Dimensions: Roles of Functional, Phylogenetic, and Genetic Diversity in Structuring and Sustaining Plant Communities Through Environmental Change

维度：功能、系统发育和遗传多样性在通过环境变化构建和维持植物群落中的作用

• 批准号: 1046355
• 负责人: Donald Waller
• 金额: $ 293.49万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1046355&HistoricalAwards=false
• 关键词: Dimensions; Roles; Functional; Phylogenetic; Genetic

To understand the origins and dynamics of plant diversity, this project will investigate the evolutionary roots of plant diversity, how plant traits diversified, and how evolutionary history and traits now affect the ability of plants to persist in landscapes subject to climate change, disturbance, and habitat fragmentation. The project focuses on Wisconsin where remarkably detailed data exist on plant distributions and abundances and how these have changed over the past 50+ years. Gene sequences will be used to reconstruct evolutionary relationships. Plant traits will be mapped onto these trees to infer when they evolved, how they changed, and how ancestry and traits affect species success and co-occurrences. Analyses of genome size and genetic variation in some species will show how patterns of local and regional variation relate to dispersal traits, geographic range, habitat fragmentation, and landscape dynamics. Data on historical community changes and climate projections will be used to predict future changes in range and abundance. This project will thus integrate our understanding of how plant traits evolve, how traits relate to ecological success, and how traits interact with phylogeny, genome size, and landscape conditions to affect species persistence and invasions.Plant diversity underlies ecosystem productivity and diversity, yet we still lack a clear picture of why most habitats are losing species while weedy plants are invading. This project will illuminate the mechanisms driving these changes and so improve our ability to manage natural and constructed ecosystems wisely. The trait and sequence data will also enhance national databases, facilitating further research. The project will contribute substantially to human resources by training cadres of undergraduate, graduate and post-doctoral researchers in a broad set of skills related to biodiversity science.

为了了解植物多样性的起源和动态，该项目将调查植物多样性的进化根源，植物性状如何多样化，以及进化历史和性状现在如何影响植物在气候变化，干扰和栖息地破碎化的景观中持续存在的能力。 该项目的重点是威斯康星州，那里有关于植物分布和丰度的非常详细的数据，以及这些数据在过去50多年里是如何变化的。 基因序列将被用来重建进化关系。 植物特征将被映射到这些树上，以推断它们何时进化，如何变化，以及祖先和特征如何影响物种的成功和共同出现。一些物种的基因组大小和遗传变异的分析将显示当地和区域的变化模式与传播特征，地理范围，栖息地破碎化和景观动态。 关于历史群落变化和气候预测的数据将用于预测范围和丰度的未来变化。 因此，该项目将整合我们对植物性状如何进化的理解，性状如何与生态成功相关，以及性状如何与植物发生，基因组大小和景观条件相互作用以影响物种的持久性和入侵。植物多样性是生态系统生产力和多样性的基础，但我们仍然缺乏一个清晰的画面，为什么大多数栖息地正在失去物种，而杂草植物入侵。 该项目将阐明驱动这些变化的机制，从而提高我们明智地管理自然和人工生态系统的能力。 性状和序列数据还将加强国家数据库，促进进一步研究。 该项目将通过培训本科生、研究生和博士后研究人员掌握与生物多样性科学有关的广泛技能，为人力资源作出重大贡献。

项目成果

Adaptive associations among life history, reproductive traits, environment, and origin in the Wisconsin angiosperm flora

• DOI: 10.1002/ajb2.1578
• 发表时间: 2020-12-14
• 期刊: AMERICAN JOURNAL OF BOTANY
• 影响因子: 3
• 作者: Givnish, Thomas J.;Kriebel, Ricardo;Sytsma, Kenneth J.
• 通讯作者: Sytsma, Kenneth J.