In the present study, large-scale genetic diversity and population structure of C. mollissima natural populations were investigated by using microsatellite markers. High level of genetic diversity had been observed in C. mollissima natural populations, and most of the total genetic variation occurred within rather than among the populations. Among the four sampling regions (central, eastern, southwestern and northwestern China), a higher level of genetic diversity was found in populations from central China, and the populations from southwestern China was found to be the lowest. Combining with previous research, it could be inferred that the Shennongjia and neighboring area was the modern center of the genetic diversity of C. mollissima. Gene flow model may have impact on population history of C. mollissima as gene flow-drift equilibrium test confirmed, but most pairwise differentiantion were significant, suggesting adaptive differentiation may occur in C. mollissima natural populations. Natural selection may play a more important role in the evolution of the plant. No significant association between genetic distance and geographic distance was detected by Mantel test. The UPGMA tree based on Nei`s unbiased genetic distance was not absolutely consistent with the geographical distribution of the populations, suggesting no significant genetic boundary exsited beween different geography regions. The delineation of ecological zones lacked molecular evidence.
本文采用微卫星分子标记，从大尺度地理格局对中国板栗自然居群的遗传多样性和遗传结构进行了分析，结果表明中国板栗自然居群具有丰富的微卫星遗传多样性，且遗传变异主要存在于居群内；华中地区的中国板栗自然居群的遗传多样性最高，其次为西北地区和华东地区，而西南地区遗传多样性最低，在综合前人研究的基础上，推测神农架及其周边地区为现代中国板栗的遗传多样性中心；基因流－漂变平衡检测结果表明基因流模型对居群历史产生了影响，然而大部分居群间的遗传分化均为显著，暗示中国板栗自然居群间可能存在适应性分化，自然选择作用对中国板栗群体遗传分化的影响可能比基因流作用的影响更明显；遗传距离与地理距离之间无显著相关性；UPGMA聚类分析结果与其地理分布格局并不吻合，说明不同地理区域的中国板栗自然居群间在遗传上并没有明显的界限，对中国板栗生态区的划分缺乏分子证据。
Mappingthe geographic distribution of Aglaia bourdillonii Gamble, anendemic and threatened plant, using ecological niche modeling.
近年来，由世界40多个机构和组织共同合作和参与的网络生命大百科全书(Encyclopedia of Life：简称EOL)项目向我们展示一个可以在全球、地区和国家水平上使用统一的工具、标准来整合分散的生物多样性基础信息的机会。
Mapping the geographic distribution of Aglaia bourdillonii Gamble, an endemic and threatened plant, using ecological niche modeling.
那就是为地球上已知的每一个生物物种建立一个网页，这个网页将展现该物种从分类、形态、地理分布、生态、进化等宏观研究，到DNA条形码、分子、遗传等微观研究，以及利用和保护等百科全书式的信息集合，并且通过由文本、图像、多媒体、GIS等多种技术手段来展现展现丰富的生物多样性信息(Wilson，2003)。
Geographic Distribution Patterns of Pollen Types in Polygonaceae of China and Their Relationship to Ecological Factors
中国蓼科花粉类型的地理分布格局及其与生态因子的关系
In this paper, the ecological and economic value of Betula alnoides was systematically demonstrated as well as its geographic distribution, growth property and adapt ecological conditions.
文章系统介绍了西南桦的生态和经济价值，地理分布及其生长特性与适生环境条件等生物生态学特性；
The composition and geographic distribution of climbing plants are important aspects of ecological study, but research on temperate climbing plants is relatively limited.
藤本植物的组成及其地理分布是藤本植物生态学研究的重要内容之一，但对温带藤本植物的相关研究相对缺乏。
A huge difference exist in the DNA C-values of different plant taxa and life forms, which is in relation to their geographic distribution, ecological adaptation, and invasive ability and so on.
植物的DNAC-值在不同的分类群和生活型之间存在巨大差异，这种差异与地理分布、生态适应、植物的入侵能力等有一定的相关性。