Invasive plant species are locally adapted just as frequently and at least as strongly as native plant species
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Concerns over the ecological impacts of invasive alien plant species have generated great research interest in understanding the mechanisms that underlie the capacity of such plants to occupy a broad range of habitats. It has been repeatedly suggested that rapid evolution of local adaptation to novel environments may enable invasive plants to occupy a broad range of habitats. However, the classical Darwinian view on evolution by natural selection is that the process is slow and gradual, occurring over thousands of years. Invasive plants typically have a relatively short residence time in their introduced ranges (decades or just a few centuries). Besides the time constraint, founder effects (reduction in population size and genetic diversity) may also limit the capacity of invasive plants to rapidly evolve local adaption. Thus, invasive plants may be less likely than native plants to evolve local adaptation. Interestingly, however, an expanding body of literature documents the existence ...
针对外来入侵植物物种(invasive alien plant species)的生态影响所引发的担忧,引发了学界对解析这类植物能够占据多样生境的内在机制的浓厚研究兴趣。已有多项研究反复指出,对新环境的本地适应快速演化,或可使入侵植物具备占据广泛生境的能力。然而,经典达尔文自然选择演化观认为,该过程缓慢且渐进,通常需要数千年的时间才能完成。入侵植物在其入侵区域的定居时长通常较短,仅数十年或数百年。除了受时间限制之外,奠基者效应(founder effects)——即种群规模与遗传多样性的缩减——也可能限制入侵植物快速演化出本地适应能力的潜力。因此,相较于本土植物,入侵植物演化出本地适应的可能性更低。但有趣的是,日益增多的研究文献证实了……的存在



