ABR: Models of natural selection, development, and life history

ABR：自然选择、发育和生命史模型

• 批准号: 1251035
• 负责人: Steven Frank
• 金额: $ 27.5万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-15 至 2018-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1251035&HistoricalAwards=false
• 关键词: ABR; Models; natural; selection; development

This project will develop evolutionary theories about the characteristics of bacteria and other microbes. Previous work showed the importance of variability in food and other resources over space and time. For example, continuous and predictable resource environments favor microbes that grow slowly and use resources efficiently. By contrast, temporary resource environments favor microbes that compete strongly among themselves, grow rapidly, and use resources inefficiently. Those different patterns of competition and resource use have cascading effects on the surrounding biological communities. In this research, the investigator will test hypotheses about the primary factors that influence key microbial traits. The work requires synthesis of diverse studies from other fields, and the novel theoretical work is expected to create new approaches to fundamental problems in ecology and evolution. Understanding bacterial characters is important, because our bodies carry trillions of bacteria. Recent research shows that those bacteria influence nearly every aspect of our health. Beyond our bodies, studies of soil, plant growth, and cycling of nutrients through ecosystems also show strong influence by numerous and diverse bacteria and other microbes. To understand those microbial inputs, one must study the ecological and evolutionary processes that have influenced the characteristics of the microbes.

该项目将发展有关细菌和其他微生物特征的进化理论。先前的工作表明，在时间和时间上，食物和其他资源的可变性重要性。例如，连续且可预测的资源环境有利于生长缓慢并有效地使用资源的微生物。相比之下，临时资源环境偏爱在彼此之间强烈竞争，迅速发展并使用资源效率低下的微生物。这些不同的竞争和资源使用模式对周围的生物社区产生了级联影响。在这项研究中，研究者将检验有关影响关键微生物特征的主要因素的假设。这项工作需要综合其他领域的各种研究，而新颖的理论工作有望为生态学和进化中的基本问题创造新的方法。了解细菌特征很重要，因为我们的身体携带数万亿个细菌。最近的研究表明，这些细菌几乎影响了我们健康的各个方面。除了我们的身体，对土壤，植物生长的研究以及通过生态系统的养分循环也表现出众多和多样的细菌和其他微生物的强烈影响。要了解这些微生物输入，必须研究影响微生物特征的生态和进化过程。