COLLABORATIVE RESEARCH: Systematics of a pantropical diversification: the suboscine passerine birds

合作研究：泛热带多样化的系统学：亚色雀形目鸟类

基本信息

批准号：
1146265
负责人：
Robb Brumfield
金额：
$ 36.32万
依托单位：
Louisiana State University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2012
资助国家：
美国
起止时间：
2012-07-01 至 2020-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1146265&HistoricalAwards=false
关键词：
COLLABORATIVE RESEARCH Systematics pantropical diversification

项目摘要

Darwin's finches of the Galápagos Islands stand as one of the most impressive examples of evolution. After colonizing the islands, a single ancestral finch species eventually diversified into 13 species of different sizes, bill shapes, and ecologies. The suboscine passerine birds exhibit a similar history, but their diversification was not limited to a small set of islands; instead they are found throughout South America, Central America, North America, and parts of the Old World. There are now 1,300 species that differ dramatically in body shape and size, feeding behavior, and nest architecture. The primary goal of this project is to use DNA sequences to reconstruct the evolutionary history of these species, and to use this model system to investigate why the tropics are so biologically diverse.A vital component of this collaborative project between U.S. and Brazilian scientists is the research training it will provide. With fieldwork planned in Argentina, Chile, Costa Rica, Malaysia, Venezuela, and Viet Nam, young scientists from a diversity of countries will be exposed not only to a diversity of natural environments but will also interact and forge relationships with their international peers. By working together to reconstruct perhaps the most spectacular evolutionary radiations of birds in the world, the researchers will learn how evolution works on a continental scale while training a new generation of scientists.

达尔文（Darwin）的加拉帕戈斯群岛（GalápagosIslands）的罚款是最令人印象深刻的进化例子之一。殖民这些岛屿后，单个祖先的罚款最终使13种不同尺寸，账单形状和生态的物种多样化。副岛雀形的鸟类表现出相似的历史，但它们的多样化不仅限于一小部分岛屿。取而代之的是在整个南美，中美洲，北美和旧世界的部分地区都发现了它们。现在，有1300种在身体形状和大小，喂食行为和巢结构上截然不同的物种。该项目的主要目的是使用DNA序列重建这些物种的进化历史，并使用该模型系统来研究热带地区为什么在生物学上如此多样化。随着在阿根廷，智利，哥斯达黎加，马来西亚，委内瑞拉和越南计划进行的实地调查，来自各种国家的年轻科学家将不仅暴露于各种自然环境，而且还将与国际同行互动并建立关系。通过共同努力来重建世界上鸟类最壮观的进化辐射，研究人员将在训练新一代科学家的同时学习进化如何连续规模起作用。