |
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0894-8755 |
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yes |
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IPEV @ Thierry.Lemaire @ |
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5501 |
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Angelier Frédéric, Wingfield John C., Tartu Sabrina, Chastel Olivier |
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Title |
Does prolactin mediate parental and life-history decisions in response to environmental conditions in birds? A review |
Type |
Journal Article |
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Year |
2016 |
Publication |
Hormones and behavior |
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77 |
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18-29 |
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This article is part of a Special Issue “Parental Care”. In vertebrates, adjustments of physiology and behavior to environmental changes are often mediated by central physiological mechanisms, and more specifically by hormonal mechanisms. As a consequence, these mechanisms are thought to orchestrate life-history decisions in wild vertebrates. For instance, investigating the hormonal regulation of parental behavior is relevant to evaluate how parents modulate their effort according to specific environmental conditions. Surprisingly and despite being classically known as the ‘parental hormone’, prolactin has been overlooked in birds relative to this context. Our aim is to review evidence that changes in prolactin levels can mediate, at least to some extent, the response of breeding birds to environmental conditions. To do so, we first examine current evidence and limits for the role of prolactin in mediating parental behavior in birds. Second, we emphasize the influence of environmental conditions and stressors on circulating prolactin levels. In addition, we review to what extent prolactin levels are a reliable predictor of breeding success in wild birds. By linking environmental conditions, prolactin regulation, parental behavior, and breeding success, we highlight the potential role of this hormone in mediating parental decisions in birds. Finally, we also review the potential role of prolactin in mediating other life history decisions such as clutch size, re-nesting, and the timing of molt. By evaluating the influence of stressors on circulating prolactin levels during these other life-history decisions, we also raise new hypotheses regarding the potential of the prolactin stress response to regulate the orchestration of the annual cycle when environmental changes occur. To sum up, we show in this review that prolactin regulation has a strong potential to allow ecological physiologists to better understand how individuals adjust their life-history decisions (clutch size, parental behavior, re-nesting, and onset of molt) according to the environmental conditions they encounter and we encourage further research on that topic. |
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109 |
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0018-506X |
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yes |
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6488 |
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Author |
Maj Emilie |
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Title |
La vache sédentaire, le renne et le cheval « nomades » chez les Évènes et les Iakoutes des monts de Verkhoïansk (République Sakha, Iakoutie). |
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2009 |
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23 |
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36-56 |
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This article is in French with a whole translation in English. About horseherding, cattle breeding and reindeer husbandry in Northern Yakutia. |
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1024 |
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yes |
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2026 |
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Author |
Yann Borjon-Privé |
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Title |
“Facticius avis: does any bird fly in the Dolgan world?”. A Siberian case of assisted reproductive technology, or how to get a baby among the Dolgan people? |
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Conference - International - Article with Reading Comitee |
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Year |
2015 |
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This article is about pregnancy and childhood by the Dolgan people. It results of data gathered in 2013 and 2014, next compared to archives and published data concerning the Dolgan people of the XIXth century, the Tungusic and Yakut peoples.
The proceedings of this Second International Conference of Tungusic Anthropology have to be published. The Organising comitee has announced to be in discussion with different international journals, located in the United-Kingdom and Russia. The publication is expected in 2016. |
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1121 |
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yes |
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6140 |
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Author |
Liubomira Romanova, Vincent Balter, Laurent Simon, Patrice Gerard, Nadejda Pokatilova, Eric Crubezy |
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Title |
Diet of autochthonous populations in Yakutia using isotopic, ethnographic, historical and archaeological data |
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2019 |
Publication |
Journal of Archaeological Science: Reports |
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28 |
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102022 |
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15th–19th centuries AD Carbon isotopes Diet Eastern Siberia Nitrogen isotopes Yakutia |
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This article investigates, for the first time, the diet of the Yakut population between the 15th and 19th centuries AD. Analyses of the stable isotopes of carbon and nitrogen in human and animal bone collagen were used for the study. The stable isotope values were then compared through four historical periods, three geographical areas, sexes, and socio-economic groups determined by the presence or absence of artefacts in the excavated tombs. The results highlight the variety of dietary practices among the Yakuts. There are significant differences between the North, characterised mostly by the consumption of herbivores, the Viluy region, where fish had an important role, and Central Yakutia with a diversified diet. No differences were seen between the diets of men and women. The group of elites had a stable diet based on meat and milk consumption. Samples before 1700AD had δ15N values that were higher than samples from other periods, probably due to greater consumption of fish and foal meat. These data were compared with ethnographic, historical and archaeological information so as to better depict the diet of these past populations. |
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1038 |
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2352-409X |
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yes |
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7700 |
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Author |
Grilli R, Marrocco N, Desbois T, Guillerm C, Triest J, Kerstel E, Romanini D, |
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Invited article: SUBGLACIOR: an optical analyzer embedded in an Antarctic ice probe for exploring the past climate.
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Journal Article |
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2014 |
Publication |
The Review of scientific instruments |
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85 |
Issue |
11 |
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111301-111301 |
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This article describes the advances made in the development of a specific optical spectrometer based
on the Optical Feedback-Cavity Enhanced Absorption Spectroscopy technique for exploring past climate
by probing the original composition of the atmosphere stored in the ice sheet of a glacier. Based on significant technological progresses and unconventional approaches, SUBGLACIOR will be a
revolutionary tool for ice-core research: the optical spectrometer, directly embedded in the drilling probe, will provide in situ real-time measurements of deuterium isotopic variations (δ2H ) and CH4 concentrations down to 3500 m of ice depth within a single Antarctic season. The instrument will provide simultaneous and real-time vertical profiles of these two key climate signatures in order to evaluate if a target site can offer ice cores as old as 1.5 million years by providing direct insight into past temperatures and climate cycles. The spectrometer has a noise equivalent absorption coefficient of 2.8 × 10-10 cm-1 Hz-1/2, corresponding to a detection limit of 0.2 ppbv for CH4 and a precision of 0.2‰ on the δ2H of H2O within 1 min acquisition time. |
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1119 |
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AIP Publishing |
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0034-6748 |
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yes |
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5929 |
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Author |
Vincent Zvénigorosky, Dariya Nikolaeva, Georgii Romanov, Aisen Solovev, Nikolai Barashkov, Éric Crubézy, Sardana Fedorova, Christine Keyser |
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Title |
Persistence and Disappearance of Traditional Patrilocality: Matrimonial Strategies and Postnuptial Residence Patterns in Two Eastern Siberian Communities of the Twenty-First Century |
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2019 |
Publication |
Sibirica |
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18 |
Issue |
1 |
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53-70 |
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This article describes current matrimonial strategies and residence patterns in two communities in the Sakha Republic. In Tolon, a rural settlement in central Sakha, community exogamy is predominant and patrilocality is detectable in postnuptial residence patterns. In the sub-Arctic town of Khonuu no gendered residence patterns are observed. Khonuu has an airport and serves as a regional capital. In Khonuu matrimonial decisions follow the immigration of men and couples rather than traditional strategies connected with horse- and cattle-based subsistence. This article discusses the possible biological, historical, and cultural reasons that explain the observance or lack of observance of traditional marriage in the contemporary Sakha Republic. |
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1038 |
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Bachelor's thesis |
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1476-6787, 1361-7362 |
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7530 |
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DETTAI A., LAUTREDOU A.C. ,BONILLO C., HAUTECOEUR M., GOIMBAULT E. , TERCERIE S. , CRUAUD C., COULOUX A., DUHAMEL G., REY O. , CAUSSE R., PRUVOST P., BUSSON F., KOUBBI P., MOTEKI M. , IGLESIAS S., LECOINTRE G.& C. OZOUF-COSTAZ |
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Title |
The CEAMARC Survey: Barcodes as a multi level tool for new findings. |
Type |
Conference - International - Communication |
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2009 |
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Third International Barcode of Life Conference, 7-13 nov. 2009, Mexico City, Mexico |
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1124 |
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Bachelor's thesis |
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yes |
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1309 |
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Gayet J-F, A. Schwarzenboeck, C. Duroure, R. Lefevre, C. Gourbeyre, A. Minikin, R. Krejci and A. Herber |
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Title |
Microphysical properties of an Arctic stratocumulus cloud observed during ASTAR experiment |
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Conference - International - Communication |
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2005 |
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Third Int. symposium on the Arctic Research. 22 – |
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430 |
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yes |
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4212 |
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Gayet J-F, C. Duroure, A. Schwarzenboeck, I. Stachlewska, R. Neuber, C. Ritter, O. Jourdan and V. Shcherbakov |
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Title |
Microphysical and optical properties of mixed-phase clouds obtained from alternated Lidar and in situ observations |
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Conference - International - Communication |
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2005 |
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Third Int. symposium on the Arctic Research. 22 – |
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430 |
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4213 |
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