10.5061/DRYAD.VHHMGQNPG
Manrubia, Marta
0000-0002-7058-4844
Nederlands Instituut voor Ecologie
van der Putten, Wim H.
Nederlands Instituut voor Ecologie
Weser, Carolin
Nederlands Instituut voor Ecologie
Veen, Ciska
Nederlands Instituut voor Ecologie
Rhizosphere and litter feedbacks to range-expanding plant species and
related natives
Dryad
dataset
2019
litter feedback
novel communities
plant range expansion
plant–soil feedback
rhizosphere feedback
2019-12-01T00:00:00Z
2019-12-01T00:00:00Z
en
https://doi.org/10.1111/1365-2745.13299
64576 bytes
3
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
1. Plant-soil feedback (PSF) results from the net legacy effect that
plants leave in the composition of soil communities and abiotic soil
properties. PSF is induced by the rhizosphere and by litter inputs into
the soil, however, we have little understanding of their individual
contributions. Here, we examine feedback effects from the rhizosphere of
living plants, decomposing litter, and their combination. 2. We used
four pairs of climate warming-induced range-expanding plant species and
congeneric natives, and examined PSF effects on plant biomass production,
as well as on decomposition in their new range. 3. We tested the
hypothesis that the plant rhizosphere provides less negative feedback
to range-expanders than to the congeneric natives, and that feedback
mediated by litter decomposition does not provide such a difference
because decomposers might be less specialized than pathogens. To determine
PSF, we used soil from the congener species within each pair as an “away”
soil to indicate whether range-expanders may have lost their specialized
soil biota upon arrival in the novel range. 4. Our results show that
although range-expanding plant species and their
congeneric natives developed neutral PSF in both rhizosphere-
and litter-conditioned soils, two of the four range-expanders produced
more biomass than natives in soils conditioned by litter, i.e. soils with
high nutrient content. Shoot litter from two out of
four range-expanding species decomposed more than that of natives, but
decomposition was unaffected by soil conditioning. 5. Synthesis. We
compared PSF effects of range expanders and congeneric natives mediated
via both the rhizosphere and litter using the congeneric species as a
control. Under those conditions, PSF effects were neutral and not affected
by plant origin. Therefore, we conclude that studies not comparing
within plant genera may overestimate the impact of plant origin on PSF.
Still, even under those conditions range-expanders appeared to benefit
more from high soil nutrient availability than natives, thus providing a
possible advantage over congeneric natives.