Advection shapes Southern Ocean microbial assemblages independent of distance and environment effects

David Wilkins; Erik Van Sebille; Stephen R. Rintoul; Federico M. Lauro; Ricardo Cavicchioli

doi:10.1038/ncomms3457

Advection shapes Southern Ocean microbial assemblages independent of distance and environment effects

David Wilkins, Erik Van Sebille, Stephen R. Rintoul, Federico M. Lauro, Ricardo Cavicchioli^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

98 Citations (Scopus)

Abstract

Although environmental selection and spatial separation have been shown to shape the distribution and abundance of marine microorganisms, the effects of advection (physical transport) have not been directly tested. Here we examine 25 samples covering all major water masses of the Southern Ocean to determine the effects of advection on microbial biogeography. Even when environmental factors and spatial separation are controlled for, there is a positive correlation between advection distance and taxonomic dissimilarity, indicating that an 'advection effect' has a role in shaping marine microbial community composition. This effect is likely due to the advection of cells increasing the probability that upstream microorganisms will colonize downstream sites. Our study shows that in addition to distance and environmental selection, advection shapes the composition of marine microbial communities.

Original language	English
Article number	2457
Pages (from-to)	1-7
Number of pages	7
Journal	Nature Communications
Volume	4
DOIs	https://doi.org/10.1038/ncomms3457
Publication status	Published - 2013
Externally published	Yes

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10.1038/ncomms3457

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abstract = "Although environmental selection and spatial separation have been shown to shape the distribution and abundance of marine microorganisms, the effects of advection (physical transport) have not been directly tested. Here we examine 25 samples covering all major water masses of the Southern Ocean to determine the effects of advection on microbial biogeography. Even when environmental factors and spatial separation are controlled for, there is a positive correlation between advection distance and taxonomic dissimilarity, indicating that an 'advection effect' has a role in shaping marine microbial community composition. This effect is likely due to the advection of cells increasing the probability that upstream microorganisms will colonize downstream sites. Our study shows that in addition to distance and environmental selection, advection shapes the composition of marine microbial communities.",

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AU - Cavicchioli, Ricardo

PY - 2013

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AB - Although environmental selection and spatial separation have been shown to shape the distribution and abundance of marine microorganisms, the effects of advection (physical transport) have not been directly tested. Here we examine 25 samples covering all major water masses of the Southern Ocean to determine the effects of advection on microbial biogeography. Even when environmental factors and spatial separation are controlled for, there is a positive correlation between advection distance and taxonomic dissimilarity, indicating that an 'advection effect' has a role in shaping marine microbial community composition. This effect is likely due to the advection of cells increasing the probability that upstream microorganisms will colonize downstream sites. Our study shows that in addition to distance and environmental selection, advection shapes the composition of marine microbial communities.

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Advection shapes Southern Ocean microbial assemblages independent of distance and environment effects

Abstract

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