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Effect of allelopathy on plant performance : a meta-analysis

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2021

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Liu, Yanjie
Yuan, Ling
Weber, Ewald
van Kleunen, Mark

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Ecology Letters. Wiley-Blackwell. 2021, 24(2), pp. 348-362. ISSN 1461-023X. eISSN 1461-0248. Available under: doi: 10.1111/ele.13627

Zusammenfassung

Allelopathy (i.e. chemical interactions between plants) is known to affect individual performance, community structure and plant invasions. Yet, a quantitative synthesis is lacking. Here, we performed a meta-analysis of 384 studies that measured allelopathic effects of one species (allelopathy plant) on another species or itself (test plant). Overall, allelopathy reduced plant performance by 25%, but the variation in allelopathy was high. The type of method affected the allelopathic effect: compared to leachates, allelopathy was more negative when residues of allelopathy plants were applied, and less negative when soil conditioned by allelopathy plants was applied. The negative effects of allelopathy diminished with study duration, and increased with concentrations of leachates or residues. Although allelopathy was not significantly related to lifespan, life form or domestication of the interacting plants, it became more negative with increasing phylogenetic distance. Moreover, native plants suffered more from leachates of naturalised alien plants than from leachates of other native plants. Our synthesis reveals that allelopathy could contribute to success of alien plants. The negative relationship between phylogenetic distance and allelopathy indicates that allelopathy might contribute to coexistence of closely related species (i.e. convergence) or dominance of single species.

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570 Biowissenschaften, Biologie

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Crop, interference competition, invasive species, life history, meta-analysis, phylogeny, soil microbes, succession.

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ISO 690ZHANG, Zhijie, Yanjie LIU, Ling YUAN, Ewald WEBER, Mark VAN KLEUNEN, 2021. Effect of allelopathy on plant performance : a meta-analysis. In: Ecology Letters. Wiley-Blackwell. 2021, 24(2), pp. 348-362. ISSN 1461-023X. eISSN 1461-0248. Available under: doi: 10.1111/ele.13627
BibTex
@article{Zhang2021-02Effec-51480,
  year={2021},
  doi={10.1111/ele.13627},
  title={Effect of allelopathy on plant performance : a meta-analysis},
  number={2},
  volume={24},
  issn={1461-023X},
  journal={Ecology Letters},
  pages={348--362},
  author={Zhang, Zhijie and Liu, Yanjie and Yuan, Ling and Weber, Ewald and van Kleunen, Mark}
}
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