Records |
Author |
PÉRON CLARA, AUTHIER MATTHIEU, BARBRAUD CHRISTOPHE, DELORD KARINE, BESSON DOMINIQUE, WEIMERSKIRCH HENRI, |
Title |
Interdecadal changes in at-sea distribution and abundance of subantarctic seabirds along a latitudinal gradient in the Southern Indian Ocean
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Type |
Journal Article |
Year |
2010 |
Publication |
Global Change Biology |
Abbreviated Journal |
Glob Chang Biol |
Volume |
16 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
1895 -1909 |
Keywords |
at-sea survey, Bayesian, climate change, mixture model, populations trends, Procellariiform, zero inflation, |
Abstract |
Abstract Long-term demographic studies have recently shown that global climate change together with increasing direct impacts of human activities, such as fisheries, are affecting the population dynamics of marine top predators. However, the effects of these factors on species distribution and abundance at sea are still poorly understood, particularly in marine ecosystems of the southern hemisphere. Using a unique long-term data set of at-sea observations, we tested for interdecadal (1980s vs. 2000s) changes in summer abundance and distribution of 12 species of Albatrosses and Petrels along a 30° latitudinal gradient between tropical and Antarctic waters of the southern Indian Ocean. There were contrasting effects of climate change on subantarctic seabird distribution and abundance at sea. While subtropical waters showed the highest rate of warming, the species that visited this water mass showed the greatest changes in distribution and abundance. The abundance of Wandering Albatrosses (Diomedea exulans), White-chinned Petrels (Procellaria aequinoctialis) and Giant Petrels (Macronectes sp.) declined markedly, whereas the other species showed contrasting trends or did not change. With the exception of the White-chinned Petrel, these decreases were at least partly related to regional increase in sea surface temperature. The southward shift of Wandering Albatross and Prions (Pachyptila spp.) distributions could be ascribed to species redistribution or decrease in abundance due to warming of the subtropical waters. Surprisingly, White-chinned Petrel distribution shifted northward, suggesting more complex mechanisms. This study is the first to document a shift in species range in the Southern Ocean related to climate change and contrasting abundance changes. It suggests that some species might experience more severe impacts from climate change depending on the water masses they visit. As climate changes are predicted to continue in the next decades, understanding species responses to climate change is crucial for conservation management, especially when their conservation status is critical or unknown.
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Programme |
109 |
Campaign |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
Blackwell Publishing Ltd |
Place of Publication |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1365-2486 |
ISBN |
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Medium |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
Call Number |
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Serial |
358 |
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Author |
Marchandeau S, Bertagnoli S, Léonard Y, Santin-Janin H, Péralta B, Le Gall-Reculé G, Pontier D, |
Title |
Serological evidence for the presence of non-pathogenic rabbit haemorrhagic disease virus-like strains in rabbits (Oryctolagus cuniculus) of the Kerguelen archipelago |
Type |
Journal Article |
Year |
2010 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
Volume |
33 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
985-989 -989 |
Keywords |
Biomedical and Life Sciences, |
Abstract |
Antibodies raised against a Lagovirus were found in healthy rabbits Oryctolagus cuniculus sampled in 2003 and 2004 in the Kerguelen archipelago. The serological test we used enabled the detection of antibodies due to both pathogenic and non-pathogenic viruses related to the rabbit haemorrhagic disease virus (RHDV). The overall proportion of seropositive rabbits was 35% and differed between sites. Since previous studies have failed to detect antibodies raised against pathogenic RHDV strains, the antibodies detected in the present study were likely due to non-pathogenic strains. The interest of these strains circulating in the Kerguelen archipelago is that they have evolved independently of those detected in the other parts of the world and should derive from an ancestral RHDV precursor. Their characterization may help understanding the evolution of the virus and the emergence of the disease. |
Programme |
279 |
Campaign |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
Springer Berlin / Heidelberg |
Place of Publication |
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Editor |
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Original Title |
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Series Editor |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0722-4060 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
Call Number |
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Serial |
516 |
Permanent link to this record |
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Author |
ROLLAND VIRGINIE, Weimerskirch Henri, BARBRAUD CHRISTOPHE, |
Title |
Relative influence of fisheries and climate on the demography of four albatross species
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Type |
Journal Article |
Year |
2009 |
Publication |
Global Change Biology |
Abbreviated Journal |
Glob Chang Biol |
Volume |
16 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
1910 -1922 |
Keywords |
2009, accepted 22 august, breeding success, climate, longlining, received 16 june 2009, seabird, survival, |
Abstract |
Worldwide ecosystems are modified by human activities and climate change. To be able to predict future changes, it is necessary to understand their respective role on population dynamics. Among the most threatened species are top predators because of their position in the food web. Albatross populations are potentially affected by both human activities, especially longline fisheries, and climatic fluctuations. Based on long-term data (198520132006), we conducted through a comparative approach a demographic analysis (adult survival and breeding success) on four albatross species breeding on the Indian Ocean sub-Antarctic Islands to assess the relative impact of climate and fisheries during and outside the breeding season. The study revealed that adult survival of almost all species was not affected by climate, and therefore probably canalized against climatic variations, but was negatively affected by tuna longlining effort in three species. Breeding success was affected by climate, with contrasted effects between species, with Southern Oscillation Index having an impact on all species but one. Differences in demographic responses depended on the foraging zone and season. In order to predict population trajectories of seabirds such as albatrosses, our results show the importance of assessing the relative influence of fishing and climate impacts on demography.
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Programme |
109 |
Campaign |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Original Title |
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Series Editor |
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Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1354-1013 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
Call Number |
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Serial |
1929 |
Permanent link to this record |
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Author |
ROLLAND VIRGINIE, WEIMERSKIRCH HENRI, BARBRAUD CHRISTOPHE, |
Title |
Relative influence of fisheries and climate on the demography of four albatross species
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Type |
Journal Article |
Year |
2010 |
Publication |
Global Change Biology |
Abbreviated Journal |
Glob Chang Biol |
Volume |
16 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
1910-1922 |
Keywords |
breeding success, climate, longlining, seabird, survival, |
Abstract |
Worldwide ecosystems are modified by human activities and climate change. To be able to predict future changes, it is necessary to understand their respective role on population dynamics. Among the most threatened species are top predators because of their position in the food web. Albatross populations are potentially affected by both human activities, especially longline fisheries, and climatic fluctuations. Based on long-term data (19852006), we conducted through a comparative approach a demographic analysis (adult survival and breeding success) on four albatross species breeding on the Indian Ocean sub-Antarctic Islands to assess the relative impact of climate and fisheries during and outside the breeding season. The study revealed that adult survival of almost all species was not affected by climate, and therefore probably canalized against climatic variations, but was negatively affected by tuna longlining effort in three species. Breeding success was affected by climate, with contrasted effects between species, with Southern Oscillation Index having an impact on all species but one. Differences in demographic responses depended on the foraging zone and season. In order to predict population trajectories of seabirds such as albatrosses, our results show the importance of assessing the relative influence of fishing and climate impacts on demography.
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Programme |
109 |
Campaign |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
Blackwell Publishing Ltd |
Place of Publication |
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Editor |
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Original Title |
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Series Editor |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1365-2486 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
Call Number |
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Serial |
3066 |
Permanent link to this record |
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Author |
Carole Ferret |
Title |
Kazakhs et Kirghizes |
Type |
Journal Article |
Year |
2010 |
Publication |
La revue. Politiques, économies, cultures |
Abbreviated Journal |
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Volume |
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Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
109 |
Keywords |
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Abstract |
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Programme |
1057 |
Campaign |
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Address |
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Thesis |
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Publisher |
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Place of Publication |
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Notes |
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Approved |
yes |
Call Number |
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Serial |
3070 |
Permanent link to this record |
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Author |
Charmantier A, Buoro M, Gimenez O, Weimerskirch H, |
Title |
Heritability of short-scale natal dispersal in a large-scale foraging bird, the wandering albatross
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Type |
Journal Article |
Year |
2011 |
Publication |
Journal of Evolutionary Biology |
Abbreviated Journal |
J. Evol. Biol. |
Volume |
24 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
1487-1496 |
Keywords |
Bayesian framework, heritability, liability to disperse, local scale, natal dispersal, seabird, threshold model, |
Abstract |
Natal dispersal is a key life history trait for the evolution and adaptation of wild populations. Although its evolution has repeatedly been related to the social and environmental context faced by individuals, parentoffspring regressions have also highlighted a possible heritable component. In this study, we explore heritability of natal dispersal, at the scale of the sub-Antarctic Possession Island, for a large-scale foraging seabird, the Wandering albatross Diomedea exulans, exploiting a pedigree spanning over four decades and a maximum of four generations. The comparison of three different methods shows that heritability on the liability scale can vary drastically depending on the type of model (heritability from 6% to 86%), with a notable underestimation by restricted maximum likelihood animal models (6%) compared to Bayesian animal models (36%). In all cases, however, our results point to significant additive genetic variance in the individual propensity to disperse, after controlling for substantial effects of sex and natal colony. These results reveal promising evolutionary potential for short-scale natal dispersal, which could play a critical role for the long-term persistence of this species on the long run.
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Programme |
109 |
Campaign |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
Publisher |
Blackwell Publishing Ltd |
Place of Publication |
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Editor |
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Language |
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Original Title |
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Series Editor |
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Series Issue |
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Edition |
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ISSN |
1420-9101 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
Call Number |
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Serial |
3254 |
Permanent link to this record |
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Author |
Gastebois C, Viviant M, Guinet C, |
Title |
Ontogeny of aquatic behaviours in Antarctic fur seal (Arctocephalus gazella) pups in relation to growth performances at Kerguelen Islands
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Type |
Journal Article |
Year |
2011 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
Volume |
34 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
1097-1103 |
Keywords |
Biomedical and Life Sciences, |
Abstract |
In diving marine predators, such as pinnipeds, the development of diving and foraging skills prior to weaning might be critical to post-weaning survival. Here, we examined the effect of pup mass growth on the amount of time devoted to aquatic activities and the dive performance of Antarctic fur seal, Arctocephalus gazella , pups on Kerguelen Island. Maternal attendance and mass-specific growth rate were assessed for 85 pups. Two types of monitoring were applied: visual observations of behaviours for 60 pups and the deployment of time-depth recorders (TDRs) on 19 female pups. At approximately 2 months of age, pups demonstrated minimal diving behaviour, but displayed considerable aquatic activity. While mothers were foraging at sea, pups fasted on land (6.0 ± 1.3 d). As the mass-specific growth rate was different between sexes, only data on female pups were analysed ( n = 31). Mass-specific growth rate was related to maternal attendance patterns and impacted the amount of time allocated by pups to aquatic activities. The time spent in the water by pups was quadratically related to fasting progress. This study shows the importance of growth and fasting progress on the quantity of time pups devoted to aquatic activities. Our results suggest that greater post-weaning survival of heavier pups may be due not only to their greater body reserves, as reported in several studies, but also possibly to from their greater aquatic skills and physiological adaptations developed during the suckling period. |
Programme |
109 |
Campaign |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
Publisher |
Springer Berlin / Heidelberg |
Place of Publication |
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Editor |
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Language |
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Series Editor |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0722-4060 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
Call Number |
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Serial |
3256 |
Permanent link to this record |
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Author |
Thèves Catherine, Senescau Alice, Vanin Stefano, Keyser Christine, Ricaut François Xavier, Alekseev Anatoly N, Dabernat Henri, Ludes Bertrand, Fabre Richard, Crubézy Eric, |
Title |
Molecular Identification of Bacteria by Total Sequence Screening: Determining the Cause of Death in Ancient Human Subjects
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Type |
Journal Article |
Year |
2011 |
Publication |
PLoS ONE |
Abbreviated Journal |
1932-6203 |
Volume |
6 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
e21733- |
Keywords |
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Abstract |
Research of ancient pathogens in ancient human skeletons has been mainly carried out on the basis of one essential historical or archaeological observation, permitting specific pathogens to be targeted. Detection of ancient human pathogens without such evidence is more difficult, since the quantity and quality of ancient DNA, as well as the environmental bacteria potentially present in the sample, limit the analyses possible. Using human lung tissue and/or teeth samples from burials in eastern Siberia, dating from the end of 17th to the 19th century, we propose a methodology that includes the: 1) amplification of all 16S rDNA gene sequences present in each sample; 2) identification of all bacterial DNA sequences with a degree of identity ≥95%, according to quality criteria; 3) identification and confirmation of bacterial pathogens by the amplification of the rpoB gene; and 4) establishment of authenticity criteria for ancient DNA. This study demonstrates that from teeth samples originating from ancient human subjects, we can realise: 1) the correct identification of bacterial molecular sequence signatures by quality criteria; 2) the separation of environmental and pathogenic bacterial 16S rDNA sequences; 3) the distribution of bacterial species for each subject and for each burial; and 4) the characterisation of bacteria specific to the permafrost. Moreover, we identified three pathogens in different teeth samples by 16S rDNA sequence amplification: Bordetella sp., Streptococcus pneumoniae and Shigella dysenteriae. We tested for the presence of these pathogens by amplifying the rpoB gene. For the first time, we confirmed sequences from Bordetella pertussis in the lungs of an ancient male Siberian subject, whose grave dated from the end of the 17th century to the early 18th century. |
Programme |
1038 |
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Publisher |
Public Library of Science |
Place of Publication |
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ISSN |
1932-6203 |
ISBN |
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Approved |
yes |
Call Number |
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Serial |
3378 |
Permanent link to this record |
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Author |
Leclaire Sarah, Merkling Thomas, Raynaud Christine, Giacinti Géraldine, Bessière Jean-Marie, Hatch Scott, Danchin Étienne, |
Title |
An individual and a sex odor signature in kittiwakes? Study of the semiochemical composition of preen secretion and preen down feathers
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Type |
Journal Article |
Year |
2011 |
Publication |
Naturwissenschaften |
Abbreviated Journal |
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Volume |
98 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
615-624 |
Keywords |
Biomedical and Life Sciences, |
Abstract |
The importance of olfaction in birds social behavior has long been denied. Avian chemical signaling has thus been relatively unexplored. The black-legged kittiwake provides a particularly appropriate model for investigating this topic. Kittiwakes preferentially mate with genetically dissimilar individuals, but the cues used to assess genetic characteristics remain unknown. As in other vertebrates, their body odors may carry individual and sexual signatures thus potentially reliably signaling individual genetic makeup. Here, we test whether body odors in preen gland secretion and preen down feathers in kittiwakes may provide a sex and an individual signature. Using gas chromatography and mass spectrometry, we found that male and female odors differ quantitatively, suggesting that scent may be one of the multiple cues used by birds to discriminate between sexes. We further detected an individual signature in the volatile and nonvolatile fractions of preen secretion and preen down feathers. These results suggest that kittiwake body odor may function as a signal associated with mate recognition. It further suggests that preen odor might broadcast the genetic makeup of individuals, and could be used in mate choice to assess the genetic compatibility of potential mates. |
Programme |
1162 |
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Thesis |
Bachelor's thesis |
Publisher |
Springer Berlin / Heidelberg |
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Edition |
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ISSN |
0028-1042 |
ISBN |
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Approved |
yes |
Call Number |
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Serial |
3514 |
Permanent link to this record |
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Author |
Maj Emilie |
Title |
Sibérie. Les Iakoutes |
Type |
Popularization |
Year |
2011 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
110 |
Keywords |
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Abstract |
A popular article about Yakut people today |
Programme |
1024 |
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Approved |
yes |
Call Number |
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Serial |
3647 |
Permanent link to this record |