Qian Hong
Research and Collections Center, Illinois State Museum, 1011 East Ash Street, Springfield, IL 62703, USA.
Plant Divers. 2023 Feb 16;45(4):363-368. doi: 10.1016/j.pld.2023.02.003. eCollection 2023 Jul.
Invasive species may pose significant threats to biodiversity and ecosystem structure and functioning. The number of introduced species that have become invasive is substantial and is rapidly increasing. Identifying potentially invasive species and preventing their expansion are of critical importance in invasion ecology. Phylogenetic relatedness between invasive and native species has been used in predicting invasion success. Previous studies on the phylogenetic relatedness of plants at the transition from naturalization to invasion have shown mixed results, which may be because different methods were used in different studies. Here, I use the same method to analyze two comprehensive data sets from South Africa and China, using two phylogenetic metrics reflecting deep and shallow evolutionary histories, to address the question whether the probability of becoming invasive is higher for naturalized species distantly related to the native flora. My study suggests that the probability of becoming invasive is higher for naturalized species closely related to the native flora. The finding of my study is consistent with Darwin's preadaptation hypothesis.
入侵物种可能对生物多样性以及生态系统的结构和功能构成重大威胁。已成为入侵物种的外来物种数量众多且还在迅速增加。识别潜在的入侵物种并防止其扩散在入侵生态学中至关重要。入侵物种与本地物种之间的系统发育相关性已被用于预测入侵成功与否。先前关于植物从归化到入侵转变过程中系统发育相关性的研究结果不一，这可能是因为不同研究采用了不同方法。在此，我使用相同方法分析来自南非和中国的两个综合数据集，运用反映进化历史深浅的两个系统发育指标，以探讨与本地植物区系亲缘关系较远的归化物种成为入侵物种的可能性是否更高这一问题。我的研究表明，与本地植物区系亲缘关系较近的归化物种成为入侵物种的可能性更高。我研究的这一发现与达尔文的预适应假说相符。
