DISSERTATION RESEARCH: The relative importance of species, genotype, and trait diversity on ecosystem function of the tall grass prairie under varying environmental conditions

论文研究：不同环境条件下物种、基因型和性状多样性对高草草原生态系统功能的相对重要性

• 批准号: 1011371
• 负责人: Melinda Smith
• 金额: $ 1.49万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-05-01 至 2011-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1011371&HistoricalAwards=false
• 关键词: DISSERTATION; RESEARCH; relative; importance; species

Understanding the importance of biological diversity is critical in the face of unprecedented, anthropogenic global change such as increased introduction of invasive species and land-use change. This research consists of two greenhouse experiments that will provide insight into how diversity is maintained in grasslands, and why this diversity could be important to ecosystem functions such as productivity and invasion resistance. The first experiment will establish competition among genetically distinct individuals to understand how diversity is maintained within a dominant native grass. The second experiment will examine how this genetic diversity prevents establishment of different native and invasive seedlings. Results from this project will inform the preservation of biodiversity, prevention of species invasions, and the enhancement of carbon sequestration in grasslands, an economically and ecologically valuable ecosystem. Results will also be integrated into local environmental education programs to emphasize the importance of preserving biodiversity in native ecosystems. The project will give undergraduate and underrepresented high school students access to hands-on learning about the research process, allowing them to connect scientific research on a growing environmental problem. Finally, funding this project will train a young female scientist.

面对前所未有的人为全球变化，如入侵物种的增加和土地使用的变化，了解生物多样性的重要性至关重要。这项研究包括两个温室实验，将深入了解草原如何保持多样性，以及为什么这种多样性对生态系统功能（如生产力和入侵抵抗力）很重要。第一个实验将建立遗传上不同的个体之间的竞争，以了解多样性是如何保持在一个占主导地位的本地草。第二个实验将研究这种遗传多样性如何防止建立不同的本地和入侵幼苗。该项目的成果将为保护生物多样性、防止物种入侵和加强草原的碳固存提供信息，草原是一个具有经济和生态价值的生态系统。研究结果还将纳入当地环境教育计划，以强调保护当地生态系统生物多样性的重要性。该项目将为本科生和代表性不足的高中生提供有关研究过程的实践学习机会，使他们能够将科学研究与日益严重的环境问题联系起来。最后，资助这个项目将培养一名年轻的女科学家。