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Renault D., Ouisse T., Laparie M. (2015). Metabolomic responses to thermal acclimation in a subpolar carabid beetle currently invading sub-Antarctic islands. 6th International Symposium on the Environmental Physiology of Ectotherms and Plant, Aahrus, Denmark, 03-06/08/2015.
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Domine F, Barrere M, Sarrazin D, Morin S, Arnaud L, . (2015). Automatic monitoring of the effective thermal conductivity of snow in a low-Arctic shrub tundra
. TC, 9(3), 1265–1276.
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Labarrere B., Prinzing A., Chesneau E. & Hennion F. (2015). Polyamine variation across natural gradients and influence on plant development in subantarctic plant species.
2015 Society for Experimental Biology Annual Meeting, Prague, Czech Republic, 30th June- 03rd July..
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. (2015). Long-lasting modification of soil fungal diversity associated with the introduction of rabbits to a remote sub-Antarctic archipelago.
. Biol. Lett., 11(9), 20150408.
Abstract: During the late nineteenth century, Europeans introduced rabbits to many of the sub-Antarctic islands, environments that prior to this had been devoid of mammalian herbivores. The impacts of rabbits on indigenous ecosystems are well studied; notably, they cause dramatic changes in plant communities and promote soil erosion. However, the responses of fungal communities to such biotic disturbances remain unexplored. We used metabarcoding of soil extracellular DNA to assess the diversity of plant and fungal communities at sites on the sub-Antarctic Kerguelen Islands with contrasting histories of disturbance by rabbits. Our results suggest that on these islands, the simplification of plant communities and increased erosion resulting from the introduction of rabbits have driven compositional changes, including diversity reductions, in indigenous soil fungal communities. Moreover, there is no indication of recovery at sites from which rabbits were removed 20 years ago. These results imply that introduced herbivores have long-lasting and multifaceted effects on fungal biodiversity as well as highlight the low resiliency of sub-Antarctic ecosystems.
Programme: 136,1116
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A. Stier, Q. Schull, V. Viblanc, D. Roussel, J.-P. Robin, P. Bize & F. Criscuolo . (2015).
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V. A. Viblanc, Q. Schull, F. Stephen Dobson P. Bize & J-P. Robin. (2015).
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Q. Schull, V. A. Viblanc, A. Stier, L. Durand, E. Lefol, P. Bize & J-P. Robin. (2015). Sexual selection and individual quality: do parental colour ornaments predict chick growth in monogamous King Penguins Aptenodytes patagonicus? 10th Conference of the European Ornithological Union, 24-28 August 2015, Badajoz (Spain).
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Q. Schull., F. S. Dobson, A. Stier, F. Criscuolo, E. Lefol, H. Saadaoui, J-P. Robin, P. Bize, V. A. Viblanc. (2015).
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. (2015). On the origin of relativistic solar particle events: interplanetary transport modelling and radio emission (34th Internat Cosmic Ray Conference, The Hague).
Abstract: The highest energies of solar energetic nucleons detected in space or through gamma-ray emission in the solar atmosphere are in the GeV range. Where and how these particles are accelerated is still controversial. The candidate processes are related to magnetic reconnection in a flare or a coronal mass ejection (CME), and to the shock wave driven by a fast CME. We search for observational indications on the acceleration site, using the relative timing of radio emissions in the corona and of relativistic protons at the Earth. We model the particle transport under the effects of focussing by an average Archimedean magnetic field and of scattering by its fluctuations, and use radio time profiles as injection functions. The predicted time profiles of the intensity and anisotropy of relativistic protons at 1 AU during the 20 Jan 2005 event are compared with neutron monitor observations. We compare the results with other events and discuss the nature of the prompt and delayed proton releases that have been identified in neutron monitor recordings of relativistic solar particle events.
Programme: 227
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Q. Schull., V. A. Viblanc., F. S. Dobson., A. Stier., F. Criscuolo., E. Lefol., H. Saadaoui., P. Bize.4, J.-P. Robin. (2015).
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