Collaborative Research: Assembling the foundation of modern mammal community structure in the first 7 million years after the K/Pg mass extinction

合作研究:为 K/Pg 大规模灭绝后的前 700 万年建立现代哺乳动物群落结构的基础

基本信息

  • 批准号:
    2321341
  • 负责人:
  • 金额:
    $ 23.33万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2023
  • 资助国家:
    美国
  • 起止时间:
    2023-08-01 至 2026-07-31
  • 项目状态:
    未结题

项目摘要

Mammals are ecologically dominant in ecosystems today. Their rise to prominence after the mass extinction (K/Pg) that killed off the dinosaurs 66 million years ago is a classic example of evolutionary radiation. Study of such events not only impacts evolutionary theory but also our understanding of loss and origination of biodiversity and the fragility, collapse, assembly, and maintenance of today’s ecosystems. Detailed understanding of the ecological and evolutionary dynamics of this event are lacking. A diverse team of geologists and paleontologists will build a study system in eastern Montana that spans the first 7 million years after the K/Pg mass extinction to address two central questions: 1) How did mammals rise to ecological prominence in local ecosystems in deep time?, and 2) How did factors, like climate and vegetation, shape this trajectory? The team will generate and integrate critical records of fossil mammals and climate proxies in a highly resolved temporal framework across eastern Montana. This will provide a detailed Earth system view of the continental ecosystem across the K/Pg and through most of the Paleocene (the first ~7 million years) that will elucidate long-term connections between mammalian evolution, ecology, and climate. Analyses will also clarify how perturbations to these systems lead to large-scale ecosystem change and moderate biotic recovery and radiation. This work will have implications for geochronology, paleoclimatology, paleontology, ecology, and evolution. The team will engage a wider and more diverse audience through (1) the multi-year outreach initiative the Discoveries in Geosciences (DIG) Field School, which connects K-12 teachers and their classrooms with real Earth science research via fieldwork and classroom activities; (2) broadening the participation of underrepresented groups in research by supporting a PI and a graduate student who are early-career female scientists and a PI from an underrepresented group, in addition to providing full scholarships for 8 teachers from underrepresented groups to attend DIG; and (3) building STEM talent through the education and training of 4 graduate students and at least 6 undergraduate students who will be introduced to the Earth sciences through field and lab work.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.
哺乳动物在今天的生态系统中占主导地位。在6600万年前恐龙灭绝的大灭绝(K/Pg)之后,它们的崛起是进化辐射的一个经典例子。对这些事件的研究不仅影响了进化理论,而且影响了我们对生物多样性的丧失和起源以及当今生态系统的脆弱性、崩溃、组装和维护的理解。对这一事件的生态和进化动力学还缺乏详细的了解。一个由地质学家和古生物学家组成的多元化团队将在蒙大拿州东部建立一个跨越K/Pg大灭绝后的前700万年的研究系统,以解决两个核心问题:1)哺乳动物是如何在远古时期在当地生态系统中崛起的?2)气候和植被等因素是如何塑造这一轨迹的?该团队将在蒙大拿州东部高度确定的时间框架内生成并整合哺乳动物化石和气候代用物的关键记录。这将为横跨K/Pg和大部分古新世(第一~ 700万年)的大陆生态系统提供详细的地球系统视图,这将阐明哺乳动物进化、生态和气候之间的长期联系。分析还将阐明对这些系统的扰动如何导致大规模的生态系统变化和适度的生物恢复和辐射。这项工作将对地质年代学、古气候学、古生物学、生态学和进化论产生影响。该团队将通过以下方式吸引更广泛、更多样化的受众:(1)多年的外展计划——地球科学发现(DIG)实地学校,通过实地考察和课堂活动将K-12教师及其课堂与真正的地球科学研究联系起来;(2)通过支持一名PI和一名早期职业女性科学家研究生以及一名来自未被充分代表群体的PI,扩大未被充分代表群体对研究的参与,并为来自未被充分代表群体的8名教师提供全额奖学金;(3)通过教育和培训4名研究生和至少6名本科生,培养通过实地和实验室工作接触地球科学的STEM人才。该奖项反映了美国国家科学基金会的法定使命,并通过使用基金会的知识价值和更广泛的影响审查标准进行评估,被认为值得支持。

项目成果

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Gregory Wilson Mantilla其他文献

Gregory Wilson Mantilla的其他文献

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{{ truncateString('Gregory Wilson Mantilla', 18)}}的其他基金

Collaborative Research: India at the Crossroads--Biotic Change in Continental Vertebrates Across the Cretaceous-Paleogene
合作研究:处于十字路口的印度——白垩纪-古近纪大陆脊椎动物的生物变化
  • 批准号:
    1736787
  • 财政年份:
    2017
  • 资助金额:
    $ 23.33万
  • 项目类别:
    Standard Grant
CNIC COLLABORATIVE RESEARCH: US-Ethiopia planning visit for the investigation of non-marine Mesozoic ecosystems from the Northwestern Plateau, Ethiopia
CNIC合作研究:美国-埃塞俄比亚计划访问埃塞俄比亚西北高原非海洋中生代生态系统
  • 批准号:
    1443845
  • 财政年份:
    2015
  • 资助金额:
    $ 23.33万
  • 项目类别:
    Standard Grant
COLLABORATIVE RESEARCH: Taphonomy, paleoecology, and evolution of mammals and squamates from Egg Mountain: An exceptional view of a Late Cretaceous ecosystem
合作研究:埋藏学、古生态学以及蛋山哺乳动物和有鳞动物的进化:白垩纪晚期生态系统的独特视角
  • 批准号:
    1325674
  • 财政年份:
    2013
  • 资助金额:
    $ 23.33万
  • 项目类别:
    Continuing Grant

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合作研究:为 K/Pg 大规模灭绝后的前 700 万年建立现代哺乳动物群落结构的基础
  • 批准号:
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    2023
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  • 批准号:
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合作研究:为 K/Pg 大规模灭绝后的前 700 万年建立现代哺乳动物群落结构的基础
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合作研究:为 K/Pg 大规模灭绝后的前 700 万年建立现代哺乳动物群落结构的基础
  • 批准号:
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