M88体育-明升M88体育讯（通讯员 刘园园 郭钰柬）近日，我校园艺林学学院王永健教授团队在植物功能性状决定入侵成功方面取得新进展，论文以“Clonal functional traits favor the invasive success of alien plants into native communities”为题在期刊Ecological Applications上发表。
在全球变化背景下，植物入侵是生物因素和非生物因素复杂相互作用的结果。功能性状常常被认为是决定外来物种入侵性的关键内在因素。然而，迄今很少有实证研究直接操控功能性状来检验其在外来物种成功入侵本地植物群落中的重要性，尤其是在全球变化的背景下。克隆整合是克隆植物最重要的功能性状之一。该研究通过切断或不切断分株之间的连接，操控了4种外来入侵克隆植物的克隆整合，并模拟它们入侵两种不同物种多样性水平、两种不同密度和两种不同养分可用性的本地植物群落。结果表明：高群落物种多样性和高群落密度阻碍了外来克隆植物的成功入侵；外来入侵植物的克隆整合可以显著促进其对本地植物群落的成功入侵，这种效应在物种多样性低或具有高养分水平的低密度群落中尤为显著。因此，克隆整合有助于外来克隆植物成功入侵遭受高度干扰和富营养化的退化本地群落。
研究成果证实了克隆功能性状在促进外来植物入侵本地植物群落中的作用，表明为有效恢复被外来克隆植物严重入侵的退化群落，应考虑外来入侵物种克隆功能性状。例如，可采取管理措施来阻断分株的克隆整合作用以消除其对外来植物的潜在积极影响和对本地植物群落的负面影响。这些措施同时应与增加本地物种多样性和密度的植被恢复，及控制生境土壤富营养化等措施相结合。该研究对准确理解全球变化背景下外来植物入侵风险和防控具有重要意义。
不同克隆整合、群落密度和养分处理下外来种生物量及占比
不同克隆整合、群落多样性和密度处理下外来种和本地群落生物量
实验设计
园艺林学学院王永健教授为论文第一作者，台州学院浙江省植物进化生态学与保护重点实验室于飞海教授为论文通讯作者，瑞士Fribourg大学Heinz Müller-Schärer教授、我校博士生刘园园、德国Konstanz大学博士生陈朵（原M88体育-明升M88体育硕士生）、江苏大学环境与安全工程学院杜道林教授参与了研究工作。该研究得到了国家自然科学基金面上项目和中央高校基本科研业务费资助。
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审核人：王永健
【英文摘要】
Functional traits are frequently proposed to determine the invasiveness of alien species. However, few empirical studies have directly manipulated functional traits and tested their importance in the invasion success of alien species into native plant communities, particularly under global change. We manipulated clonal integration (a key clonal functional trait) of four alien clonal plants by severing inter-ramet connections or keeping them intact and simulated their invasion into native plant communities with two levels of species diversity, population density and nutrient availability. High community diversity and density impeded the invasion success of the alien clonal plants. Clonal integration of the alien plants promoted their invasion success, particularly in the low-density communities associated with low species diversity or nutrient addition, which resulted in a negative correlation between the performance of alien plants and native communities, as expected under global change. Thus, clonal integration can favor the invasion success of alien clonal plants into degraded resident communities with a high degree of disturbance and eutrophication. Our findings confirm the role of clonal functional traits in facilitating alien plant invasions into native plant communities and suggest that clonal functional traits should be considered to efficiently restore degraded communities heavily invaded by alien clonal plants.
