Collaborative Research: After the Bridgerian Crash: An Integrated Analysis of Mammalian Paleocommunities and Paleoecologies During the Middle Eocene.

合作研究：布里奇里亚崩溃之后：始新世中期哺乳动物古群落和古生态的综合分析。

• 批准号: 2011698
• 负责人: Paul Murphey
• 金额: $ 12.31万
• 依托单位: San Diego Society of Natural History
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-05-15 至 2025-04-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2011698&HistoricalAwards=false
• 关键词: Collaborative; Research; After; Bridgerian; Crash

The modern climatic crisis appears unprecedented as it represents a spike in global warming during an overall cooling period that began during glacial times. Yet, numerous rapidly occurring global warming events are recorded in deep time. This project will study how ecosystems respond to extreme warming by investigating changes in mammalian diversity, vegetation, and soil development in ~45 million-year-old deposits found in northeastern Utah. The results of this work will provide an opportunity to use the past to understand the present response of mammalian and plant communities to rapid warming events in the long term, information that is critical for the management of habitat resources. Additional broader impacts of this study include the development of scientific expertise in undergraduate students; science outreach at multiple museums via exhibits and modules; sharing data, methods, and results via scientific dissemination, open access publications and social media; and curriculum development for K-12 students.The Middle Eocene Climatic Optimum (MECO), increased global surface temperatures by 4 degrees Celsius, which is the same increase predicted for our modern climatic crisis by 2100. The goal of this project is to generate a multi-faceted model that will correlate patterns of biotic change bracketing the MECO and thus learn more about a warming event that is similar in thermal scope to our own. This will be accomplished by integrating stratigraphic and geochemical data with biostratigraphic and ecomorphological analyses to evaluate changes in habitat and mammalian community structure in the Uinta Basin, Utah, before, during, and after the MECO event. To achieve the project goals a team of sedimentologists, geochemists, palynologists, and paleontologists will use their integrated approach to evaluate how ecosystems responded to an extreme warming event. The success of this integrated approach is expected to transform our knowledge of mammalian species and habitat response to a global warming event.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

现代气候危机似乎是史无前例的，因为它代表着全球变暖在冰川时代开始的全面降温期内激增。然而，大量迅速发生的全球变暖事件是在很深的时间内被记录下来的。该项目将通过调查犹他州东北部发现的4500万年前沉积物中哺乳动物多样性、植被和土壤发育的变化，来研究生态系统如何应对极端变暖。这项工作的结果将提供一个机会，利用过去了解哺乳动物和植物群落目前对长期快速变暖事件的反应，这些信息对于生境资源的管理至关重要。这项研究的其他更广泛的影响包括本科生的科学专业知识的发展；通过展品和模块在多个博物馆进行科学推广；通过科学传播、开放获取出版物和社交媒体共享数据、方法和结果；以及为K-12学生开发课程。中始新世气候最佳(MECO)使全球地表温度增加了4摄氏度，这与我们现代气候危机到2100年的预测增幅相同。这个项目的目标是生成一个多方面的模型，将MECO周围的生物变化模式联系起来，从而更多地了解在热范围上与我们自己相似的变暖事件。这将通过将地层学和地球化学数据与生物地层学和生态地貌分析相结合来实现，以评估犹他州Uinta盆地在MECO事件之前、期间和之后栖息地和哺乳动物群落结构的变化。为了实现项目目标，一个由沉积学家、地球化学家、孢粉学家和古生物学家组成的团队将使用他们的综合方法来评估生态系统如何对极端变暖事件做出反应。这种综合方法的成功有望改变我们对哺乳动物物种和栖息地对全球变暖事件的反应的知识。这一奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。