Bias and error in understanding plant invasion impacts
Bias and error in understanding plant invasion impacts
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DOI：
10.1016/j.tree.2012.10.010
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发表时间：
2013-04-01
影响因子：
16.8
通讯作者：
Vila, Montserrat
中科院分区：
文献类型：
--
作者：
Hulme, Philip E.;Pysek, Petr;Vila, Montserrat
对外来植物影响的定量评估对于为管理层提供信息至关重要，以确保资源优先用于最有问题的物种，并针对受影响最严重的生态系统过程进行恢复。在这里，我们首次对外来植物影响的定量实地研究提出了详细的批评，并强调了目标物种的生物地理学和生命形式、评估的反应以及解决空间变异性的程度方面的偏差。观察到的影响往往无法转化为生态系统服务或环境退化的证据。由于缺乏关于影响的总体假设，降低了全球方法的一致性，并阻碍了预测工具的开发。未来的研究必须确保明确界定物种特征、生态系统储量、生态系统流量以及生态系统服务之间的联系。
Quantitative assessments of alien plant impacts are essential to inform management to ensure that resources are prioritized against the most problematic species and that restoration targets the worst-affected ecosystem processes. Here, we present the first detailed critique of quantitative field studies of alien plant impacts and highlight biases in the biogeography and life form of the target species, the responses assessed, and the extent to which spatial variability is addressed. Observed impacts often fail to translate to ecosystem services or evidence of environmental degradation. The absence of overarching hypotheses regarding impacts has reduced the consistency of approaches worldwide and prevented the development of predictive tools. Future studies must ensure that the links between species traits, ecosystem stocks, and ecosystem flows, as well as ecosystem services, are explicitly defined.