Yang, Tianjie, Han, Gang, Yang, Qingjun et al. (7 more authors) (2018) Resource stoichiometry shapes community invasion resistance via productivity-mediated species identity effects. Proceedings of the Royal Society B: Biological Sciences. ISSN 1471-2954
Abstract
The diversity-invasion resistance relationships are often variable and sensitive to environmental conditions such as resource availability. Resource stoichiometry, the relative concentration of different elements in the environment, has been shown to have strong effects on the physiology and interactions between different species. Yet, its role for diversity-invasion resistance relationships is still poorly understood. Here we explored how the ratio of nitrogen and phosphorus affect the productivity and invasion resistance of constructed microbial communities by plant pathogenic bacterium, Ralstonia solanacearum. We found that resource stoichiometry and species identity effects affected the invasion resistance of communities. Both high nitrogen concentration and resident community diversity constrained invasions, and two resident species, in particular, had strong negative effects on the relative density of the invader and the resident community productivity. While resource stoichiometry did not affect the mean productivity of the resident community, it favored the growth of two species that strongly constrained invasions turning the slope of productivity-invasion resistance relationship more negative. Together our findings suggest that alterations in resource stoichiometry can change the community resistance to invasions by having disproportionate effects on species growth 37 potentially explaining changes in microbial community composition under 38 eutrophication.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. |
Dates: |
|
Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Biology (York) |
Depositing User: | Pure (York) |
Date Deposited: | 21 Nov 2018 09:40 |
Last Modified: | 16 Oct 2024 15:16 |
Published Version: | https://doi.org/10.1098/rspb.2018.2035 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1098/rspb.2018.2035 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:138880 |
Download
Filename: Friman_system_appendPDF_proof_hi_2_.pdf
Description: Friman - _system_appendPDF_proof_hi(2)