Long-term effects of host-specific soil microbiota on plant interactions
收藏DataONE2025-02-27 更新2025-04-26 收录
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It is increasingly recognised that resource competition and plant-soil feedback (PSF) effects can jointly determine outcomes of plant interactions. However, it is less clear whether PSF modulates intraspecific or interspecific competition, or intrinsic growth rate. Thus, it remains to be answered whether PSF alters coexistence predictions by changing competitive ability of interacting species (fitness differences) or rather by altering self-limitation (niche differences). Here, I examined the effects of host-specific soil inoculum, including target and competitor species inoculum, and non-specific inoculum on pairwise interactions of four pairs of grassland perennials. To explore whether the effects of PSF were persistent and dependent on resource availability, interactions were studied over a two-year period under control and fertilized conditions. These data were then used to estimate fitness differences and niche differences and to predict species coexistence. I found that a host-spe..., , , # Long-term effects of host-specific soil microbiota on plant interactions
**Authors**
Petr Dostál
Inst. of Botany, The Czech Academy of Sciences, Průhonice, Czech Republic
Correspondence: Petr Dostál ([petr.dostal@ibot.cas.cz](mailto:petr.dostal@ibot.cas.cz))
File list (files found within DataS1.zip)
The study examined the impact of host-specific soil inoculum on grassland perennials over two years under control and fertilized conditions. PSF promoted coexistence by increasing niche differences (reducing interspecific competition) and altering growth rates (favoring inferior competitors). These effects were persistent but disappeared with nutrient addition, suggesting that PSF can promote coexistence but may not prevent competitive exclusion in fertilized environments.
**psf_compet.csv**
**File descriptions**
1. psf_compet.csv - Data from the garden competition experiment
**Variables:**
* pot_code
* ID_targ = target species
* N_comp = number of planted competitor individuals...
创建时间：
2025-02-28
