Demographic amplification is a predictor of invasiveness among plants
Demographic amplification is a predictor of invasiveness among plants
复制标题
DOI：
10.1038/s41467-019-13556-w
复制
发表时间：
2019-12-06
影响因子：
16.6
通讯作者：
Hodgson, Dave
中科院分区：
文献类型：
--
作者：
Jelbert, Kim;Buss, Danielle;Hodgson, Dave
入侵植物物种威胁着世界各地的原生生物多样性、生态系统、农业、工业和人类健康，迫切需要寻找原生范围外植物入侵性的预测因子。关于哪些植物特征最能预测入侵性，有很多相互矛盾的证据。在这里，我们对500多种植物物种进行了全球人口统计调查，以表明入侵植物种群比非入侵植物更有可能从干扰中恢复过来，即使在本土范围内进行测量也是如此。入侵者在其入侵范围内具有高稳定的人口增长率，但这一指标无法根据在本地范围内的测量来预测。从人口扰动中恢复是衡量瞬时人口扩增的一个指标，与高水平的繁殖有关，并显示了系统发育信号。我们的研究结果表明，短暂的人口动态和繁殖能力可以帮助预测整个植物王国的入侵，并应指导国际政策的贸易和移动的植物。
Invasive plant species threaten native biodiversity, ecosystems, agriculture, industry and human health worldwide, lending urgency to the search for predictors of plant invasiveness outside native ranges. There is much conflicting evidence about which plant characteristics best predict invasiveness. Here we use a global demographic survey for over 500 plant species to show that populations of invasive plants have better potential to recover from disturbance than non-invasives, even when measured in the native range. Invasives have high stable population growth rates in their invaded ranges, but this metric cannot be predicted based on measurements in the native ranges. Recovery from demographic disturbance is a measure of transient population amplification, linked to high levels of reproduction, and shows phylogenetic signal. Our results demonstrate that transient population dynamics and reproductive capacity can help to predict invasiveness across the plant kingdom, and should guide international policy on trade and movement of plants.