The ability to form persistent seed banks is one of the best predictors of species’ potential to establish in new ranges. Wild sunflower is native to North America where the formation of persistent seed banks is promoted by disturbance and it plays a key role on the establishment and persistence of native populations. However, the role of the seed banks on the establishment and persistence of invasive populations has not been studied. Here, we evaluated the role of seed bank and disturbance on the establishment and fitness, and seed persistence in the soil in several sunflower biotypes collected in ruderal (wild Helianthus annuus) and agrestal (natural crop–wild hybrid) habitats of Argentina as well as volunteer populations (progeny of commercial cultivars).

中文翻译：

---

外来入侵物种向日葵（Helianthus annuus L.）的种子库动力学

形成持久种子库的能力是物种建立新范围潜力的最佳预测指标之一。野生向日葵原产于北美洲，那里的干扰促进了持久性种子库的形成，它对建立和维持本地种群起着关键作用。但是，尚未研究种子库对入侵种群的建立和持久性的作用。在这里，我们评估了种子库和干扰对建立和适应的作用，以及在阿根廷的rurud（野生向日葵）和agrestal（自然作物－野生杂种）栖息地收集的几种向日葵生物型中土壤中种子的持久性。志愿者人群（商业品种的后代）。