Derived occurrence species data

This study employed an environmental horizon scanning approach to identify potential new alien vascular plant species and their climatic niche spaces in the Arctic under current climate conditions. The Global Naturalized Alien Flora (GloNAF) database provided the pool of potential new alien species, from which taxa already confirmed present in the Arctic were excluded. The Circumpolar Arctic Vegetation Map (CAVM) was used to delineate the Arctic region. Climatic niche modeling with the hypervolume package in R was then utilized to determine which species from the remaining pool had potential climatic niche overlap in the Arctic.本研究采用环境前瞻扫描法，识别当前气候条件下北极地区潜在的新增外来维管植物物种及其对应的气候生态位空间。本研究依托《全球归化外来植物区系》（Global Naturalized Alien Flora, GloNAF）数据库作为潜在新增外来物种的来源库，并从中剔除已确认在北极区域存在的分类群。本研究借助《环北极植被图》（Circumpolar Arctic Vegetation Map, CAVM）划定北极研究范围。随后，本研究通过R语言中的hypervolume包开展气候生态位建模，以筛选出剩余物种库中在北极地区存在潜在气候生态位重叠的物种。