Fig. 1 Species-level plant-soil feedback (PSF) for nine
grassland species, Jena, Germany. Values represent the mean and
variation in PSF observed across the eight other soil types in the
experiment. Positive values indicate the proportion to which a plant
grows better on ‘home’ than ‘away’ soils. Negative values indicate the
proportion to which a plant grows better on ‘away’ than ‘home’ soils.
Solid and dotted lines are from fall 2017 and fall 2018, respectively.
Error bars represent 95% confidence intervals from bootstrapped values.
Red, black and blue values represent negative, neutral and positive
PSFs, respectively. Species abbreviations on the x-axis: five grass
species: Alopecurus pratensis (Alo pra), Arrhenatherum
elatius (Arr ela), Dactylis glomerata (Dac glo), Phleum
pratense (Phl pra), Poa trivialis (Poa tri); two tall
herbs: Anthriscus sylvestris (Ant syl), Geranium pratense(Ger pra); and two legumes: Trifolium pratense (Tri
pra), Trifolium repens (Tri rep).