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

journal contribution
posted on 2023-05-17, 23:13 authored by Wilkins, D, van Sebille, E, Stephen Rintoul, Lauro, FM, Cavicchioli, R
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. © 2013 Macmillan Publishers Limited. All rights reserved.

History

Publication title

Nature Communications

Volume

4

Article number

2457

Number

2457

Pagination

1-7

ISSN

2041-1723

Department/School

Institute for Marine and Antarctic Studies

Publisher

Nature Publishing Group

Place of publication

United Kingdom

Rights statement

copyright 2013 Macmillan Publishers

Repository Status

  • Restricted

Socio-economic Objectives

Assessment and management of coastal and estuarine ecosystems

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