No saturation in the accumulation of alien species worldwide.
No saturation in the accumulation of alien species worldwide.
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DOI：
10.1038/ncomms14435
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发表时间：
2017-02-15
影响因子：
16.6
通讯作者：
Essl F
中科院分区：
文献类型：
--
作者：
Seebens H;Blackburn TM;Dyer EE;Genovesi P;Hulme PE;Jeschke JM;Pagad S;Pyšek P;Winter M;Arianoutsou M;Bacher S;Blasius B;Brundu G;Capinha C;Celesti-Grapow L;Dawson W;Dullinger S;Fuentes N;Jäger H;Kartesz J;Kenis M;Kreft H;Kühn I;Lenzner B;Liebhold A;Mosena A;Moser D;Nishino M;Pearman D;Pergl J;Rabitsch W;Rojas-Sandoval J;Roques A;Rorke S;Rossinelli S;Roy HE;Scalera R;Schindler S;Štajerová K;Tokarska-Guzik B;van Kleunen M;Walker K;Weigelt P;Yamanaka T;Essl F
尽管在过去的几个世纪里，关于人类介导的物种交换的研究已经大大加强，但令人惊讶的是，我们对外来物种跨地区和跨类群积累的时间动态知之甚少。使用一个新的数据库，其中包含16,926个已建立的外来物种的45,813个首次记录，我们表明，在过去200年中，全球首次记录的年率有所增加，最近报告的所有首次记录中有37%是最近报告的(1970-2014)。洲际和分类间的差异在很大程度上可以归因于19世纪欧洲定居者的散居和20世纪贸易的加速。对于所有的分类类群，外来物种数量的增加并没有显示出任何饱和的迹象，大多数分类群甚至显示出随着时间的推移首次记录的比率增加。这突出表明，过去缓解入侵的努力还不够有效，无法跟上日益增长的全球化。外来动植物物种可能会入侵地球上的新区域。这项研究对过去200年外来物种引进的时间动态和空间模式进行了全球分析，并报告这些入侵的速度没有饱和。
Although research on human-mediated exchanges of species has substantially intensified during the last centuries, we know surprisingly little about temporal dynamics of alien species accumulations across regions and taxa. Using a novel database of 45,813 first records of 16,926 established alien species, we show that the annual rate of first records worldwide has increased during the last 200 years, with 37% of all first records reported most recently (1970–2014). Inter-continental and inter-taxonomic variation can be largely attributed to the diaspora of European settlers in the nineteenth century and to the acceleration in trade in the twentieth century. For all taxonomic groups, the increase in numbers of alien species does not show any sign of saturation and most taxa even show increases in the rate of first records over time. This highlights that past efforts to mitigate invasions have not been effective enough to keep up with increasing globalization. Alien species of animals and plants can invade new regions of the earth. This study performs a global analysis of temporal dynamics and spatial patterns of alien species introductions over the past 200 years, and reports no saturation in the rate at which these invasion are increasing.