Biodiversity of Caddisflies (Trichoptera) in the Interior Highlands of North America

北美内陆高地石蛾（毛翅目）的生物多样性

• 批准号: 9200895
• 负责人: Kenneth Stewart
• 金额: $ 5.36万
• 依托单位: University of North Texas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-07-01 至 1996-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9200895&HistoricalAwards=false
• 关键词: Biodiversity; Caddisflies; Trichoptera; Interior; Highlands

Caddisflies are one of the dominant, beneficial orders of insects in most Nearctic stream and lake ecosystems. They constitute a major component in the diet of fishes, and are therefore important to sport and commercial fisheries management. Caddisflies are also important pollution indicator organisms, because most species are intolerant of adverse water quality. Insects and other invertebrates account for an estimated 90% of the earth's animal biomass and 95% of all animal species. They undergird the world's biological systems, and are critical to maintenance of those systems. This study will survey and document for the first time the biodiversity of this important group of insects in the Interior Highlands. This mountainous region is an important biogeographical link between the Appalachian and Rocky Mountain chains. The research will provide the first major treatment of caddisfly biodiversity for any major mountain region of North America, and will correlate caddisfly species with geological, physiographic, hydrological and vegetational characteristics of the region. Correlations of species with environmental parameters will be made, using Geographic Information System (GIS) computer program. The study will greatly enhance our knowledge of caddisflies in the region and allow aquatic ecologists and fisheries scientists to make predictive inference as to which Trichoptera species can be expected in certain types of aquatic systems.

在大多数新北极的溪流和湖泊生态系统中，球蝇是一种优势的、有益的昆虫。它们是鱼类饮食的主要组成部分，因此对体育和商业渔业管理很重要。球虱也是重要的污染指示生物，因为大多数种类对不良水质不耐受。昆虫和其他无脊椎动物约占地球动物生物量的90%，占所有动物物种的95%。它们是世界生物系统的基础，对维持这些系统至关重要。本研究将首次对内陆高地这一重要昆虫类群的生物多样性进行调查和记录。这个山区是阿巴拉契亚山脉和落基山脉之间重要的生物地理联系。这项研究将首次对北美任何主要山区的球虱生物多样性进行重大处理，并将球虱物种与该地区的地质、地理、水文和植被特征联系起来。利用地理信息系统（GIS）计算机程序进行物种与环境参数的相关性分析。这项研究将大大提高我们对该地区热蝇的认识，并使水生生态学家和渔业科学家能够对某些类型的水生系统中可能存在的毛翅目物种做出预测推断。