U.S.-Australia Dissertation Enhancement: Adaptive and Non-Adaptive Radiation in Australian Desert Lizards

美国-澳大利亚论文增强：澳大利亚沙漠蜥蜴的自适应和非自适应辐射

基本信息

批准号：
0612855
负责人：
Irby Lovette
金额：
$ 1.9万
依托单位：
Cornell Univ - State: AWDS MADE PRIOR MAY 2010
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2006
资助国家：
美国
起止时间：
2006-09-01 至 2008-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0612855&HistoricalAwards=false
关键词：
U.S.Australia Dissertation Enhancement Adaptive

项目摘要

0612855LovetteThis award supports a dissertation enhancement project to enable Dr. Irby Lovette at Cornell University in New York to collaborate with Dr. Mark Hutchinson at the South Australian Museum in Adelaide and Dr. Mark Cowan at the Western Australia Department of Conservation and Land Management located in Kalgoorlie. The project will facilitate a collaboration on adaptive and non-adaptive radiation in Australian desert lizards. The extent to which major evolutionary radiations are driven by adaptive and non-adaptive processes is a critical but unanswered question in evolutionary biology. Adaptive radiation implies a prominent role for interspecific interactions and ecological opportunity in species proliferation and phenotypic divergence. In contrast, non-adaptive radiation may involve diversification due to sexual selection or biogeographic processes, resulting in species proliferation without divergence in ecology. The role of adaptive radiation in the assembly of continental biotas is largely unknown. Although most biological diversity occurs in continental systems, relatively few studies have used rigorous phylogenetic and comparative methods to understand the causes of ecological and phenotypic divergence during major evolutionary radiations. The proposed research will employ a comparative phylogenetic approach to investigate the role of adaptive and non-adaptive radiation in the diversification of the Australian lizard genus (Ctenotus), one of the most speciose terrestrial vertebrate genera on Earth. The research will help address whether evolutionary mechanisms that predominate in insular systems can be generalized to continental diversification. The project will include a graduate student who will have the opportunity to receive a global research experience. It is anticipated that these collaborations between the scientists and students from each country will lead to long-term collaborations that will benefit all the institutions.

0612855lovettethis Award支持一个论文增强项目，以使纽约康奈尔大学的Irby Lovette博士与阿德莱德南澳大利亚博物馆的Mark Hutchinson博士和位于Kalgoorlie的西澳大利亚州保护和土地管理部的Mark Cowan博士合作。该项目将促进澳大利亚沙漠蜥蜴的适应性和非自适应辐射的合作。在进化生物学中，自适应和非自适应过程的主要进化辐射是由自适应和非自适应过程驱动的程度。自适应辐射意味着在物种增殖和表型差异中种间相互作用和生态机会的重要作用。相反，非自适应辐射可能涉及性选择或生物地理过程导致的多样化，从而导致物种增殖而没有生态学差异。自适应辐射在大陆生物群集合中的作用在很大程度上是未知的。尽管大多数生物学多样性发生在大陆系统中，但相对较少的研究使用了严格的系统发育和比较方法来了解主要进化辐射过程中生态和表型差异的原因。拟议的研究将采用一种比较的系统发育方法来研究适应性和非自适应辐射在澳大利亚蜥蜴属（Ctenotus）多样化中的作用，澳大利亚蜥蜴属（Ctenotus）是地球上最具体的陆脊椎动物属之一。这项研究将有助于解决占主导地位的进化机制是否可以推广到大陆多样化。该项目将包括一个研究生，他们将有机会获得全球研究经验。可以预料，科学家与每个国家的学生之间的这些合作将导致长期合作，从而使所有机构受益。