PEET: Monographic revision of taxa of marine pulmonates (Mollusca, Gastropoda)

这个项目将包括检查生物多样性和进化关系的siphonariid腹足类动物，在世界各地的海岸发现的像帽贝的蜗牛。这些蜗牛是不寻常的，因为它们是靠肺呼吸的蜗牛，用“肺”呼吸，而不是大多数海洋蜗牛典型的鳃，这使得它们很难被置于进化框架中。该项目将在很大程度上依赖于博物馆收藏的标本，还将包括前往新加坡收集新材料和培训学生实地技术。物种的确定和描述以及这些物种之间更高层次的关系将使用形态学和DNA序列数据进行。这类蜗牛从未被彻底研究过，对其进行分类修订是了解这类蜗牛真正多样性的唯一途径。这个项目将增强我们对肺螺关系的理解，并解决有关水生和陆地栖息地之间进化过渡的问题（肺螺成功地生活在陆地，淡水和海洋中）。这项工作将作为一个案例研究，讨论在分类学和生物多样性研究中普遍感兴趣的概念问题。将通过一系列实地、实验室和外联活动将教育和研究结合起来，并将作出特别努力，将科学界代表性不足的群体的成员纳入其中。结果将以文章和专著的形式发表，以计算机为基础的活动也将纳入该项目。

This project will involve examinations of the biodiversity and evolutionary relationships of siphonariid gastropods, limpet-like snails that are found on sea shores worldwide. These snails are unusual in that they are pulmonate snails that breathe with a 'lung', rather than the gills typical of most marine snails, making them difficult to place in an evolutionary framework. The project will rely heavily on specimens present in museum collections and will also involve an expedition to Singapore to collect new material and train students in field techniques. The determination and description of species and the higher level relationships among these species will be made using morphology and DNA sequence data. This group of snails has never been thoroughly examined and a taxonomic revision is the only way to learn about the group's true diversity. This project will enhance our understanding of pulmonate snail relationships and address questions about the evolutionary transitions between aquatic and terrestrial habitats (pulmonates successfully live on land, in freshwater and in the sea). This work will serve as a case study for the discussion of conceptual issues of general interest in taxonomy and biodiversity research. Education and research will be integrated through a series of field, laboratory and outreach activities, and special efforts will be made to include members of groups underrepresented in science. Results will be published as articles and monographs and computer-based activities are integrated within the project.