Institute of Botany, Department of Invasive Ecology, The Czech Academy of Sciences, CZ-252 43, Průhonice, Czech Republic.
Department of Biosciences, Aarhus University, 8000, Aarhus C, Denmark.
Ecol Lett. 2018 Sep;21(9):1380-1389. doi: 10.1111/ele.13104. Epub 2018 Jul 5.
Determining the factors associated with the naturalization of alien species is a central theme in ecology. Here, we tested the usefulness of a metric for quantifying Grime's seminal concept of adaptive strategies - competitors, stress-tolerators and ruderals (CSR) - to explain plant naturalizations worldwide. Using a global dataset of 3004 vascular plant species, and accounting for phylogenetic relatedness and species' native biomes, we assessed the associations between calculated C-, S- and R-scores and naturalization success for species exhibiting different life forms. Across different plant life forms, C-scores were positively and S-scores negatively associated with both the probability of naturalization and the number of regions where the species has naturalized. R-scores had positive effects on the probability of naturalization. These effects of the scores were, however, weak to absent for tree species. Our findings demonstrate the utility of CSR-score calculation to broadly represent, and potentially explain, the naturalization success of plant species.
确定与外来物种归化相关的因素是生态学的一个核心主题。在这里，我们测试了一种度量标准在量化 Grime 的开创性适应策略概念——竞争者、耐胁迫者和杂草（CSR）——以解释全球范围内植物归化的有用性。我们使用了一个包含 3004 种维管植物物种的全球数据集，并考虑了系统发育关系和物种的原生生物群落，评估了具有不同生活形式的物种的计算 C、S 和 R 分数与归化成功率之间的关系。在不同的植物生活形式中，C 分数与归化的可能性和物种已经归化的区域数量呈正相关，S 分数则呈负相关。R 分数对归化的可能性有积极影响。然而，对于树种来说，这些分数的影响是微弱的或不存在的。我们的研究结果表明，CSR 分数的计算在广泛代表和潜在解释植物物种的归化成功率方面具有实用性。
