Lupclip: Annual mowing has the potential to reduce the invasion of herbaceous Lupinus polyphyllus

In order to manage invasive plant species efficiently, it is necessary to have a thorough understanding of different strategies of population control, including the underlying mechanisms of action and the consequences for target populations. Here, I explored the effectiveness of biomass removal as a method of control for the invasive perennial herb Lupinus polyphyllus. More specifically, using seed material from 11 populations, I assessed among-population variation (if any) in plant compensatory growth as a response to annual biomass removal under standardised growing conditions over two consecutive years, and quantified the demographic effects of a single biomass-removal event. In all study populations, annual biomass removal reduced plant size, flowering probability, and shoot and root biomass. Biomass removal also reduced plant survival and the number of flowering shoots, but these effects were pronounced at certain time points only. A population-level demographic analysis revealed t...

为高效管控外来入侵植物物种，亟需深入掌握种群控制的各类策略，包括其核心作用机制与对目标种群的影响。本研究以入侵多年生草本植物多叶羽扇豆（Lupinus polyphyllus）为研究对象，探究了生物量移除作为防治手段的有效性。具体而言，研究采用源自11个种群的种子材料，在连续两年的标准化栽培条件下，评估种群间对年度生物量移除的补偿生长响应是否存在差异，并量化单次生物量移除事件的种群统计效应。在所有受试种群中，年度生物量移除均会降低植株体型、开花概率以及地上与地下生物量；生物量移除同时会降低植株存活率与开花枝条数量，但此类效应仅在特定时间点较为显著。种群水平的统计分析显示……