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Data from: Relative importance of competition and plant-soil feedback, their synergy, context dependency and implications for coexistence Lekberg, Ylva; Bever, James D.; Bunn, Rebecca A.; Callaway, Ray M.; Hart, Miranda M.; Kivlin, Stephanie N.; Klironomos, John; Larkin, Beau G.; Maron, John L.; Reinhart, Kurt O.; Remke, Michael; van der Putten, Wim H.; Callaway, Ragan M.
Description
Abstract
Plants interact simultaneously with each other and with soil biota, yet the relative importance of competition versus plant soil feedback (PSF) on plant performance is poorly understood. Using a meta-analysis of 38 published studies and 150 plant species, we show that effects of interspecific competition (either growing plants with a competitor or singly, or comparing inter- vs. intraspecific competition) and PSF (comparing home vs. away soil, live vs. sterile soil, or control vs. fungicide-treated soil) depended on treatments but were predominantly negative, broadly comparable in magnitude, and additive or synergistic. Stronger competitors experienced more negative PSF than weaker competitors when controlling for density (inter- to intraspecific competition), suggesting that PSF could prevent competitive dominance and promote coexistence. When competition was measured against plants growing singly, the strength of competition overwhelmed PSF, indicating that the relative importance of PSF may depend not only on neighbor identity but also density. We evaluate how competition and PSFs might interact across resource gradients; PSF will likely strengthen competitive interactions in high resource environments and enhance facilitative interactions in low resource environments. Finally, we provide a framework for filling key knowledge gaps and advancing our understanding of how these biotic interactions influence community structure.
Usage notes
Tables S1_S2
Item Metadata
| Title |
Data from: Relative importance of competition and plant-soil feedback, their synergy, context dependency and implications for coexistence
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| Creator | |
| Date Issued |
2021-05-20
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| Description |
Abstract
Plants interact simultaneously with each other and with soil biota, yet the relative importance of competition versus plant soil feedback (PSF) on plant performance is poorly understood. Using a meta-analysis of 38 published studies and 150 plant species, we show that effects of interspecific competition (either growing plants with a competitor or singly, or comparing inter- vs. intraspecific competition) and PSF (comparing home vs. away soil, live vs. sterile soil, or control vs. fungicide-treated soil) depended on treatments but were predominantly negative, broadly comparable in magnitude, and additive or synergistic. Stronger competitors experienced more negative PSF than weaker competitors when controlling for density (inter- to intraspecific competition), suggesting that PSF could prevent competitive dominance and promote coexistence. When competition was measured against plants growing singly, the strength of competition overwhelmed PSF, indicating that the relative importance of PSF may depend not only on neighbor identity but also density. We evaluate how competition and PSFs might interact across resource gradients; PSF will likely strengthen competitive interactions in high resource environments and enhance facilitative interactions in low resource environments. Finally, we provide a framework for filling key knowledge gaps and advancing our understanding of how these biotic interactions influence community structure.; Usage notes Tables S1_S2 |
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| Type | |
| Notes |
Dryad version number: 1 Version status: submitted Dryad curation status: Published Sharing link: https://datadryad.org/stash/share/Z5hn8OHkUGBWSMHJxogp-LIdCmvB6jrv6IEpFY1L7Rk</p> Storage size: 157174 Visibility: public |
| Date Available |
2020-06-24
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| Provider |
University of British Columbia Library
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| License |
CC0 1.0
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| DOI |
10.14288/1.0398082
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| URI | |
| Publisher DOI | |
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| Aggregated Source Repository |
Dataverse
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Item Citations and Data
License
CC0 1.0