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Author |
Kauffmann M
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Title |
Relations hôte-parasite chez le manchot royal et la tique Ixodes uriae, DU Université de Pau et des Pays de l'Adour |
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2012 |
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Parasites act at both individual and population level on their host. Their potential
effect on individual host physiology and behavior can affect (usually negatively if they are
parasites) host fitness and therefore induce a selection in host population of parasiteresistant
traits. Hence the key role occupied by parasites in most ecosystems. We undertook
a first step towards comprehension of the host-parasite relationship in king penguin
Aptenodytes patagonicus and tick Ixodes uriae, by trying to assess the effect of tick
infestation on individual king penguins during reproduction. 61 king penguin pairs breeding
either in a non infested area (ZNI) or in an infested area (ZI) of the colony were submitted
either to an anti-parasitic treatment or to a control treatment at the onset of incubation.
The treatment brought the tick load close to zero in the treated group. In ZI, body condition
which was measured several times along the incubation period was higher in treatment
birds. Also offspring growth during the first month of life was significantly more important in
treatment birds compared to control, which resulted in larger 1-month-old chicks in the
treated group. These results show the significant effect of Ixodes uriae on an individual
physiology and its offspring, potentially affecting its reproductive success thus its fitness. A
longer term offspring monitoring should allow a better assessment of the effect of Ixodes
uriae on king penguin fitness. |
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4173 |
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Author |
Ambroise Dufour |
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Title |
Statistics of Precipitations on the Antarctic Plateau |
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2012 |
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Paris school of mines engineer thesis report
Abstract: Precipitation in the interior of the Antarctic continent plays a crucial role in the mass balance of the ice-sheet. Nevertheless, few observations have been made to quantify the snowfall and it is not clear how accurately the phenomenon is reproduced by climate models. For these reasons, a disdrometer (VPF-730, Biral) was set up on the Antarctic Plateau in 2009 at the French-Italian station Concordia. The observations were compared to a limited area model and a meteorological reanalysis. To account for the important di erences between observations and models, a cluster analysis was performed on the disdrometer data. This method allowed to separate artefacts from actual snow events and to distinguish snow events among themselves. If the artefacts are excluded from the dataset, the agreement with the models is improved, at least in terms of the timing of events. A recalibration for speci c snow types could potentially yield information on the magnitude of the events as well.
Can be downloaded at http://www-lgge.obs.ujf-grenoble.fr/~christo/calva/reports/Rapport_AmbroiseDufour.pdf |
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1013 |
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4203 |
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H. Gallée and C. genthon |
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Evaluation of uncertainties on the surface mass balance (SMB) of Antarctica and related contribution to sea-level. A contribution of WP2.4 to WP6 |
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2012 |
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IC2SEA report
Available at http://www-lgge.obs.ujf-grenoble.fr/~christo/calva/reports/Evaluation-smbGalleeGenthonIce2sea.pdf |
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4204 |
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Author |
Favier V., D. Brunstein, D. Verfaillie |
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Title |
Rapport de mission GLACIOCLIM-KESAACO |
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2013 |
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1048 |
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4302 |
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Constable A., Koubbi P., Siegel V., Melbourne-Thomas J. |
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Informations scientifiques à la base de la proposition de système représentatif d'aires marines protégées de l'Antarctique de l'Est |
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2013 |
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SC-CAMLR-IM-I/10 |
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28 pp |
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1142 |
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4316 |
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Constable A., Koubbi P., Siegel V., Melbourne-Thomas J. |
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Existing initiatives that provide an extensive framework for research and monitoring in East Antarctica |
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2013 |
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SC-CAMLR-IM-I/BG/01 |
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13 pp |
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1142 |
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4317 |
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Author |
Lucile Bovet and Laure Cattin |
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Title |
SEXUAL SELECTION IN A MONOMORPHIC SPECIES : DO COLOR ORNAMENTS REFLECT SIMILAR QUALITIES IN MALE AND FEMALE KING PENGUINS ? First step report, Université de Lausanne |
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4357 |
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Author |
Viblanc V. A. |
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Title |
Sexual ornaments and individual quality: what makes a ‘sexy’ sex in monomorphic king penguin (Aptenodytes patagonicus)?
FYSSEN Foundation Post-Â‐Doctoral Fellowship 2011-Â2012
Fellow: V. A. Viblanc / Advisor: Bize P. [Department of Ecology & Evolution University of Lausanne (Switzerland)] |
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4394 |
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Author |
Jean-Yves Toullec |
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Le krill sous toutes ses latitudes. Rapport d'activité IPEV 2012-13 |
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4581 |
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Author |
C. Genthon |
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Rapport de mission glacioclim |
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2013 |
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4599 |
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