Biogeography of a Global Plant Invader: From the Evolutionary History to Future Distributions,Global Change Biology

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Biogeography of a Global Plant Invader: From the Evolutionary History to Future Distributions
Global Change Biology ( IF 10.8 ) Pub Date : 2024-12-10 , DOI: 10.1111/gcb.17622
Lei Zhang, Isolde van Riemsdijk, Mu Liu, Zhiyong Liao, Armand Cavé‐Radet, Jingwen Bi, Shengyu Wang, Yujie Zhao, Peipei Cao, Madalin Parepa, Oliver Bossdorf, Armel Salmon, Malika Aïnouche, Rui‐Ting Ju, Jihua Wu, Christina L. Richards, Bo Li

Biological invasions pose a global challenge, affecting ecosystems worldwide and human societies. Knowledge of the evolutionary history of invasive species is critical to understanding their current invasion success and projecting their future spread. However, to date, few studies have addressed the evolutionary history and potential future spread of invaders simultaneously. In this study, we explored both evolutionary history and spatiotemporal dynamic patterns of the distribution of Reynoutria japonica, known as one of the world's worst plant invaders. We analysed 265 R. japonica samples from its current geographical ranges across three continents, using seven chloroplast DNA (cpDNA) markers to establish the phylogenetic relationships among extant populations. We combined these with ecological niche modelling to infer historical and more recent migration patterns and predict potential future distribution changes under climate change. Our results indicate that climate fluctuations and sea level changes likely facilitated the expansion of R. japonica from southern Japan to continental East Asia in the Pliocene, followed by a contraction in East Asian populations. In the recent Holocene, human activities have then enabled a linage of this species to spread from Japan to Europe and North America, resulting in three major global clades. Future climate scenarios suggest a northward expansion of R. japonica in Europe and North America, but shrinking habitat in China. Our study, thus, demonstrates the complex influences of historical climate‐driven migrations, human activities and future climate changes on the global distribution of an invasive species.

更新日期：2024-12-10

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