Invasive grasses consistently create similar plant–soil feedback types in soils collected from geographically distant locations

摘要: Invasive PSF is limited by soil type. Most, but not all, plant species exhibit negative feedback (PSF), wherein plants perform poorly in soils formerly occupied (conditioned) conspecifics. This dynamic has led to the Plant-Soil Feedback Hypothesis of Invasion which posits that have greater invasive potential when they create PSFs benefit conspecifics over heterospecifics (consequently creating ‘invasive’ PSFs). hypothesis was tested using four and three collected from distinct areas within outside each currently-invaded range. If plant-soil contributes potential, should be consistent among We determine examining conspecific heterospecific performance conditioned species. Results partially support Invasion. Taeniatherum caput-medusae generated all origins, Agropyron cristatum two origins. Centaurea solstitialis did its range, an a just beyond invasion edge. Poa pratensis demonstrate any effect.