Stress and land-use legacies alter the relationship between invasive- and native- plant richness

摘要

QuestionsDoes the driver of native richness impact invasion-diversity relationships? In high stress systems, do negative invasion-diversity relationships emerge from biotic resistance (as predicted by the diversity-resistance hypothesis) or from stress acting as a selective driver of native richness? Do invasion-diversity relationships change when abiotic and biotic legacies, rather than stress, act as non-selective drivers of richness?