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Clara Ruiz Gonzalez Abstract

Connecting microbial communities: The dispersal of taxa as a major factor shaping aquatic bacterioplankton assemblages

Clara Ruiz-González, Institut de Ciències del Mar (ICM-CSIC), Barcelona, Spain

Bacteria are major players in marine and inland waters, but how variations in taxonomic composition impact their role in ecosystems remains unclear. This is partly because bacterial communities harbour thousands of taxa with very different lifestyles, persistence and dispersal capacities. Although the advent of sequencing technologies has fostered our understanding of the processes and factors shaping bacterial assemblages, there are still limitations among microbial ecology studies: e.g., most research is ecosystem-specific, neglecting the dispersal of microbes across different habitats or local communities. During the past years we have explored the biogeography of bacteria considering this potential connectivity among communities, unveiling a major role of microbial dispersal in fresh- and marine waters: We have shown that boreal lakes and rivers are strongly influenced by the transport of taxa from the surrounding terrestrial landscape, and that deep ocean communities seem largely structured by the sinking of surface microbes attached to particles. In addition, by modelling the spatial distribution of individual bacterial taxa, we have identified specific behaviours within aquatic prokaryotes, which can in turn be used to understand underlying processes linked to local selection or passive dispersal, or how environmental fluctuations regulate the relative abundances of generalist and specialist taxa across communities.

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L’Associazione Italiana di Oceanologia e Limnologia (AIOL) è stata fondata il 27 giugno 1972 per favorire, per mezzo di contatti scientifici, la collaborazione tra studiosi delle diverse discipline … Read More about Mission

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Nel corso del XXV Congresso online (30 giugno – 2 luglio 2021) è stato eletto il nuovo Consiglio di Presidenza dell'AIOL Il nuovo CdP, costituito da Presidente, Vicepresidente e Consiglieri, rimarrà … Read More about Chi Siamo

Advances in Oceanography and Limnology

Advances in Oceanography and Limnology Advances in Oceanography and Limnology (AIOL Journal) is the official publication of the Italian Association of Limnology and Oceanology … Read More about Advances in Oceanography and Limnology

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