Abstract: Alien plant invasions have become serious environmental and socioeconomic problems and a hot topic of ecological research worldwide. Identifying the mechanisms that contribute to the success of invasive plants is very important for predicting and controlling potentially invasive plants. Biotic resistance hypothesis proposes that many biological factors and processes of native community can repel invaders. However, untill now, it is not clear about community resistance to invasion. In this paper, we reviewed the effects of functional trait diversity of community species, functional trait similarity to invasive species, plantherbivore interactions, plantplnt ineractions and plantsoil microbe interactions on the invasion of alien plants. In future, we should focus on the influences of plantplant interactions under different environments, plantherbivore interaction at different competitive intensities, and plantherbivoremicrobe interactions on the invasion of alien plants. These studies not only can improve the understanding of biological invasion mechanism, but also have a practical application value for protecting biodiversity, which can help us to predict the potential invasion region of the alien plants, and manage the ecosystem effectively.
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Key words: niche breadth, generalized additive model, forest community, dominant species, niche overlap