Integrative Taxonomy and Biogeography of Criconematidae

环线虫科的综合分类学和生物地理学

基本信息

批准号：
1145440
负责人：
Thomas Powers
金额：
$ 52.86万
依托单位：
University of Nebraska-Lincoln
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2012
资助国家：
美国
起止时间：
2012-06-15 至 2016-05-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1145440&HistoricalAwards=false
关键词：
Integrative Taxonomy Biogeography Criconematidae

项目摘要

Nematodes are frequently considered the most diverse, abundant, and ubiquitous animals on earth. This assertion however, is not strongly supported by the number of formally described species. The gap between formally recognized species and species yet to be discovered has been referred to as the "biodiversity identification gap." This gap is thought to exist due to difficulties in identifying diagnostic characters in nematodes, overlapping intra- and inter-specific variation, and the lack of taxonomists engaged in the activity of species discovery and description. An important factor that has not been generally addressed is the actual process of species delimitation in the field of nematology. This proposal focuses on the role of species delimitation through an integrated taxonomic examination of a select group of soil-dwelling, plant parasitic nematodes in the family Criconematidae. The species delimitation process will improve our ability to diagnose nematode species and contribute to the development of a plant-parasitic nematode biogeography. The project will incorporate young aspiring scientists and citizen scientists using nematodes as a bridge to the microbial world. Together with the nonprofit organization Discover Life in America, surveys and workshops will be conducted at Great Smoky Mountains National Park, serving as a model for other parks and preserves.

线虫通常被认为是地球上最多样化、最丰富且无处不在的动物。然而，这一断言并没有得到正式描述的物种数量的有力支持。正式认可的物种和尚未发现的物种之间的差距被称为“生物多样性识别差距”。这种差距被认为是由于鉴定线虫诊断特征的困难、种内和种间变异的重叠以及缺乏从事物种发现和描述活动的分类学家而存在。尚未普遍解决的一个重要因素是线虫学领域物种界定的实际过程。该提案的重点是通过对 Criconematidae 科中一组选定的土壤栖息植物寄生线虫进行综合分类学检查来确定物种界限的作用。物种界定过程将提高我们诊断线虫物种的能力，并有助于植物寄生线虫生物地理学的发展。该项目将吸收有抱负的年轻科学家和公民科学家，利用线虫作为通向微生物世界的桥梁。将与非营利组织“发现美国生活”一起在大烟山国家公园进行调查和研讨会，为其他公园和保护区树立榜样。