U.S.-Brazil Dissertation Enhancement Research: Phylogeography of Proceratophrys Boiei and Hyla Geographica (Amphibia, Anura) in Rainforest Fragments of Northeastern Brazil

美国-巴西论文强化研究：巴西东北部雨林碎片中 Proceratophrys Boiei 和 Hyla Geographica（两栖类、无尾目）的系统发育地理学

• 批准号: 0091511
• 负责人: John Bates
• 金额: $ 2.24万
• 依托单位: University of Chicago
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-02-15 至 2003-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0091511&HistoricalAwards=false
• 关键词: U.S.; Brazil; Dissertation; Enhancement; Research

This dissertation enhancement grant will support Ana C. Carnaval under the direction of Dr. John M. Bates of the University of Chicago, for a detailed study of phylogeography and population genetics of two species of forest frogs in northeastern Brazil. Thirteen populations of tree frog and ten of the litter frog will be compared for the effects of geographic distance, fragment age, and size on local levels of genetic diversity. The main goal of these studies is to assess the impact of natural and human-made forest fragmentation on the population genetics of these species, by assessing levels of mitochondrial and nuclear DNA polymorphisms. These frog species being examined inhabit fragments of Atlantic rainforest, an important vegetational type that may be more endangered than the familiar Amazonian forest. The study will elucidate patterns of genetic diversity in Brazilian forests, and the research has the potential to shed light on the history of this region and inform local conservation practices. The results likely will have relevance to conservation biology, population genetics, and systematic biology.

这项论文增强赠款将在芝加哥大学约翰·贝茨博士的指导下支持Ana C. carnaval，以详细研究巴西东北部的两种森林青蛙的植物地理学和种群遗传学。将比较13种树蛙和十只窝青蛙的种群，以地理距离，碎片年龄和大小对遗传多样性的局部水平的影响进行比较。 这些研究的主要目的是通过评估线粒体和核DNA多态性水平来评估自然和人为森林破碎对这些物种种群遗传学的影响。 这些青蛙物种正在研究大西洋雨林的居住碎片，这是一种重要的植被类型，可能比熟悉的亚马逊森林更濒危。 这项研究将阐明巴西森林中遗传多样性的模式，该研究有可能阐明该地区的历史并为当地的保护实践提供信息。 结果可能与保护生物学，人群遗传学和系统生物学有关。