DISSERTATION RESEARCH: Fitness landscapes in a recent adaptive radiation of Cyprinodon pupfishes

论文研究：鲤鱼近期适应性辐射的适应度景观

• 批准号: 1010849
• 负责人: Peter Wainwright
• 金额: $ 1.5万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-06-01 至 2012-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1010849&HistoricalAwards=false
• 关键词: DISSERTATION; RESEARCH; Fitness; landscapes; recent

Adaptation is the basis of biodiversity and is an important mechanism that allows species to exploit novel environmental conditions. This study will generate a detailed analysis of the ecological and evolutionary factors that cause and limit adaptation for a group of fishes. The project will measure the relative performance of many shape and size variants from three closely related species of pupfish and their hybrids, following the growth and survival of these fish in pens in their natural environment. Because the species are closely related, they can be readily hybridized to generate a wide variety of shapes and sizes in their offspring that are not found in the wild. These hybrid offspring allow measuring the complete adaptive performance profile for these fish in their natural environment. Understanding of the ecological and evolutionary basis of variation in performance in nature supports prediction of such significant societal issues as which environments are more vulnerable to invasive species, which species are more likely to become invasive, and which species are likely to readily accommodate to environmental changes. The project includes research-based training opportunities for undergraduates and diverse public outreach.

适应是生物多样性的基础，也是物种利用新环境条件的重要机制。这项研究将对导致和限制一组鱼类适应的生态和进化因素进行详细分析。该项目将测量三种密切相关的鳉鱼及其杂交种的许多形状和大小变异的相对性能，跟踪这些鱼在自然环境中的生长和生存。由于这些物种密切相关，因此它们可以很容易地杂交，从而在其后代中产生野生动物所没有的各种形状和大小。这些杂交后代可以测量这些鱼在自然环境中的完整适应性表现。 对自然界表现变化的生态和进化基础的理解支持对诸如哪些环境更容易受到入侵物种的影响、哪些物种更有可能成为入侵物种以及哪些物种可能容易适应环境变化等重大社会问题的预测。 该项目包括为本科生提供基于研究的培训机会和多样化的公共宣传。