Exotic plant species with longer seed bank longevity and lower seed dry mass are more likely to be invasive in China  

种子库寿命较长且种子干质量较低的外来植物物种更有可能在中国成为入侵物种

作　　者：Yueyan Pan Lumeng Xie Ruiyan Shang Bernard AEngel Jingqiu Chen Shijun Zhou Yi Li Mingxiang Zhang Zhenming Zhang Jiakai Liu 

机构地区：[1]School of Ecology and Nature Conservation,Beijing Forestry University,Beijing 100083,China [2]The Key Laboratory of Ecological Protection in the Yellow River Basin of National Forestry and Grassland Administration,Beijing 100083,China [3]College of Agriculture,Purdue University,West Lafayette,IN 47907,USA [4]Biological Systems Engineering,Florida A&M University,Tallahassee,FL 32310,USA [5]Wetland Research Centre of Beijing Forestry University,Beijing 100083,China

出　　处：《Journal of Plant Ecology》2024年第5期106-119,共14页植物生态学报（英文版）

基　　金：supported by National Forestry and Grassland Administration Emergency Leading the Charge with Open Competition Project(202302);the Fundamental Research Funds for the Central University(BLX202250).

摘　　要：Globalization of social and economic activities has led to the large-scale redistribution of plant species.It is still unclear how the traits aid the successful invasion of alien species.Here,we downloaded global plant trait data from the TRY-Plant Trait Database and classified alien species in China into four groups:high,medium,need attention and harmless according to their distribution and degree of harm to local plant communities based on existed studies.The relationship between plant functional traits and invasion level was clarified,and we established a prediction model based on plant functional traits and taxonomy.The results showed that species with smaller seeds,smaller individuals,lower special leaf area and longer seed bank longevity(SL)are more likely to be an invasive species after introduction to foreign ecosystems.In summary,exotic species with longer SL and lower seed dry mass are more likely to be invasive in China.We also trained two predictive models to check if we can predict a species’invasion.Combining the two models together,statistically,we could predict if a species is invasive from its traits and taxonomy with a 91.84%accuracy.This model could help local governments,managers and stakeholders to evaluate shall we introduce some plant species in China.社会和经济活动的全球化导致植物物种的大规模重新分布。目前尚不清楚植物特征如何促成外来物种的成功入侵。在本研究中,我们从TRY数据库下载了全球植物特征数据,根据现有研究和外来物种对当地植物群落的危害程度,将中国的外来物种分为4组:高、中、需关注和无害。本研究厘清了植物功能性状与入侵程度之间的关系,并基于植物功能性状和分类建立了预测模型。研究发现,种子较小、个体较小、叶面积较小且种子库寿命较长的物种更有可能在引入到外来生态系统后成为入侵物种,具有较长种子库寿命和较低种子干质量的外来物种更有可能在中国成为入侵物种。本研究还训练了两个预测模型,以检查是否能够预测物种的入侵情况。模型可以通过物种的特征和分类来预测其是否具有入侵性,准确率达到91.84%,同时可以帮助地方政府、管理者和利益相关者评估是否应该将某些植物物种引入到中国。

关 键 词：exotic plant plant invasion plant traits invasion model seed bank 

分 类 号：Q94[生物学—植物学]