During the last three decades, CTFS-ForestGEO   (http://www. forestgeo.si.edu/), a worldwide network of over 60 long-term   forest dynamics plots (FDPs), has been established for monitoring of   community dynamics in forest ecosystems and investigation of community   assembly mechanisms (Anderson-Teixeira et al., 2015). To date, millions of   trees representing over 10,000 species have been tagged, mapped, and   identified. The application of well-resolved phylogenies based on the DNA   barcode sequences of species within these communities is substantially improving   our understanding of community assembly mechanisms (Kembel & Hubbell,   2006; Kress et al., 2009; Webb, 2000; Yang et al., 2014). However, although   there are over 60 plots in the CTFS-ForestGEO network, only a few plots have   genetic libraries (Kress et al., 2009; Pei et al., 2015) or community   phylogenies (Erickson et al., 2014; Kress et al., 2009, 2010; Pei et al.,   2011) based on DNA barcodes.

在过去三十年中，CTFS-ForestGEO（http://www.forestgeo.si.edu/）建立了一个由60多个森林持续样地组成的全球网络，用于监测森林生态系统中的群落动态和调查居群的聚集机制（Anderson-Teixeira et al., 2015）。迄今为止，已标记、绘制和鉴定了数百万棵代表10000多种物种的树木。基于这些群落中物种的DNA条形码序列的高分辨率系统发育学的应用，大大提高了我们对群落聚集机制的理解（Kembel & Hubbell, 2006; Kress et al., 2009; Webb, 2000; Yang   et al., 2014）。然而，尽管CTFS-ForestGEO网络中有60多个样地，但只有少数样地具有基于DNA条形码的遗传库（Kress et al., 2009; Pei et al., 2015）或群落系统发育学（Erickson   et al., 2014; Kress et al., 2009, 2010; Pei et al., 2011）。