Invasive alien plants are phylogenetically distinct from other alien species across spatial and taxonomic scales in China

作者：Achyut Kumar Banerjee, Fengxiao Tan, Hui Feng, Xinru Liang, Jiakai Wang, Minghui Yin, Hao Peng, Yuting Lin, Nannan Zhang, Yelin Huang · 发表于：Frontiers in Plant Science · 年份：2023 · DOI：10.3389/fpls.2023.1075344 · 被引用次数：6 · 研究领域：Ecology and Vegetation Dynamics Studies、Species Distribution and Climate Change、Biological Control of Invasive Species

Introduction: Phylogenetic relatedness is one of the important factors in the community assembly process. Here, we aimed to understand the large-scale phylogenetic relationship between alien plant species at different stages of the invasion process and how these relationships change in response to the environmental filtering process at multiple spatial scales and different phylogenetic extents. Methods: We identified the alien species in three invasion stages, namely invasive, naturalized, and introduced, in China. The occurrence records of the species were used to quantify two abundance-based phylogenetic metrics [the net relatedness index (NRI) and the nearest taxon index (NTI)] from a highly resolved phylogenetic tree. The metrics were compared between the three categories of alien species. Generalized linear models were used to test the effect of climate on the phylogenetic pattern. All analyses were conducted at four spatial scales and for three major angiosperm families. Results: We observed significantly higher NRI and NTI values at finer spatial scales, indicating the formation of more clustered assemblages of phylogenetically closely related species in response to the environmental filtering process. Positive NTI values for the invasive and naturalized aliens suggested that the presence of a close relative in the community may help the successful naturalization and invasion of the introduced alien species. In the two-dimensional phylogenetic space, the invasive speci...