Interactions between soil microbes and native species drive a diversity-invasibility relationship
Description
Soil microbes can affect both the invasiveness of exotic plants and the invasibility of native plant communities, but it still remains unclear whether soil microbes can influence the relationship between native plant species diversity and community invasibility. We constructed native plant communities with three levels of species richness (one, three, or six species) in un-sterilized or sterilized soil (i.e., with or without soil microbes) and let them not be invaded by exotic plant species or invaded by one of three exotic species (Solidago canadensis, Erigeron canadensis or Symphyotrichum subulatum) highly invasive in China. The soils conditioned by the native plant communities not invaded by the exotic species were used as soil microbe inocula to test whether richness-induced differences in soil microbes affect the growth of each of the three invasive species. Compared with the presence of soil microbes, the absence of soil microbes weakened the negative species richness-invasibility relationship, indicating that soil microbes can contribute to the higher invasion resistance of more diverse native plant communities. In the presence of soil microbes, the higher invasion resistance of more diverse communities was mainly ascribed to the complementarity effect. However, soil microbes from communities with a higher species richness did not have a stronger negative effect on the growth of any of the three invasive species. We conclude that soil microbes can alter the diversity-invasibility relationship through promoting the complementarity effect on the community invasion resistance. Our results highlight the importance to integrate the role of soil microbes in testing the diversity-invasibility hypothesis.
Notes
Exp1: Colume D-M for plot with invasive species Solidago canadensis(SC)
Colume N-W for plot with invasive species Erigeron canadensis(EC)
Colume X-G for plot with invasive species Symphyotrichum subulatum(SS)
Exp2: Colume AH-AO
Funding provided by: National Natural Science Foundation of China
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100001809
Award Number: 31870504
Funding provided by: Basic Public Welfare Research Projects of Zhejiang Province*
Crossref Funder Registry ID:
Award Number: LGN19C150004
Funding provided by: Outstanding Youth Program of Taizhou University*
Crossref Funder Registry ID:
Award Number: 2017JQ005
Funding provided by: National Innovation and Entrepreneurship Program for College Students*
Crossref Funder Registry ID:
Award Number: 202010350035
Funding provided by: Natural Science Foundation of Zhejiang Province
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100004731
Award Number: LY22C030001
Funding provided by: Taizhou Science and Technology Project
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100018552
Award Number: 21hba02
Funding provided by: National Natural Science Foundation of China
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100001809
Award Number: 41671254
Funding provided by: National Natural Science Foundation of China
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100001809
Award Number: 317611123001
Funding provided by: Outstanding Youth Program of Taizhou University*
Crossref Funder Registry ID:
Award Number: 2019JQ005
Funding provided by: National Innovation and Entrepreneurship Program for College Students*
Crossref Funder Registry ID:
Award Number: 202110350025
Funding provided by: National Innovation and Entrepreneurship Program for College Students*
Crossref Funder Registry ID:
Award Number: 202110350024
Funding provided by: Natural Science Foundation of Zhejiang Province
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100004731
Award Number: LTY22C030004
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Additional details
Related works
- Is cited by
- 10.1007/s10530-022-02988-z (DOI)