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. (2013). PLoS ONE, 8(9), e74154–.
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. (2013). Patterns, processes and vulnerability of Southern Ocean benthos: a decadal leap in knowledge and understanding
. Mar. Biol., 160(9), 2295–2317-.
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. (2013). Reassessing the variability in atmospheric H2 using the two-way nested TM5 model
. J. Geophys. Res., 118(9), 3764–3780.
Keywords: Hydrogen isotopes, Molecular hydrogen, Chemical Transport Model, Tropospheric budget, Dry deposition, Sources and sinks, 0368 Troposphere: constituent transport and chemistry, 0365 Troposphere: composition and chemistry, 0322 Constituent sources and sinks, 0315 Biosphere/atmosphere interactions, 0317 Chemical kinetic and photochemical properties,
Programme: 416
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. (2014). Heat fluxes across the Antarctic Circumpolar Current in Drake Passage: Mean flow and eddy contributions
. Journal of Geophysical Research: Oceans, 119(9), 6381–6402.
Keywords: Antarctic Circumpolar Current, heat fluxes, Drake Passage, current meter moorings, high-resolution model, 4532 General circulation,
Programme: 1061
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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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. (2015). Mates but not sexes differ in migratory niche in a monogamous penguin species
. Biology Letters, 11(9), 20150429.
Abstract: Strong pair bonds generally increase fitness in monogamous organisms, but may also underlie the risk of hampering it when re-pairing fails after the winter season. We investigated whether partners would either maintain contact or offset this risk by exploiting sex-specific favourable niches during winter in a migratory monogamous seabird, the southern rockhopper penguin Eudyptes chrysocome. Using light-based geolocation, we show that although the spatial distribution of both sexes largely overlapped, pair-wise mates were located on average 595 {+/-} 260 km (and up to 2500 km) apart during winter. Stable isotope data also indicated a marked overlap between sex-specific isotopic niches ({delta}13C and{delta} 15N values) but a segregation of the feeding habitats ({delta}13C values) within pairs. Importantly, the tracked females remained longer (12 days) at sea than males, but all re-mated with their previous partners after winter. Our study provides multiple evidence that migratory species may well demonstrate pair-wise segregation even in the absence of sex-specific winter niches (spatial and isotopic). We suggest that dispersive migration patterns with sex-biased timings may be a sufficient proximal cause for generating such a situation in migratory animals.
Programme: 394
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Louise Day, Joffrey Jouma'a, Julien Bonnel, Christophe Guinet. (2017). Acoustic measurements of post-dive cardiac responses in southern elephant seals (Mirounga leonina) during surfacing at sea (Vol. 220).
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Jeanniard?du?Dot Tiphaine, Trites Andrew W., Arnould John P. Y., Speakman John R., Guinet Christophe. (2017). (Vol. 7).
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Louise Day, Joffrey Jouma'a, Julien Bonnel, Christophe Guinet. (2017). Acoustic measurements of post-dive cardiac responses in southern elephant seals (Mirounga leonina) during surfacing at sea (Vol. 220).
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Tiphaine Jeanniard?du?Dot, Andrew W. Trites, John P. Y. Arnould, John R. Speakman, Christophe Guinet. (2017). (Vol. 7).
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