Dissertation Enhancement Grant: Understanding the Evolution of Neotropical Diversity: Implications from Phylogenetic Patterns in Ttwo co-distributed Avian Genera

这个论文增强补助金将支持何塞G。Tello在John M.田野自然历史博物馆的贝茨对分布在巴西新热带低地的两个鸟类谱系的系统地理学进行了详细研究。系统地理学是一门研究系谱地理分布的原理和过程的学科。鸟类（鸟类）分化的系统发育模式内的新热带区，或存在的空间和时间的一致性，这些模式，才刚刚开始研究。这项研究涉及两个独立的鸟类谱系的多样化研究- Cercomacra蚁鸟和Platelochus flyccatchers-使用线粒体和核DNA序列。这一代的进化不仅将阐明该地区的进化历史，而且将有助于阐明不同的生态和行为特征可能在多样化过程中发挥的作用。这一基础研究将构成第一个广泛研究在新热带低地使用多个数据集和多个谱系的地理模式，从而提供了重要的见解在该地区的多样化的历史。

This dissertation enhancement grant will support Jose G. Tello under the direction of Dr. John M. Bates of the Field Museum of Natural History for a detailed study of the phylogeography of two bird lineages distributed throughout the Neotropical lowlands in Brazil. Phylogeography is a field of study concerned with the principles and processes that underlie the geographical distribution of genealogical lineages. Phylogenetic patterns of avian (bird) differentiation within the Neotropics, or the existence of spatial and temporal congruence of those patterns, are just beginning to be studied. This research involves the study of the diversification of two independent avian lineages -- Cercomacra antbirds and Platyrinchus flycatchers -- using mitochondrial and nuclear DNA sequences.The generation of phylogenies will not only shed light on the region's evolutionary history, but also will help to elucidate the roles that different ecological and behavioral traits may have played in the diversification process. This fundamental research will constitute one of the first to extensively examine phylogeographic patterns in the Neotropical lowlands using multiple data sets and multiple lineages, and hence provide important insights into the history of diversification in the region.