Dissertation Research: Adaptive Radiation of Greater Antillean Anolis

论文研究：大安的列斯安乐利斯的适应性辐射

• 批准号: 9423473
• 负责人: Jonathan Losos
• 金额: $ 0.8万
• 依托单位: Washington University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-04-15 至 1997-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9423473&HistoricalAwards=false
• 关键词: Dissertation; Research; Adaptive; Radiation; Greater

9423473 LOSOS While there have many studies of adaptive radiations, comparing the characteristics of one species to another, to date there has never been an investigation of the role of male vs. female specialization in the generation of biological diversity. Males and females are often very different in ecologically important ways, such as extreme differences in body size, behavior, diets, or habitat. To understand diversity and the environmental variables important to its maintenance, it is important to consider specializations between sexes as well as between species. Accurately understanding the amount and patterns of diversity in the natural world is becoming increasingly critical for conservation efforts. With limited resources, management decisions must not only be well informed but also gain the most efficiency with the funds and lands available. This project will determine to what extent such specializations contribute to diversity within the adaptive radiation of Anolis. Differences in diet, behavior, body design, and habitat use will be compared in fifteen species of Anolis. Data will be collected by behavioral observations, habitat censuses, and examination od stomach contents. The radiations of Anolis have occurred independently on two islands, which provides enhanced power to statistical analyses. In addition, the relationships among the species are well-understood.

虽然有许多关于适应性辐射的研究，比较了一个物种与另一个物种的特征，但迄今为止，还没有对雄性和雌性专业化在生物多样性产生中的作用进行过调查。雄性和雌性通常在重要的生态方面有很大的不同，比如体型、行为、饮食或栖息地的巨大差异。为了理解多样性和维持多样性的重要环境变量，考虑性别之间和物种之间的特化是很重要的。准确了解自然界多样性的数量和模式对保护工作变得越来越重要。在资源有限的情况下，管理决策不仅要充分了解情况，而且要利用现有的资金和土地获得最高效率。该项目将确定这种专业化在多大程度上有助于Anolis适应性辐射的多样性。本研究将比较15种斑蝽在饮食、行为、体型设计和生境利用方面的差异。数据将通过行为观察、栖息地普查和胃内容物检查来收集。Anolis的辐射在两个岛屿上独立发生，这为统计分析提供了增强的力量。此外，物种之间的关系也很好理解。