Integrative Biology Journals

Plant Diversity ›› 2025, Vol. 47 ›› Issue (05): 814-823.DOI: 10.1016/j.pld.2025.05.002

• Articles • Previous Articles     Next Articles

Environmental drivers and future distribution of invasive alien plant species in the Gaoligong Mountains, southwestern China

Yu Xiao (肖俞)a,b,c, Xuecan Wu (吴学灿)c, Hexiang Duan (段禾祥)c, Zhengtao Ren (任正涛)c, Zhicheng Jiang (姜志诚)c, Tingfa Dong (董廷发)a,b, Yuran Li (李宇然)c, Jinming Hu (胡金明)a,d, Yupeng Geng (耿宇鹏)a,b   

  1. a. State Key Laboratory for Vegetation Structure, Function and Construction (VegLab), Ministry of Education Key Laboratory for Transboundary Ecosecurity of Southwest China, Institution of International River and Eco-security, Yunnan University, Kunming 650504, Yunnan, China;
    b. Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, Yunnan, China;
    c. Kunming International Research Center for Plateau Lakes, Yunnan Academy of Ecological and Environmental Sciences, Kunming 650034, Yunnan, China;
    d. Faculty of Geography, Yunnan Normal University, Kunming 650500, Yunnan, China
  • Received:2024-11-28 Revised:2025-05-09 Online:2025-09-29 Published:2025-09-29
  • Contact: Jinming Hu,E-mail:hujm@ynnu.edu.cn;Yupeng Geng,E-mail:ypgeng@ynu.edu.cn
  • Supported by:
    This work was supported by the Second Tibetan Plateau Scientific Expedition and Research (STEP) Program (Grant No. 2019QZKK0502), National Natural Science Foundation of China (Grant No. U23A20160) and Shanghai Science and Technology Innovation Action Plan (Grant No. 23015810100).

Environmental drivers and future distribution of invasive alien plant species in the Gaoligong Mountains, southwestern China

Yu Xiao (肖俞)a,b,c, Xuecan Wu (吴学灿)c, Hexiang Duan (段禾祥)c, Zhengtao Ren (任正涛)c, Zhicheng Jiang (姜志诚)c, Tingfa Dong (董廷发)a,b, Yuran Li (李宇然)c, Jinming Hu (胡金明)a,d, Yupeng Geng (耿宇鹏)a,b   

  1. a. State Key Laboratory for Vegetation Structure, Function and Construction (VegLab), Ministry of Education Key Laboratory for Transboundary Ecosecurity of Southwest China, Institution of International River and Eco-security, Yunnan University, Kunming 650504, Yunnan, China;
    b. Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, Yunnan, China;
    c. Kunming International Research Center for Plateau Lakes, Yunnan Academy of Ecological and Environmental Sciences, Kunming 650034, Yunnan, China;
    d. Faculty of Geography, Yunnan Normal University, Kunming 650500, Yunnan, China
  • 通讯作者: Jinming Hu,E-mail:hujm@ynnu.edu.cn;Yupeng Geng,E-mail:ypgeng@ynu.edu.cn
  • 基金资助:
    This work was supported by the Second Tibetan Plateau Scientific Expedition and Research (STEP) Program (Grant No. 2019QZKK0502), National Natural Science Foundation of China (Grant No. U23A20160) and Shanghai Science and Technology Innovation Action Plan (Grant No. 23015810100).

Abstract: Invasive alien plant species (IAPS) pose severe threats to global biodiversity conservation. Effective management of IAPS requires mapping their distribution and identifying the environmental factors that drive their spread. The Gaoligong Mountains, a renowned biodiversity hotspot in southwestern China, currently face the dual challenges of IAPS invasion and climate change. However, we know little about the distribution patterns, key environmental drivers, and sensitivity of IAPS to future climate change in this region. In this study, we mapped IAPS richness distribution and identified invasion hotspots throughout the Gaoligong Mountains. In addition, we assessed the relative importance of environmental variables in shaping the spatial distribution of IAPS richness and projected potential shifts in IAPS richness under various climate change scenarios. We identified 161 IAPS, primarily concentrated in the low-elevation tropical and subtropical regions along river valleys, forming belt-like invasion hotspots. The key factors shaping IAPS richness included disturbance complexity, elevation, seasonal precipitation, and vegetation types. Notably, IAPS richness significantly declined with increasing elevation and latitude but increased with higher disturbance complexity. Moreover, IAPS were more prevalent in grasslands and shrublands than in forested areas. Ensemble modeling of future climate scenarios predicted that the distribution of IAPS richness would shift to progressively higher elevations. These findings provide valuable insights for managing IAPS in mountainous regions that play a crucial role in global biodiversity conservation.

Key words: Climate change, Distribution pattern, Environmental driver, Gaoligong mountains, Invasive alien plant species, Invasion hotspot

摘要: Invasive alien plant species (IAPS) pose severe threats to global biodiversity conservation. Effective management of IAPS requires mapping their distribution and identifying the environmental factors that drive their spread. The Gaoligong Mountains, a renowned biodiversity hotspot in southwestern China, currently face the dual challenges of IAPS invasion and climate change. However, we know little about the distribution patterns, key environmental drivers, and sensitivity of IAPS to future climate change in this region. In this study, we mapped IAPS richness distribution and identified invasion hotspots throughout the Gaoligong Mountains. In addition, we assessed the relative importance of environmental variables in shaping the spatial distribution of IAPS richness and projected potential shifts in IAPS richness under various climate change scenarios. We identified 161 IAPS, primarily concentrated in the low-elevation tropical and subtropical regions along river valleys, forming belt-like invasion hotspots. The key factors shaping IAPS richness included disturbance complexity, elevation, seasonal precipitation, and vegetation types. Notably, IAPS richness significantly declined with increasing elevation and latitude but increased with higher disturbance complexity. Moreover, IAPS were more prevalent in grasslands and shrublands than in forested areas. Ensemble modeling of future climate scenarios predicted that the distribution of IAPS richness would shift to progressively higher elevations. These findings provide valuable insights for managing IAPS in mountainous regions that play a crucial role in global biodiversity conservation.

关键词: Climate change, Distribution pattern, Environmental driver, Gaoligong mountains, Invasive alien plant species, Invasion hotspot