Revision and Phylogeographic Analysis of Pacific Island Succineid Land Snails

太平洋岛屿琥珀蜗牛的修订和系统发育地理学分析

• 批准号: 0316308
• 负责人: Robert Cowie
• 金额: $ 40.01万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-01 至 2007-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0316308&HistoricalAwards=false
• 关键词: Revision; Phylogeographic; Analysis; Pacific; Island

A grant has been awarded to Dr. Robert H. Cowie of the University of Hawaii to work on the evolutionary biology of a major group of Pacific island land snails. The project will undertake a systematic revision of about 80 species that occur only on the islands of the Pacific and that are currently disappearing in the wake of habitat destruction and the depredations of alien species. In addition, the project will investigate the evolutionary and geographic origins of the species and the routes via which, over evolutionary time, they have colonized these myriad islands. The investigators will use both traditional analysis of anatomical variation among the different species of snails as well as modern DNA sequencing approaches and analytical methodologies.There are more known species of snails than of any other group of land animals except insects. Understanding the biology of this important component of biodiversity is therefore of basic significance in evolutionary biology, ecology, and conservation. Nowhere, in relation to land area does land snail diversity reach that in the tropical/subtropical Pacific. Although previous studies have investigated the origins and diversification of Pacific island plants and animals, primarily of Hawaii, almost no work on any group has addressed both their geographic origins and their routes of colonization throughout the Pacific. The project therefore has the potential to dramatically advance understanding of Pacific biodiversity and create a model of its overall origins and evolutionary diversification. In addition, graduate and undergraduate students will be trained in techniques ranging from DNA sequencing to modern museum curatorial practices, thereby integrating research with a broad training experience. The undergraduates will likely be from minority community groups. Furthermore, by involving faculty and students from two University of Hawaii campuses, the project will enhance the research base of both and foster valuable collaboration between them.

罗伯特·H博士获得了一笔赠款。夏威夷大学的考伊研究太平洋岛屿陆蜗牛的进化生物学。该项目将对大约80个物种进行系统的修订，这些物种只出现在太平洋岛屿上，目前由于生境的破坏和外来物种的掠夺而正在消失。此外，该项目还将调查该物种的进化和地理起源，以及在进化过程中它们在这些无数岛屿上殖民的路线。研究人员将使用传统的解剖学方法分析不同种类的蜗牛，以及现代的DNA测序方法和分析方法。除了昆虫之外，蜗牛的已知种类比任何其他陆地动物都多。因此，了解生物多样性的这一重要组成部分的生物学在进化生物学、生态学和保护方面具有基本意义。就陆地面积而言，没有任何地方的陆螺多样性达到热带/亚热带太平洋的水平。虽然以前的研究已经调查了太平洋岛屿植物和动物的起源和多样化，主要是夏威夷，几乎没有任何一个群体的工作已经解决了他们的地理起源和整个太平洋的殖民路线。因此，该项目有可能极大地促进对太平洋生物多样性的了解，并创建一个关于其总体起源和进化多样化的模型。此外，研究生和本科生将接受从DNA测序到现代博物馆策展实践的技术培训，从而将研究与广泛的培训经验相结合。这些大学生可能来自少数民族社区。此外，该项目将使夏威夷大学两个校区的教师和学生参与进来，从而加强双方的研究基础，并促进双方之间的宝贵合作。