Native Plant Diversity Provides Resistance to Invasion by an Alien Species in Natural and Experimental Settings
文献类型： 外文期刊
作者： Liu, Zhen 1 ; Zhu, Biao 1 ; Gao, Lunlun 1 ; Wei, Chunqiang 4 ; Siemann, Evan 5 ; Liu, Wanxue 6 ; Lu, Xinmin 1 ;
作者机构： 1.Huazhong Agr Univ, State Key Lab Agr Microbiol, Wuhan, Peoples R China
2.Hubei Hongshan Lab, Wuhan, Peoples R China
3.Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan, Peoples R China
4.Chinese Acad Sci, Guangxi Inst Bot, Guilin, Peoples R China
5.Rice Univ, Biosci Dept, Houston, TX USA
6.Chinese Acad Agr Sci, Inst Plant Protect, Beijing, Peoples R China
关键词： Alternanthera philoxeroides; biotic resistance; experiment; herbivores; large-scale field survey; native diversity; plant invasion; soil biota
期刊名称：ECOLOGY LETTERS （ 影响因子：7.9； 五年影响因子：9.4 ）
ISSN： 1461-023X
年卷期： 2025 年 28 卷 5 期
页码：
收录情况： SCI
摘要： It remains uncertain whether native plant diversity increases resistance to plant invasions at meaningful scales in nature due to contradictions between observational and experimental studies. In a field survey of 253 sites spanning 15 latitudinal degrees in China, we found that the relative abundance of the invader Alternanthera philoxeroides decreased with increasing native plant richness. Results from a 3-year field experiment and a 2-year mesocosm experiment further demonstrated that native diversity can suppress A. philoxeroides population growth (but not dominance) when natives precede the invader, or limit its population size when natives arrive after the invader. Insect herbivores and the soil biota were unlikely to influence diversity-based resistance in the field experiment, as their effects on both A. philoxeroides and native species did not change with native richness. Our results provide solid evidence that native plant diversity can provide resistance against plant invasion in natural ecosystems.
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