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Author |
Valentin Wierner |
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Title |
Couverture nuageuse et précipitations neigeuses à Dumont d’Urville |
Type |
Master |
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Year  |
2020 |
Publication |
Master's report |
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1013 |
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Bachelor's thesis |
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yes |
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7743 |
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Van Tilbeurgh V., Joliet F., Atlan A. |
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Title |
La valeur d’existence du vivant dans le subpolaire |
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Peer-reviewed symposium |
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Year |
2020 |
Publication |
16émes journées scientifiques du cnfra, 22-23 septembre 2020, la rochelle, france |
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136 |
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yes |
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8050 |
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Author |
Varlamov A., Keptuke G., Lavrillier A. |
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Title |
Electronic Devices for Safeguarding Indigenous Languages and Cultures (Eastern Siberia) |
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Journal |
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Year |
2020 |
Publication |
Routledge Handbook of Indigenous Peoples in the Arctic |
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58-75 |
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1127 |
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978036722039-6 |
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yes |
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8346 |
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Author |
Vauglin I. |
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Title |
ASTEP et ASTEP+, les exoplanètes depuis Concordia |
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Peer-reviewed symposium |
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Year |
2020 |
Publication |
16émes journées scientifiques du cnfra, 22-23 septembre 2020, la rochelle, france |
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1066 |
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yes |
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8051 |
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Author |
Viblanc V.A., Schull Q.; Stier A., Durand L., Lefol E., Robin J.-P., Zahn S., Bize P., Criscuolo F |
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Title |
Foster rather than biological parental telomere length predicts offspring survival and telomere length in king penguins |
Type |
Peer-reviewed symposium |
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Year |
2020 |
Publication |
16émes journées scientifiques du cnfra, 22-23 septembre 2020, la rochelle, france |
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Because Telomere Length (Tl) And Dynamics Relate To Growth, Reproductive Investment And Survival, Telomeres Might Be Markers Of Individual Quality. In The King Penguin, We Tested The Hypothesis That Parental Tl Can Be A Marker Of Parental Quality. We Swapped The Egg Of Breeding Pairs To Disentangle The Contribution Of Pre And/or Post -Laying Parental Quality On Chick’s Growth, Tl And Survival. Parental Quality Was Estimated Through The Effects Of Biological And Foster Parent Tl On Offspring Traits, 10 Or 105 Days After Hatching. We Show That Chick Survival Up To 10 Days Was Negatively Related To Biological Fathers’ Tl Whereas Survival Up To 105 Days Was Positively Related To Foster Fathers’ Tl. Chick Growth Was Not Related To Parents’ Tl. Chick Tl Was Positively Related To Foster Mothers’ Tl At Both 10 And 105 Days. Overall, We Show That, In A Species With Bi-parental Care, Parents’ Tl Is Foremost A Proxy Of Parental Care Quality, Supporting The Telomere &Ndash; Parental Quality Hypothesis. |
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119 |
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yes |
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8048 |
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Author |
Vincent A. Viblanc, Quentin Schull, Antoine Stier, Laureline Durand, Emilie Lefol, Jean-Patrice Robin, Sandrine Zahn, Pierre Bize, François Criscuolo |
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Title |
Foster rather than biological parental telomere length predicts offspring survival and telomere length in king penguins |
Type |
Journal |
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Year |
2020 |
Publication |
Molecular Ecology |
Abbreviated Journal |
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Keywords |
gene and early life environmental effects growth penguins reproduction investment telomere |
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Abstract |
Because telomere length and dynamics relate to individual growth, reproductive investment and survival, telomeres have emerged as possible markers of individual quality. Here, we tested the hypothesis that, in species with parental care, parental telomere length can be a marker of parental quality that predicts offspring phenotype and survival. In king penguins (Aptenodytes patagonicus), we experimentally swapped the single egg of 66 breeding pairs just after egg laying to disentangle the contribution of prelaying parental quality (e.g., genetics, investment in the egg) and/or postlaying parental quality (e.g., incubation, postnatal feeding rate) on offspring growth, telomere length and survival. Parental quality was estimated through the joint effects of biological and foster parent telomere length on offspring traits, both soon after hatching (day 10) and at the end of the prewinter growth period (day 105). We expected that offspring traits would be mostly related to the telomere lengths (i.e., quality) of biological parents at day 10 and to the telomere lengths of foster parents at day 105. Results show that chick survival up to 10 days was negatively related to biological fathers’ telomere length, whereas survival up to 105 days was positively related to foster fathers’ telomere lengths. Chick growth was not related to either biological or foster parents’ telomere length. Chick telomere length was positively related to foster mothers’ telomere length at both 10 and 105 days. Overall, our study shows that, in a species with biparental care, parents’ telomere length is foremost a proxy of postlaying parental care quality, supporting the “telomere – parental quality hypothesis.” |
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119 |
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1365-294X |
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yes |
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7665 |
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Author |
Vincent Lesur, Aude Chambodut |
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Title |
The French network of magnetic observatories |
Type |
Communication |
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Year |
2020 |
Publication |
EGU General Assembly 2020, Online, 4–8 May 2020 |
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139 |
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yes |
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7095 |
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Author |
Vincent Zvénigorosky, Audrey Sabbagh, Angéla Gonzalez, Jean-Luc Fausser, Friso Palstra, Georgii Romanov, Aisen Solovyev, Nikolay Barashkov, Sardana Fedorova, Éric Crubézy, Bertrand Ludes, Christine Keyser |
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Title |
The limitations of kinship determinations using STR data in ill-defined populations |
Type |
Journal |
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Year |
2020 |
Publication |
International Journal of Legal Medicine |
Abbreviated Journal |
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Volume |
134 |
Issue |
6 |
Pages |
1981-1990 |
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Abstract |
The likelihood ratio (LR) method is commonly used to determine kinship in civil, criminal, or forensic cases. For the past 15 years, our research group has also applied LR to ancient STR data and obtained kinship results for collections of graves or necropolises. Although we were able to reconstruct large genealogies, some pairs of individuals showed ambiguous results. Second-degree relationships, half-sibling pairs for example, were often inconsistent with detected first-degree relationships, such as parent/child or brother/sister pairs. We therefore set about providing empirical estimations of the error rates for the LR method in living populations with STR allelic diversities comparable to that of the ancient populations we had previously studied. We collected biological samples in the field in North-Eastern Siberia and West Africa and studied more than 800 pairs of STR profiles from individuals with known relationships. Because commercial STR panels were constructed for specific regions (namely Europe and North America), their allelic makeup showed a significant deficit in diversity when compared to European populations, replicating a situation often faced in ancient DNA studies. We assessed the capacity of the LR method to confirm known relationships (effectiveness) and its capacity to detect those relationships (reliability). Concerns over the effectiveness of LR determinations are mostly an issue in forensic studies, while the reliability of the detection of kinship is an issue for the study of necropolises or other large gatherings of unidentified individuals, such as disaster victims or mass graves. We show that the application of LR to both test populations highlights specific issues (both false positives and false negatives) that prevent the confirmation of second-degree kinship or even full siblingship in small populations. Up to 29% of detected full sibling relationships were either overestimated half-sibling relationships or underestimated parent-offspring relationships. The error rate for detected half-sibling relationships was even higher, reaching 41%. Only parent-offspring pairs were reliably detected or confirmed. This implies that, in populations that are small, ill-defined, or for which the STR loci analyzed are inappropriate, an examiner might not be able to distinguish a pair of full siblings from a pair of half-siblings. Furthermore, half-sibling pairs might be overlooked altogether, an issue that is exacerbated by the common confusion, in many languages and cultures, between half-siblings and full siblings. Consequently, in the study of ancient populations, human remains of unknown origins, or poorly surveyed modern populations, we recommend a conservative approach to kinship determined by LR. Next-generation sequencing data should be used when possible, but the costs and technology involved might be prohibitive. Therefore, in potentially contentious situations or cases lacking sufficient external information, uniparental markers should be analyzed: ideally, complete mitochondrial genomes and Y-chromosome haplotypes (STR, SNP, and/or sequencing). |
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1038 |
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ISSN |
1437-1596 |
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yes |
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Call Number |
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8059 |
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Author |
Vincent Zvénigorosky, Sylvie Duchesne, Liubomira Romanova, Patrice Gérard, Christiane Petit, Michel Petit, Anatoly Alexeev, Olga Melnichuk, Angéla Gonzalez, Jean-Luc Fausser, Aisen Solovyev, Georgii Romanov, Nikolay Barashkov, Sardana Fedorova, Bertrand Ludes, Eric Crubézy, Christine Keyser |
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Title |
The genetic legacy of legendary and historical Siberian chieftains |
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Journal |
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Year |
2020 |
Publication |
Communications Biology |
Abbreviated Journal |
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Volume |
3 |
Issue |
1 |
Pages |
1-9 |
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Abstract |
Seventeen years of archaeological and anthropological expeditions in North-Eastern Siberia (in the Sakha Republic, Yakutia) have permitted the genetic analysis of 150 ancient (15th-19th century) and 510 modern individuals. Almost all males were successfully analysed (Y-STR) and this allowed us to identify paternal lineages and their geographical expansion through time. This genetic data was confronted with mythological, historical and material evidence to establish the sequence of events that built the modern Yakut genetic diversity. We show that the ancient Yakuts recovered from this large collection of graves are not representative of an ancient population. Uncommonly, we were also able to demonstrate that the funerary preference observed here involved three specific male lineages, especially in the 18th century. Moreover, this dominance was likely caused by the Russian conquest of Siberia which allowed some male clans to rise to new levels of power. Finally, we give indications that some mythical and historical figures might have been the actors of those genetic changes. These results help us reconsider the genetic dynamics of colonization in some regions, question the distinction between fact and myth in national histories and provide a rare insight into a funerary ensemble by revealing the biased process of its composition. |
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1038 |
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Bachelor's thesis |
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ISSN |
2399-3642 |
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2399-3642 |
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yes |
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7790 |
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Vojtěch Brlík, Jaroslav Koleček, Malcolm Burgess, Steffen Hahn, Diana Humple, Miloš Krist, Janne Ouwehand, Emily L. Weiser, Peter Adamík, José A. Alves, Debora Arlt, Sanja Barišić, Detlef Becker, Eduardo J. Belda, Václav Beran, Christiaan Both, Susana P. Bravo, Martins Briedis, Bohumír Chutný, Davor Ćiković, Nathan W. Cooper, Joana S. Costa, Víctor R. Cueto, Tamara Emmenegger, Kevin Fraser, Olivier Gilg, Marina Guerrero, Michael T. Hallworth, Chris Hewson, Frédéric Jiguet, James A. Johnson, Tosha Kelly, Dmitry Kishkinev, Michel Leconte, Terje Lislevand, Simeon Lisovski, Cosme López, Kent P. McFarland, Peter P. Marra, Steven M. Matsuoka, Piotr Matyjasiak, Christoph M. Meier, Benjamin Metzger, Juan S. Monrós, Roland Neumann, Amy Newman, Ryan Norris, Tomas Pärt, Václav Pavel, Noah Perlut, Markus Piha, Jeroen Reneerkens, Christopher C. Rimmer, Amélie Roberto‐Charron, Chiara Scandolara, Natalia Sokolova, Makiko Takenaka, Dirk Tolkmitt, Herman van Oosten, Arndt H. J. Wellbrock, Hazel Wheeler, Jan van der Winden, Klaudia Witte, Bradley K. Woodworth, Petr Procházka |
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Title |
Weak effects of geolocators on small birds: A meta-analysis controlled for phylogeny and publication bias |
Type |
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Year |
2020 |
Publication |
Journal of Animal Ecology |
Abbreviated Journal |
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89 |
Issue |
1 |
Pages |
207-220 |
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condition migration phenology reproduction return rate survival tag effect tracking device |
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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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1365-2656 |
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yes |
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7670 |
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