No evidence that plant-soil feedback effects of native and invasive plant species under greenhouse conditions are reflected in the field

Plant–soil feedback (PSF) may affect above-ground higher trophic levels in glasshouse experiments, but evidence from field studies on the relevance of these multitrophic interactions for plant performance is lacking. Therefore, we examined whether PSF effects of several native and invasive plant species occur also in the field and influence plant damage by above-ground herbivores. Root zone soil from an abandoned urban field was used as inocula for the PSF experiment. First, we grew eight urban grassland plant species (five natives and three invasive species) separately in a glasshouse, with soil biota communities conditioned by the respective species itself (‘home soil’) or by a mixture of all other species (‘foreign soil’). After 13 weeks, one cohort of the plants was placed on an urban field in Berlin to assess damage by naturally colonizing herbivores, while another cohort of the plants stayed in the glasshouse. We observed that the extent of the PSF effects differed between the fie...植物-土壤反馈（Plant–soil feedback, PSF）在温室实验中可能会对地上高营养级生物产生影响，但目前缺乏野外研究证据，以阐明此类多营养级互作对植物表现的相关性。为此，本研究探究了多种本土与入侵植物的PSF效应是否同样存在于野外环境，并影响地上植食性动物造成的植物损伤。本研究以一处废弃城市农田的根际土壤作为PSF实验的接种物。首先，我们在温室中分别培育8种城市草原植物（含5种本土植物与3种入侵植物），其培育所用土壤生物群落分别经目标物种自身驯化（"本土土壤"）或其余所有物种共同驯化（"外源土壤"）。培养13周后，将一组植物定植于柏林的一处城市农田中，以评估自然定植的植食性动物造成的损伤；另一组植物则继续留在温室内培养。我们观察到，PSF效应的强弱在野外（fie...）