DOI: 10.5061/dryad.sg770
title: Data from: Complementarity and selection effects in early and mid-successional plant communities are differentially affected by plant-soil feedback

description: 1. Many studies that provided evidence for a positive relationship between
 plant diversity and productivity have proposed that this effect may be
 explained by complementarity among species in resources utilization, or
 selection of particularly productive species in high-diversity plant
 communities. Recent studies have related the higher productivity in
 diverse plant communities to suppression of pathogenic soil biota. If soil
 biota plays a role in diversity–productivity relationships, the question
 remains about how they may influence complementarity and selection
 effects. 2. Here we examine how complementarity and selection effects may
 depend on soil biota using a plant–soil feedback approach. We used
 monocultures and mixtures of early successional plant species, which are
 known to have mostly negative plant–soil feedback effects, and
 mid-successional plant species, which generally have neutral plant–soil
 feedback. 3. We found that plant–soil feedback effects differed between
 monocultures and mixed plant communities, as well as between early and
 mid-successional plants. This resulted in a significant interaction effect
 between diversity and successional stage. In monocultures, plant–soil
 feedback tended to be negative for early and positive for mid-successional
 plant species. Interestingly, the community feedback responses of the
 mixed communities were opposite, being positive for early and negative for
 mid-successional community. 4. Plant–soil feedback differentially affected
 complementarity and selection effects of early and mid-successional plant
 communities: it enhanced complementarity effects of early and decreased
 selection effects of mid-successional species. 5. Synthesis. Soil biota
 that drive plant–soil feedback effects can influence the
 diversity–productivity relationship not only through decreased biomass
 production in monocultures compared to mixtures, but also through
 influencing complementarity and selection effects among species in mixed
 plant communities. Our results reveal that biodiversity–productivity
 relationships depend on plant–soil feedback interactions, which depend on
 the successional position of the plant. We propose that including
 successional position and trait-based analyses of plant–soil feedback in
 diversity-functioning studies will enhance understanding consequences of
 biodiversity loss for productivity and other ecosystem processes.
description: Biomass data of early
 and mid successioinal plant species in monoculture and mixture as
 influenced by plant-soil feedbackData were collected in
 the greenhouse two-stage (conditioining & feedback) biodiversity
 experiment in Wageningen, the Netherlands. Abbreviated headlines are as
 follows: "stage"=succession stage;"species"=plant
 species (including ten early succesional plant species and ten mid
 successional plant species);"soil"including conditioned soil and
 unconditioned soil;"monoculture"=biomass production in
 monoculture(g pot-1);"mixture1""=biomass production in
 plant community assemblage1(g pot-1);"mixture2""=biomass
 production in plant community assemblage2(g
 pot-1);"mixture3""=biomass production in plant community
 assemblage3(g pot-1);"mixture4""=biomass production in
 plant community assemblage4(g pot-1);"mixture5""=biomass
 production in plant community assemblage5(g pot-1).Jing et al JOE
 data.xlsx