J Plant Ecol ›› 2025, Vol. 18 ›› Issue (2): rtaf032.DOI: 10.1093/jpe/rtaf032

• Research Articles •    

Climatic, human-induced and biodiversity factors differently shape the suitable areas of Bidens pilosa

Zhikun Ren1,†, Yuqi Ai2,†, Müller-Schärer Heinz1,3, Junqi Liu1, Xinrou Yuan1, Xinyi Tang1, Jintao Liu1, Wei Huang4, and Yan Sun1,*   

  1. 1College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
    2School of Life Sciences, Fudan University, Shanghai 200438, China
    3epartment of Biology, University of Fribourg, Fribourg 1700, Switzerland
    4Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China

    *Corresponding author. E-mail: yan.sun@mail.hzau.edu.cn
    The authors contribute equally to this work.
  • Received:2024-06-30 Accepted:2025-03-01 Online:2025-03-22 Published:2025-04-01
  • Supported by:
    Y.S. acknowledges funding through the National Natural Science Foundation of China (32201438), the Scientifc Research of Huazhong Agricultural University (11042110026 and 2662023ZHPY002) and Wuhan talent grant for funding. W.H. acknowledges the National Natural Science Foundation of China (32071660).

气候、人为干扰和生物多样性对入侵植物三叶鬼针草适生区的差异化影响

Abstract: Bidens pilosa, a globally invasive Asteraceae plant, threatens both natural and agro-ecological habitats. Species distribution models (SDMs) are a valuable tool for predicting invasion potential, often exclusively based on climate variables. Here, we aimed to predict the current and future global distribution of B. pilosa by integrating climatic, human-induced and biodiversity factors, all of which are critical for accurate projections. Our more comprehensive results showed that climate conditions were the main driver of B. pilosa’s current distribution, with an expanded suitable area compared to previous studies, especially in eastern China and the Sichuan Basin. Incorporating human-induced factors significantly reduced predicted suitable areas, reflecting the species’ association with disturbed environments shaped by human activities. Biodiversity factors further refined habitat suitability, as areas with high phylogenetic richness were identified as potential hotspots for invasion due to competitive or facilitative interactions. Future predictions, based on solely available climate data, suggested a high risk of habitat expansions in Asia, Europe and North America. Niche dynamic analyses revealed that introduced populations occupied a distinct environmental niche space compared to native populations, due to adapting to altered climatic and anthropogenic conditions. This ecological niche divergence is likely driving the increased invasion risk in the introduced range. Our study underscores the complex interactions between climate conditions, biodiversity and human activity in shaping the spread of B. pilosa. SDMs integrating climatic, biotic variables and human-influenced factors, together with updated occurrence data improve predictions of invasion spread and help guide targeted management.

Key words: biological invasions, climate change, environmental factors, potential geographical distribution, habitat suitability, niche overlap

摘要:
三叶鬼针草(Bidens pilosa L.)作为全球性的菊科入侵植物,严重威胁自然生态系统及农业生产 。尽管物种分布模型(SDMs)被广泛用于入侵潜力评估,但大多数研究仅聚焦于气候变量,忽视了人类活动与生物互作的协同效应。本研究通过整合气候、人类活动及生物多样性因素,解析三叶鬼针草当前全球分布格局的驱动因子,并预测其未来扩张的潜在热点地区。研究结果表明,气候因子是三叶鬼针草当前分布格局的主导因子,其潜在适生区较以往研究显著扩大,尤其在中国东部和四川盆地。人为干扰因素显著限制了其适生区范围,表明该物种对人类活动塑造的干扰环境具有适应性。生物多样性因素同样影响其适生区分布,植物系统发育多样性较高的区域因竞争或促进效应可能成为潜在入侵热点。未来气候情景预测显示,亚洲、欧洲及北美洲的适生区扩张风险显著提高。生态位分析显示,引入地种群因适应气候与人为环境变化,与原生种群发生显著生态位分化,这种分化可能驱动其入侵进程。本研究揭示了气候、人为干扰与生物因素对三叶鬼针草扩散的协同影响,表明整合多类型因素的SDMs有助于提升入侵物种扩散预测的准确性,为制定针对性防控策略提供科学依据。

关键词: 生物入侵, 气候变化, 环境因素, 潜在地理分布, 生境适宜性, 生态位重叠