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Dissecting Solidago canadensis – soil feedback in its real invasion

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ABSTRACT

The importance of plant–soil feedback (PSF) has long been recognized, but the current knowledge on PSF patterns and the related mechanisms mainly stems from laboratory experiments. We aimed at addressing PSF effects on community performance and their determinants using an invasive forb Solidago canadensis. To do so, we surveyed 81 pairs of invaded versus uninvaded plots, collected soil samples from these pairwise plots, and performed an experiment with microcosm plant communities. The magnitudes of conditioning soil abiotic properties and soil biotic properties by S. canadensis were similar, but the direction was opposite; altered abiotic and biotic properties influenced the production of subsequent S. canadensis communities and its abundance similarly. These processes shaped neutral S. canadensis–soil feedback effects at the community level. Additionally, the relative dominance of S. canadensis increased with its ability of competitive suppression in the absence and presence of S. canadensis–soil feedbacks, and S. canadensis‐induced decreases in native plant species did not alter soil properties directly. These findings provide a basis for understanding PSF effects and the related mechanisms in the field conditions and also highlight the importance of considering PSFs holistically.

No MeSH data available.


Related in: MedlinePlus

Competitive tolerance ability of Solidago to native plants in mixtures (i.e., plant communities consisting of Solidago and three Chinese natives) (a) and competitive suppression ability of Solidago against native plants in mixtures (b) grown in uninvaded and invaded soils. Data are means ± 1 SE (n = 81). Abiotic effect, biotic effect, and total effect in two soils indicate how Solidago‐induced changes in soil abiotic properties, soil biotic properties, and soil abiotic and biotic properties influence the competitive tolerance and suppression ability of Solidago in mixtures. See Section 2 for details on determining abiotic effect, biotic effect, and total effect
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ece32743-fig-0003: Competitive tolerance ability of Solidago to native plants in mixtures (i.e., plant communities consisting of Solidago and three Chinese natives) (a) and competitive suppression ability of Solidago against native plants in mixtures (b) grown in uninvaded and invaded soils. Data are means ± 1 SE (n = 81). Abiotic effect, biotic effect, and total effect in two soils indicate how Solidago‐induced changes in soil abiotic properties, soil biotic properties, and soil abiotic and biotic properties influence the competitive tolerance and suppression ability of Solidago in mixtures. See Section 2 for details on determining abiotic effect, biotic effect, and total effect

Mentions: In terms of the competitive tolerance ability of Solidago, the soil abiotic effect and soil biotic effect did not vary with soil sources (Table 1: both p > .05; Figure 3a); however, this tolerance ability was greater in invaded regular soils than in uninvaded regular soils (Table 1: p = .026; Figure 3a). Like the relative abundance of Solidago, the effects of soil abiotic and biotic properties on its competitive suppression ability varied with soil sources (Table 1: both p < .05; Figure 3b), but the total effect of soil abiotic and biotic properties as a whole did not vary with soil sources (Table 1: p = .254; Figure 3b).


Dissecting Solidago canadensis – soil feedback in its real invasion
Competitive tolerance ability of Solidago to native plants in mixtures (i.e., plant communities consisting of Solidago and three Chinese natives) (a) and competitive suppression ability of Solidago against native plants in mixtures (b) grown in uninvaded and invaded soils. Data are means ± 1 SE (n = 81). Abiotic effect, biotic effect, and total effect in two soils indicate how Solidago‐induced changes in soil abiotic properties, soil biotic properties, and soil abiotic and biotic properties influence the competitive tolerance and suppression ability of Solidago in mixtures. See Section 2 for details on determining abiotic effect, biotic effect, and total effect
© Copyright Policy - creativeCommonsBy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5383496&req=5

ece32743-fig-0003: Competitive tolerance ability of Solidago to native plants in mixtures (i.e., plant communities consisting of Solidago and three Chinese natives) (a) and competitive suppression ability of Solidago against native plants in mixtures (b) grown in uninvaded and invaded soils. Data are means ± 1 SE (n = 81). Abiotic effect, biotic effect, and total effect in two soils indicate how Solidago‐induced changes in soil abiotic properties, soil biotic properties, and soil abiotic and biotic properties influence the competitive tolerance and suppression ability of Solidago in mixtures. See Section 2 for details on determining abiotic effect, biotic effect, and total effect
Mentions: In terms of the competitive tolerance ability of Solidago, the soil abiotic effect and soil biotic effect did not vary with soil sources (Table 1: both p > .05; Figure 3a); however, this tolerance ability was greater in invaded regular soils than in uninvaded regular soils (Table 1: p = .026; Figure 3a). Like the relative abundance of Solidago, the effects of soil abiotic and biotic properties on its competitive suppression ability varied with soil sources (Table 1: both p < .05; Figure 3b), but the total effect of soil abiotic and biotic properties as a whole did not vary with soil sources (Table 1: p = .254; Figure 3b).

View Article: PubMed Central - PubMed

ABSTRACT

The importance of plant&ndash;soil feedback (PSF) has long been recognized, but the current knowledge on PSF patterns and the related mechanisms mainly stems from laboratory experiments. We aimed at addressing PSF effects on community performance and their determinants using an invasive forb Solidago canadensis. To do so, we surveyed 81 pairs of invaded versus uninvaded plots, collected soil samples from these pairwise plots, and performed an experiment with microcosm plant communities. The magnitudes of conditioning soil abiotic properties and soil biotic properties by S.&nbsp;canadensis were similar, but the direction was opposite; altered abiotic and biotic properties influenced the production of subsequent S.&nbsp;canadensis communities and its abundance similarly. These processes shaped neutral S.&nbsp;canadensis&ndash;soil feedback effects at the community level. Additionally, the relative dominance of S.&nbsp;canadensis increased with its ability of competitive suppression in the absence and presence of S.&nbsp;canadensis&ndash;soil feedbacks, and S.&nbsp;canadensis&#8208;induced decreases in native plant species did not alter soil properties directly. These findings provide a basis for understanding PSF effects and the related mechanisms in the field conditions and also highlight the importance of considering PSFs holistically.

No MeSH data available.


Related in: MedlinePlus