Learning from failures: testing broad taxonomic hypotheses about plant naturalization
Learning from failures: testing broad taxonomic hypotheses about plant naturalization
复制标题
DOI：
10.1111/j.1461-0248.2009.01376.x
复制
发表时间：
2009-11-01
期刊：
影响因子：
8.8
通讯作者：
Duncan, Richard P.
中科院分区：
文献类型：
--
作者：
Diez, Jeffrey M.;Williams, Peter A.;Duncan, Richard P.
我们对植物归化的广泛分类模式的理解完全基于对成功归化的观察。然而，忽略失败可能会因将引进和入籍的概率混为一谈而引入偏见。在这里，我们使用新西兰和澳大利亚成功和失败的植物归化的两个综合数据集，对几种主要入侵假设进行了独特的全植物区系比较测试。首先，我们表明，尽管环境存在差异，但一些类群在这两个国家的归化方面始终更加成功。广泛的气候起源有助于解释两国成功率的一些差异。我们进一步表明，与达尔文的归化假说相反，在这两个国家，具有本地亲戚的物种通常更成功，但这种效果在两国的家庭之间并不一致。最后，我们表明，与仅基于成功归化的研究相反，岛屿本质上不一定比大陆更难以入侵。
Our understanding of broad taxonomic patterns of plant naturalizations is based entirely on observations of successful naturalizations. Omission of the failures, however, can introduce bias by conflating the probabilities of introduction and naturalization. Here, we use two comprehensive datasets of successful and failed plant naturalizations in New Zealand and Australia for a unique, flora-wide comparative test of several major invasion hypotheses. First, we show that some taxa are consistently more successful at naturalizing in these two countries, despite their environmental differences. Broad climatic origins helped to explain some of the differences in success rates in the two countries. We further show that species with native relatives were generally more successful in both countries, contrary to Darwin's naturalization hypothesis, but this effect was inconsistent among families across the two countries. Finally, we show that contrary to studies based on successful naturalizations only, islands need not be inherently more invasible than continents.