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，并且是一种重要的机制，可允许物种利用新颖的环境条件。这项研究将对一组鱼类的生态和进化因素进行详细分析。该项目将在这些鱼类在自然环境中这些鱼的生长和生存之后，衡量来自三种密切相关的pup鱼及其杂种的许多形状和大小变体的相对性能。由于该物种密切相关，因此可以很容易地杂交以在其后代中产生各种形状和大小，这些形状和大小在野外未发现。这些混合后代可以在自然环境中测量这些鱼的完整自适应性能概况。 对自然表现差异的生态和进化基础的了解支持了对哪些环境更容易受到入侵物种的重要社会问题的预测，而这种物种更容易成为侵入性，哪些物种很可能很容易适应环境变化。 该项目包括基于研究的培训机会和多样化的公共宣传。