NSF Postdoctoral Fellowship in Biology FY 2011

2011 财年 NSF 生物学博士后奖学金

• 批准号: 1103593
• 负责人: Clayton Cressler
• 金额: $ 12.3万
• 依托单位: Cressler Clayton E
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-12-01 至 2013-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1103593&HistoricalAwards=false
• 关键词: NSF; Postdoctoral; Fellowship; Biology; FY

This action funds an NSF Postdoctoral Research Fellowship in Biology for FY 2011, Intersections of Biology and Mathematical and Physical Sciences. The fellowship supports a research and training plan in a host laboratory for the Fellow at the intersection of biology with mathematics. The title of the research and training plan for this fellowship to Clayton Cressler is "A theoretical-empirical approach to life history evolution under joint starvation and predation risks in Daphnia." The host institution for this fellowship is Queen's University with sponsoring scientists Drs. William Nelson and Troy Day.The need to avoid starvation, on one hand, and to avoid predation, on the other, are two of the strongest selective forces acting on animal populations. Furthermore, many traits affect an organism's interaction with both its resources and its predators, so starvation and predation risk will often jointly affect trait evolution. However, very little is known about the relative importance of each risk to trait evolution for any organism. Disentangling the interaction between starvation and predation risk requires an intimate dialogue between biological experiment and mathematical theory. This project employs such a dialogue to (1) gain insight into how different resource and predator environments drive selection on life history in the zooplankter Daphnia pulex; (2) identify the traits most strongly influenced by each force; and (3) explore how feedbacks between resources, predation, and life history contribute to the coexistence of different Daphnia genotypes. Training objectives include learning experimental techniques for the model organism Daphnia pulex, using empirical data to parameterize dynamical models at both the individual- and population-levels, and rigorously confronting these models with novel experimental data that definitively test model predictions or point out the need for better models. Data will be shared with the Daphnia Genome Consortium for public use. Broader impacts include mentoring undergraduates from both mathematics and biology to work across disciplinary boundaries, a crucial skill for tackling the complexity of natural systems.

这一行动为2011财年的NSF生物学博士后研究奖学金提供资金，生物学与数学和物理科学的交叉点。该研究金支持研究员在生物学与数学交叉点的主办实验室的研究和培训计划。该奖学金的研究和培训计划的标题为克莱顿Cressler是“一个理论-经验的方法，生活史进化下的联合饥饿和捕食风险的水蚤。“这项奖学金的主办机构是女王大学，赞助科学家是威廉纳尔逊博士和特洛伊戴博士。一方面，避免饥饿的需要，另一方面，避免捕食，是作用于动物种群的两种最强的选择力量。此外，许多性状会影响生物体与其资源和捕食者的相互作用，因此饥饿和捕食风险往往会共同影响性状的进化。然而，很少有人知道每一个风险的相对重要性，以性状进化的任何生物。 解开饥饿和捕食风险之间的相互作用需要生物实验和数学理论之间的密切对话。 本项目采用这样的对话（1）深入了解不同的资源和捕食者环境如何驱动选择的动物园蚤状蚤的生活史;（2）确定最强烈的影响，每种力量的特征;（3）探索资源，捕食和生活史之间的反馈如何有助于不同的水蚤基因型的共存。培训目标包括学习模式生物蚤状水蚤的实验技术，使用经验数据在个人和群体水平上参数化动力学模型，并严格面对这些模型与新的实验数据，明确测试模型预测或指出需要更好的模型。 数据将与水蚤基因组联盟共享，供公众使用。 更广泛的影响包括指导数学和生物学的本科生跨越学科界限，这是解决自然系统复杂性的关键技能。