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Cultivated alien plants with high invasion potential are more likely to be traded online in China

入侵物种 外星人 分类单元 生物 引进物种 中国 外来物种 生态学 地理 人口 人口普查 社会学 人口学 考古
作者
Ran Dong,Bi‐Cheng Dong,Qiu‐Yue Fu,Qiang Yang,Zhicong Dai,Fang‐Li Luo,Jun‐Qin Gao,Fei‐Hai Yu,Mark van Kleunen
出处
期刊:Ecological Applications [Wiley]
卷期号:34 (1) 被引量:6
标识
DOI:10.1002/eap.2811
摘要

Biological invasions have become a worldwide problem, and measures to efficiently prevent and control invasions are still in development. Like many other parts of the world, China is undergoing a dramatic increase in plant invasions. Most of the currently 933 established (i.e., naturalized) plant species, of which 214 are categorized as invasive, have been introduced into China for cultivation. It is likely that many of those species are still being traded, particularly online, by plant nurseries. However, studies assessing whether naturalized and invasive species are currently being traded more or less than nonnaturalized aliens are rare. We extracted online-trade information for 13,718 cultivated alien plant taxa on 1688.com, the largest website for domestic B2B in China. We analyzed how the presence in online-nursery catalogs, the number of online nurseries that offerred the species for sale, and the product type (i.e., seeds, live plants and vegetative organs) differed among nonnaturalized, naturalized noninvasive, and invasive species. Compared to nonnaturalized taxa, naturalized noninvasive and invasive taxa were 3.7-5.2 times more likely to be available for purchase. Naturalized noninvasive and invasive taxa were more frequently offered as seeds by online nurseries, whereas nonnaturalized taxa were more frequently offered as live plants. Based on these findings, we propose that, to reduce the further spread of invasive and potentially invasive plants, implementation of plant-trade regulations and a monitoring system of the online horticultural supply chain will be essential.
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