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Author Thiebot Jean-Baptiste, Weimerskirch Henri, pdf  doi
openurl 
  Title Contrasted associations between seabirds and marine mammals across four biomes of the southern Indian Ocean Type Journal Article
  Year 2013 Publication JOURNAL OF ORNITHOLOGY Abbreviated Journal J. Ornithol.  
  Volume 154 Issue 2 Pages 441-453  
  Keywords Animal Ecology, At-sea observations, Bootstrap procedure, Evolutionary Biology, Foraging strategies, Interspecific interactions, Long-term monitoring, Marine predators, Zoology,  
  Abstract  
  Programme 109  
  Campaign  
  Address  
  Corporate Author Thesis Bachelor's thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2193-7192 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 4408  
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Author Augustin, J.; Blomqvist, D.; Szép, T.; Szabó, Z.; Wagner, R. doi  openurl
  Title No evidence of genetic benefits from extra-pair fertilisations in female sand martins ( Riparia riparia ) Type Journal Article
  Year 2007 Publication Journal of ornithology Abbreviated Journal J. Ornithol.  
  Volume 148 Issue 2 Pages 189-198  
  Keywords  
  Abstract Abstract  Genetic parentage studies of socially monogamous birds reveal a widespread prevalence of extra-pair paternity. Variation in extra-pair paternity among individuals may depend on how different individuals benefit from extra-pair fertilisations and on the opportunity to pursue extra-pair copulations. A long-term study of sand martins (Riparia riparia) in Hungary allowed us to examine patterns of extra-pair fertilisations in a large colony of over 3,000 breeding pairs with many known age individuals. We used multi-locus DNA fingerprinting to determine whether extra-pair fertilisations occur when females are paired to (1) presumably low quality mates, or (2) genetically similar or dissimilar mates, and whether extra-pair fertilisations result in offspring of higher quality. Extra-paternal young were found in 38% of 47 broods and comprised 19% of 190 offspring. Males that lost paternity did not differ significantly from others in age or body condition. Social mates of broods containing extra-pair offspring did not differ in genetic similarity from pairs without extra-pair offspring. Furthermore, there was no significant difference in body condition between extra-pair young and their maternal half-siblings. We were unable to assign paternity and therefore cannot exclude the possibility that extra-pair males differed from the within-pair males they cuckolded, in age, body condition or genetic similarity with the female. We found a positive relationship between paternity losses and breeding density, suggesting that low breeding density may constrain opportunities for seeking extra-pair copulations.  
  Programme 429  
  Campaign  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0021-8375 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number IPEV @ Thierry.Lemaire @ Serial 5652  
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Author Larose Catherine, Berger Sibel, Ferrari Christophe, Navarro Elisabeth, Dommergue Aurélien, Schneider Dominique, Vogel Timothy, pdf  doi
openurl 
  Title Microbial sequences retrieved from environmental samples from seasonal Arctic snow and meltwater from Svalbard, Norway Type Journal Article
  Year 2010 Publication Extremophiles Abbreviated Journal Geochim. Cosmochim. Acta  
  Volume 14 Issue 2 Pages 205-212 -212  
  Keywords Biomedical and Life Sciences,  
  Abstract 16S rRNA gene (rrs) clone libraries were constructed from two snow samples (May 11, 2007 and June 7, 2007) and two meltwater samples collected during the spring of 2007 in Svalbard, Norway (79°N). The libraries covered 19 different microbial classes, including Betaproteobacteria (21.3%), Sphingobacteria (16.4%), Flavobacteria (9.0%), Acidobacteria (7.7%) and Alphaproteobacteria (6.5%). Significant differences were detected between the two sets of sample libraries. First, the meltwater libraries had the highest community richness (Chao1: 103.2 and 152.2) and Shannon biodiversity indices (between 3.38 and 3.59), when compared with the snow libraries (Chao1: 14.8 and 59.7; Shannon index: 1.93 and 3.01). Second, -LIBSHUFF analyses determined that the bacterial communities in the snow libraries were significantly different from those of the meltwater libraries. Despite these differences, our data also support the theory that a common core group of microbial populations exist within a variety of cryohabitats.
 
  Programme 399  
  Campaign  
  Address  
  Corporate Author Thesis Bachelor's thesis  
  Publisher Springer Japan Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1431-0651 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 253  
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Author Aymeric Fromant, John P. Y. Arnould, Karine Delord, Grace J. Sutton, Alice Carravieri, Paco Bustamante, Colin M. Miskelly, Akiko Kato, Maud Brault-Favrou, Yves Cherel, Charles-André Bost file  doi
openurl 
  Title Stage-dependent niche segregation: insights from a multi-dimensional approach of two sympatric sibling seabirds Type Journal
  Year 2022 Publication Oecologia Abbreviated Journal  
  Volume 199 Issue 3 Pages 537-548  
  Keywords Diving petrel Foraging and diving behaviour Niche partitioning Pelecanoides Trophic niche  
  Abstract Niche theory predicts that to reduce competition for the same resource, sympatric ecologically similar species should exploit divergent niches and segregate in one or more dimensions. Seasonal variations in environmental conditions and energy requirements can influence the mechanisms and the degree of niche segregation. However, studies have overlooked the multi-dimensional aspect of niche segregation over the whole annual cycle, and key facets of species co-existence still remain ambiguous. The present study provides insights into the niche use and partitioning of two morphologically and ecologically similar seabirds, the common (CDP, Pelecanoides urinatrix) and the South Georgian diving petrel (SGDP, Pelecanoides georgicus). Using phenology, at-sea distribution, diving behavior and isotopic data (during the incubation, chick-rearing and non-breeding periods), we show that the degree of partitioning was highly stage-dependent. During the breeding season, the greater niche segregation during chick-rearing than incubation supported the hypothesis that resource partitioning increases during energetically demanding periods. During the post breeding period, while species-specific latitudinal differences were expected (species specific water mass preference), CDP and SGDP also migrated in divergent directions. This segregation in migration area may not be only a response to the selective pressure arising from competition avoidance between sympatric species, but instead, could reflect past evolutionary divergence. Such stage-dependent and context-dependent niche segregation demonstrates the importance of integrative approaches combining techniques from different fields, throughout the entire annual cycle, to better understand the co-existence of ecologically similar species. This is particularly relevant in order to fully understand the short and long-term effects of ongoing environmental changes on species distributions and communities.  
  Programme 109,394  
  Campaign  
  Address  
  Corporate Author Thesis Bachelor's thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1432-1939 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8590  
Permanent link to this record
 

 
Author Amandine Gamble, Romain Garnier, Audrey Jaeger, Hubert Gantelet, Eric Thibault, Pablo Tortosa, Vincent Bourret, Jean-Baptiste Thiebot, Karine Delord, Henri Weimerskirch, Jérémy Tornos, Christophe Barbraud, Thierry Boulinier file  doi
openurl 
  Title Exposure of breeding albatrosses to the agent of avian cholera: dynamics of antibody levels and ecological implications Type Journal
  Year 2019 Publication Oecologia Abbreviated Journal  
  Volume 189 Issue 4 Pages 939-949  
  Keywords Capture–mark–recapture Disease ecology Immuno-ecology Maternal antibodies Seabird Serological dynamics Survival  
  Abstract Despite critical implications for disease dynamics and surveillance in wild long-lived species, the immune response after exposure to potentially highly pathogenic bacterial disease agents is still poorly known. Among infectious diseases threatening wild populations, avian cholera, caused by the bacterium Pasteurella multocida, is a major concern. It frequently causes massive mortality events in wild populations, notably affecting nestlings of Indian yellow-nosed albatrosses (Thalassarche carteri) in the Indian Ocean. If adults are able to mount a long-term immune response, this could have important consequences regarding the dynamics of the pathogen in the local host community and the potential interest of vaccinating breeding females to transfer immunity to their offspring. By tracking the dynamics of antibodies against P. multocida during 4 years and implementing a vaccination experiment in a population of yellow-nosed albatrosses, we show that a significant proportion of adults were naturally exposed despite high annual survival for both vaccinated and non-vaccinated individuals. Adult-specific antibody levels were thus maintained long enough to inform about recent exposure. However, only low levels of maternal antibodies could be detected in nestlings the year following a vaccination of their mothers. A modification of the vaccine formulation and the possibility to re-vaccinate females 2 years after the first vaccination revealed that vaccines have the potential to elicit a stronger and more persistent response. Such results highlight the value of long-term observational and experimental studies of host exposure to infectious agents in the wild, where ecological and evolutionary processes are likely critical for driving disease dynamics.  
  Programme 109,1151  
  Campaign  
  Address  
  Corporate Author Thesis Bachelor's thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1432-1939 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 7474  
Permanent link to this record
 

 
Author Pardo Deborah, Barbraud Christophe, Weimerskirch Henri, pdf  doi
openurl 
  Title Females better face senescence in the wandering albatross Type Journal Article
  Year 2013 Publication OECOLOGIA Abbreviated Journal Oecologia  
  Volume 173 Issue 4 Pages 1283-1294  
  Keywords Breeding probability, Breeding success, Diomedea exulans, Ecology, Plant Sciences, Seabird, Senescence, Sexual dimorphism, Survival,  
  Abstract Sex differences in lifespan and aging are widespread among animals. Since investment in current reproduction can have consequences on other life-history traits, the sex with the highest cost of breeding is expected to suffer from an earlier and/or stronger senescence. This has been demonstrated in polygynous species that are highly dimorphic. However in monogamous species where parental investment is similar between sexes, sex-specific differences in aging patterns of life-history traits are expected to be attenuated. Here, we examined sex and age influences on demographic traits in a very long-lived and sexually dimorphic monogamous species, the wandering albatross (Diomedea exulans). We modelled within the same model framework sex-dependent variations in aging for an array of five life-history traits: adult survival, probability of returning to the breeding colony, probability of breeding and two measures of breeding success (hatching and fledging). We show that life-history traits presented contrasted aging patterns according to sex whereas traits were all similar at young ages. Both sexes exhibited actuarial and reproductive senescence, but, as the decrease in breeding success remained similar for males and females, the survival and breeding probabilities of males were significantly more affected than females. We discuss our results in the light of the costs associated to reproduction, age-related pairing and a biased operational sex-ratio in the population leading to a pool of non-breeders of potentially lower quality and therefore more subject to death or breeding abstention. For a monogamous species with similar parental roles, the patterns observed were surprising and when placed in a gradient of observed age/sex-related variations in life-history traits, wandering albatrosses were intermediate between highly dimorphic polygynous and most monogamous species.  
  Programme 109  
  Campaign  
  Address  
  Corporate Author Thesis Bachelor's thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0029-8549 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 4411  
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Author Harding Ann, Welcker Jorg, Steen Harald, Hamer Keith, Kitaysky Alexander, Fort Jérôme, Talbot Sandra, Cornick Leslie, Karnovsky Nina, Gabrielsen Geir, Grémillet David, pdf  doi
openurl 
  Title Adverse foraging conditions may impact body mass and survival of a high Arctic seabird Type Journal Article
  Year 2011 Publication Oecologia Abbreviated Journal  
  Volume 167 Issue 1 Pages 49-59  
  Keywords Biomedical and Life Sciences,  
  Abstract Tradeoffs between current reproduction and future survival are widely recognized, but may only occur when food is limited: when foraging conditions are favorable, parents may be able to reproduce without compromising their own survival. We investigated these tradeoffs in the little auk ( Alle alle ), a small seabird with a single-egg clutch. During 20052007, we examined the relationship between body mass and survival of birds breeding under contrasting foraging conditions at two Arctic colonies. We used corticosterone levels of breeding adults as a physiological indicator of the foraging conditions they encountered during each reproductive season. We found that when foraging conditions were relatively poor (as reflected in elevated levels of corticosterone), parents ended the reproductive season with low body mass and suffered increased post-breeding mortality. A positive relationship between body mass and post-breeding survival was found in one study year; light birds incurred higher survival costs than heavy birds. The results of this study suggest that reproducing under poor foraging conditions may affect the post-breeding survival of long-lived little auks. They also have important demographic implications because even a small change in adult survival may have a large effect on populations of long-lived species.  
  Programme 388  
  Campaign  
  Address  
  Corporate Author Thesis Bachelor's thesis  
  Publisher Springer Berlin / Heidelberg Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0029-8549 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 3509  
Permanent link to this record
 

 
Author Laura Mary, Vincent Zvénigorosky, Alexey Kovalev, Angéla Gonzalez, Jean-Luc Fausser, Florence Jagorel, Marina Kilunovskaya, Vladimir Semenov, Eric Crubézy, Bertrand Ludes, Christine Keyser file  doi
openurl 
  Title Genetic kinship and admixture in Iron Age Scytho-Siberians Type Journal
  Year 2019 Publication Human Genetics Abbreviated Journal  
  Volume 138 Issue 4 Pages 411-423  
  Keywords  
  Abstract Scythians are known from written sources as horse-riding nomadic peoples who dominated the Eurasian steppe throughout the Iron Age. However, their origins and the exact nature of their social organization remain debated. Three hypotheses prevail regarding their origins that can be summarized as a “western origin”, an “eastern origin” and a “multi-regional origin”. In this work, we first aimed to address the question of the familial and social organization of some Scythian groups (Scytho-Siberians) by testing genetic kinship and, second, to add new elements on their origins through phylogeographical analyses. Twenty-eight Scythian individuals from 5 archeological sites in the Tuva Republic (Russia) were analyzed using autosomal Short Tandem Repeats (STR), Y-STR and Y-SNP typing as well as whole mitochondrial (mtDNA) genome sequencing. Familial relationships were assessed using the Likelihood Ratio (LR) method. Thirteen of the 28 individuals tested were linked by first-degree relationships. When related, the individuals were buried together, except for one adult woman, buried separately from her mother and young sister. Y-chromosome analysis revealed a burial pattern linked to paternal lineages, with men bearing closely related Y-haplotypes buried on the same sites. Inversely, various mtDNA lineages can be found on each site. Y-chromosomal and mtDNA haplogroups were almost equally distributed between Western and Eastern Eurasian haplogroups. These results suggest that Siberian Scythians were organized in patrilocal and patrilineal societies with burial practices linked to both kinship and paternal lineages. It also appears that the group analyzed shared a greater genetic link with Asian populations than Western Scythians did.  
  Programme 1038  
  Campaign  
  Address  
  Corporate Author Thesis Bachelor's thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1432-1203 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 7527  
Permanent link to this record
 

 
Author Poitrasson Franck, Delpech Guillaume, Grégoire Michel, doi  openurl
  Title On the iron isotope heterogeneity of lithospheric mantle xenoliths: implications for mantle metasomatism, the origin of basalts and the iron isotope composition of the Earth Type Journal Article
  Year 2013 Publication CONTRIBUTIONS TO MINERALOGY AND PETROLOGY Abbreviated Journal  
  Volume 165 Issue 6 Pages 1243-1258  
  Keywords Geology, Iron isotopes, Mantle peridotites, Melt extraction, Metasomatism, Mineralogy, Mineral Resources,  
  Abstract  
  Programme 1077  
  Campaign  
  Address  
  Corporate Author Thesis Bachelor's thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0010-7999 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 4445  
Permanent link to this record
 

 
Author Agosta Cécile, Favier Vincent, Krinner Gerhard, Gallée Hubert, Fettweis Xavier, Genthon Christophe, doi  openurl
  Title High-resolution modelling of the Antarctic surface mass balance, application for the twentieth, twenty first and twenty second centuries Type Journal Article
  Year 2013 Publication CLIMATE DYNAMICS Abbreviated Journal  
  Volume 41 Issue 11-12 Pages 3247-3260-  
  Keywords Downscaling, Surface mass balance, Surface energy balance, Orographic precipitation, Antarctica, Sea-level, Climate-change, Ice-sheet,  
  Abstract About 75 % of the Antarctic surface mass gain occurs over areas below 2,000 m asl, which cover 40 % of the grounded ice-sheet. As the topography is complex in many of these regions, surface mass balance modelling is highly dependent on horizontal resolution, and studying the impact of Antarctica on the future rise in sea level requires physical approaches. We have developed a computationally efficient, physical downscaling model for high-resolution (15 km) long-term surface mass balance (SMB) projections. Here, we present results of this model, called SMHiL (surface mass balance high-resolution downscaling), which was forced with the LMDZ4 atmospheric general circulation model to assess Antarctic SMB variability in the twenty first and the twenty second centuries under two different scenarios. The higher resolution of SMHiL better reproduces the geographical patterns of SMB and increase significantly the averaged SMB over the grounded ice-sheet for the end of the twentieth century. A comparison with more than 3200 quality-controlled field data shows that LMDZ4 and SMHiL reproduce the observed values equally well. Nevertheless, field data below 2,000 m asl are too scarce to efficiently show the added value of SMHiL and measuring the SMB in these undocumented areas should be a future scientific priority. Our results suggest that running LMDZ4 at a finer resolution (15 km) may give a future increase in SMB in Antarctica that is about 30 % higher than by using its standard resolution (60 km) due to the higher increase in precipitation in coastal areas at 15 km. However, a part (~15 %) of these discrepancies could be an artefact from SMHiL since it neglects the foehn effect and likely overestimates the precipitation increase. Future changes in the Antarctic SMB at low elevations will result from the competition between higher snow accumulation and runoff. For this reason, developing downscaling models is crucial to represent processes in sufficient detail and correctly model the SMB in coastal areas.  
  Programme 411,1013  
  Campaign  
  Address  
  Corporate Author Thesis Bachelor's thesis  
  Publisher Springer Berlin Heidelberg Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0930-7575 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 4768  
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