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. (2021). Surface ocean microbiota determine cloud precursors (Vol. 11).
Abstract: One pathway by which the oceans influence climate is via the emission of sea spray that may subsequently influence cloud properties. Sea spray emissions are known to be dependent on atmospheric and oceanic physicochemical parameters, but the potential role of ocean biology on sea spray fluxes remains poorly characterized. Here we show a consistent significant relationship between seawater nanophytoplankton cell abundances and sea-spray derived Cloud Condensation Nuclei (CCN) number fluxes, generated using water from three different oceanic regions. This sensitivity of CCN number fluxes to ocean biology is currently unaccounted for in climate models yet our measurements indicate that it influences fluxes by more than one order of magnitude over the range of phytoplankton investigated.
Keywords: Atmospheric science Marine biology
Programme: 1187
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Karl-Ludwig Klein. (2021). Radio Astronomical Tools for the Study of Solar Energetic Particles II.Time-Extended Acceleration at Subrelativistic and Relativistic Energies (Vol. 7).
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Karl-Ludwig Klein. (2021). Radio Astronomical Tools for the Study of Solar Energetic Particles I. Correlations and Diagnostics of Impulsive Acceleration and Particle Propagation (Vol. 7).
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L A Ermert, K Sager, T Nissen-Meyer, A Fichtner. (2021). Multifrequency inversion of global ambient seismic sources (Vol. 225).
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. (2021). Human influence on brown trout juvenile body size during metapopulation expansion (Vol. 17).
Abstract: Change in body size can be driven by social (density) and non-social (environmental and spatial variation) factors. In expanding metapopulations, spatial sorting by means of dispersal on the expansion front can further drive the evolution of body size. However, human intervention can dramatically affect these founder effects. Using long-term monitoring of the colonization of the remote Kerguelen islands by brown trout, a facultative anadromous salmonid, we analyse body size variation in 32 naturally founded and 10 human-introduced populations over 57 years. In naturally founded populations, we find that spatial sorting promotes slow positive changes in body size on the expansion front, then that body size decreases as populations get older and local density increases. This pattern is, however, completely different in human-introduced populations, where body size remains constant or even increases as populations get older. The present findings confirm that changes in body size can be affected by metapopulation expansion, but that human influence, even in very remote environments, can fully alter this process.
Keywords: brown trout density dependence dispersal invasion biology subantarctic
Programme: 1041
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Lara D. Shepherd, Colin M. Miskelly, Yves Cherel, Alan J. D. Tennyson. (2021). Genetic identification informs on the distributions of vagrant Royal (Eudyptes schlegeli) and Macaroni (Eudyptes chrysolophus) Penguins (Vol. 44).
Keywords: Antarctica Eudyptes chrysolophus Eudyptes schlegeli Genetic identification Penguin distribution Predation
Programme: 109
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. (2021). Transit timings variations in the three-planet system: TOI-270 (Vol. 510).
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Lavrillier A. (2021). Le pas léger sur la Terre des peuples des neiges.
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Lavrillier, A., Gabyshev S. (2021). A Siberian Indigenous Knowledge System for Understanding Climate Change (Vol. II).
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Le Moan E. (2021).
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