Central European plant species from more productive habitats are more invasive at a global scale
Central European plant species from more productive habitats are more invasive at a global scale
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DOI：
10.1111/j.1466-8238.2011.00754.x
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发表时间：
2013-01-01
影响因子：
6.4
通讯作者：
Fischer, Markus
中科院分区：
文献类型：
--
作者：
Dostal, Petr;Dawson, Wayne;Fischer, Markus
目的越来越多的证据表明，物种可能预先适应新的范围内的入侵成功。鉴于全球养分积累的增加，一个重要的候选人的入侵性预适应是在营养丰富的栖息地生长的能力。因此，我们测试了来自中欧的全球入侵物种是否来自生产力更高而不是生产力较低的栖息地。另一个重要的候选预适应的侵入性是大的生态位宽度。因此，我们还测试了能够在更广泛的生产力范围内跨越栖息地生长的物种是否更具侵略性。位置全球相对于入侵性，中欧相对于研究物种的起源。方法：我们研究了平均栖息地生产力及其宽度是否是中欧物种作为外来物种和世界其他地方杂草的成功的重要预测因素，基于全球杂草简编中的数据。这两个栖息地生产力的措施来自营养指标值（后Ellenberg）的伴随物种的综合捷克国家植物社会学数据库的植被记录。在分析中，我们占物种之间的系统发育相关性和本地分布范围的大小。结果物种从更富有成效的栖息地和更广泛的原生栖息地生产力生态位在中欧有更高的外来成功在世界其他地方。物种的杂草化程度随着平均生境生产力的增加而增加。生态位宽度也是一个重要的决定因素，杂草的物种，他们主要发生在营养贫乏的栖息地，但不为那些从营养丰富的栖息地。主要结论我们的研究结果表明，中欧植物物种的生产性栖息地和营养不良的栖息地与广泛的生产力生态位的物种是预先适应成为入侵。这些结果表明，许多中欧物种在全球范围内的成功入侵很可能是由全球资源丰富的栖息地的增加所促进的。
Aim Accumulating evidence indicates that species may be pre-adapted for invasion success in new ranges. In the light of increasing global nutrient accumulation, an important candidate pre-adaptation for invasiveness is the ability to grow in nutrient-rich habitats. Therefore we tested whether globally invasive species originating from Central Europe have come from more productive rather than less productive habitats. A further important candidate pre-adaptation for invasiveness is large niche width. Therefore, we also tested whether species able to grow across habitats with a wider range of productivity are more invasive. Location Global with respect to invasiveness, and Central European with respect to origin of study species. Methods We examined whether average habitat productivity and its width across habitats are significant predictors of the success of Central European species as aliens and as weeds elsewhere in the world based on data in the Global Compendium of Weeds. The two habitat productivity measures were derived from nutrient indicator values (after Ellenberg) of accompanying species present in vegetation records of the comprehensive Czech National Phytosociological Database. In the analyses, we accounted for phylogenetic relatedness among species and for size of the native distribution ranges. Results Species from more productive habitats and with a wider native habitat-productivity niche in Central Europe have higher alien success elsewhere in the world. Weediness of species increased with mean habitat productivity. Niche width was also an important determinant of weediness for species with their main occurrence in nutrient-poor habitats, but not for those from nutrient-rich habitats. Main conclusions Our results indicate that Central European plant species from productive habitats and those species from nutrient-poor habitat with wide productivity-niche are pre-adapted to become invasive. These results suggest that the world-wide invasion success of many Central European species is likely to have been promoted by the global increase of resource-rich habitats.