Resource-dependent attenuation of species interactions during bacterial succession

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Title: Resource-dependent attenuation of species interactions during bacterial succession
Author(s): Barraclough, TG
Bell, TDC
Rivett, D
Scheuerl, T
Mombrikotb, S
Culbert, C
Johnstone, E
Item Type: Journal Article
Abstract: Bacterial communities are vital for many economically and ecologically important processes. The role of bacterial community composition in determining ecosystem functioning depends critically on interactions among bacterial taxa. Several studies have shown that, despite a predominance of negative interactions in communities, bacteria are able to display positive interactions given the appropriate evolutionary or ecological conditions. We were interested in how interspecific interactions develop over time in a naturalistic setting of low resource supply rates. We assembled aquatic bacterial communities in microcosms and assayed the productivity (respiration and growth) and substrate degradation while tracking community composition. The results demonstrated that while bacterial communities displayed strongly negative interactions during the early phase of colonisation and acclimatisation to novel biotic and abiotic factors, this antagonism declined over time towards a more neutral state. This was associated with a shift from use of labile substrates in early succession to use of recalcitrant substrates later in succession, confirming a crucial role of resource dynamics in linking interspecific interactions with ecosystem functioning.
Publication Date: 19-Feb-2016
Date of Acceptance: 31-Dec-2015
URI: http://hdl.handle.net/10044/1/29620
DOI: https://dx.doi.org/10.1038/ismej.2016.11
ISSN: 1751-7362
Publisher: Nature Publishing Group
Start Page: 2259
End Page: 2268
Journal / Book Title: ISME Journal
Volume: 10
Copyright Statement: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http:// creativecommons.org/licenses/by/4.0/
Sponsor/Funder: The Royal Society
Commission of the European Communities
Natural Environment Research Council (NERC)
The Royal Society
Funder's Grant Number: UF090325
311399
NE/K006215/1
UF140715
Keywords: Microbiology
06 Biological Sciences
10 Technology
05 Environmental Sciences
Publication Status: Published
Appears in Collections:Faculty of Natural Sciences



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