Using Paleospecies-Area Curves to Predict Biodiversity Changes in Mammals: Linkage of Macroecology and Paleontology

使用古物种面积曲线预测哺乳动物的生物多样性变化:宏观生态学和古生物学的联系

基本信息

  • 批准号:
    0543641
  • 负责人:
  • 金额:
    --
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2006
  • 资助国家:
    美国
  • 起止时间:
    2006-04-15 至 2010-03-31
  • 项目状态:
    已结题

项目摘要

Using Paleospecies-Area Curves to Predict Biodiversity Changes in Mammals: Linkage of Macroecology and PaleontologyThe ecosystems of the Earth are under siege from a variety of human impacts. Because as impacts accumulate, ecosystems can suddenly cross thresholds that may significantly change them, it is imperative to develop ways to recognize when such thresholds are approached. One early warning sign of approaching thresholds is changes in the number of species -- that is, species richness -- that are interacting in the ecosystem. Therefore, this research focuses on establishing the natural baseline for species richness in the American West, so that it becomes possible to use observed deviations from the baseline to recognize when ecosystems are in peril. To establish the natural baseline, it is necessary to take into account how species richness patterns vary over times much longer than human life spans. This project uses the exceptionally good fossil record of mammals to do this. Information on fossil and modern mammal occurrences will be aggregated into databases that will be made available to the public, and which allow sorting of the mammal species into the geographic area and the time interval in which they lived. The species richness per geographic area per interval will then be statistically analyzed and compared. In this way, modern species richness values can be interpreted in the context of this empirically determined, long-term baseline, with values falling outside the natural range of variability being cause for concern. The work also will train postdoctoral and graduate students in global change issues.
利用古物种面积曲线预测哺乳动物生物多样性变化:宏观生态学和古生物学的联系地球生态系统正受到各种人类影响的围攻。由于随着影响的积累,生态系统可能突然跨越可能使其发生重大变化的阈值,因此必须制定方法,以识别何时接近这些阈值。 接近临界值的一个早期预警信号是生态系统中相互作用的物种数量-即物种丰富度-的变化。因此,本研究的重点是建立美国西部物种丰富度的自然基线,以便可以使用观察到的基线偏差来识别生态系统何时处于危险之中。 为了建立自然基线,有必要考虑到物种丰富度模式如何随着时间的推移而变化,时间远远超过人类的寿命。 这个项目使用了非常好的哺乳动物化石记录来做到这一点。 有关化石和现代哺乳动物出现的信息将被汇总到数据库中,这些数据库将向公众提供,并允许将哺乳动物物种按地理区域和它们生活的时间间隔进行分类。 然后将对每个地理区域每个间隔的物种丰富度进行统计分析和比较。这样,现代物种丰富度值就可以在这一凭经验确定的长期基线的背景下加以解释,而超出自然变异范围的值则令人关切。 这项工作还将培训全球变化问题方面的博士后和研究生。

项目成果

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Anthony Barnosky其他文献

Anthony Barnosky的其他文献

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{{ truncateString('Anthony Barnosky', 18)}}的其他基金

RCN-UBE Incubator: Building the San Francisco Bay Network for Student Opportunities in Avian Research to enhance STEM education and assess urban impacts on avian ecology
RCN-UBE 孵化器:建立旧金山湾鸟类研究学生机会网络,以加强 STEM 教育并评估城市对鸟类生态的影响
  • 批准号:
    2017935
  • 财政年份:
    2020
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
South American Megafauna Extinction: A Test of Synergistic Effects of Climate Change and Human Population Growth in Magnifying Extinction Intensity
南美巨型动物灭绝:气候变化和人口增长对灭绝强度的协同效应检验
  • 批准号:
    1148181
  • 财政年份:
    2012
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Dissertation Research: Regional trophic diversity dynamics in North American Eocene mammals
论文研究:北美始新世哺乳动物的区域营养多样性动态
  • 批准号:
    1011474
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Collaborative Research: Response of Mammalian Survivors to the Late Pleistocene Extinction Event
合作研究:哺乳动物幸存者对更新世晚期灭绝事件的反应
  • 批准号:
    0720387
  • 财政年份:
    2007
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
DISSERTATION RESEARCH: Why Do Clades Lose Diversity? Aplodontoid Rodents as a Case Study in the Decline of Higher Taxa
论文研究:为什么进化枝会失去多样性?
  • 批准号:
    0407873
  • 财政年份:
    2004
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
DISSERTATION RESEARCH: Key Adaptations: Morphological Specializations Creating Ecological Specialization or Ecological Generalization?
论文研究:关键适应:形态专业化创造生态专业化还是生态普遍化?
  • 批准号:
    0308770
  • 财政年份:
    2003
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Completion of GIS Analyses to Assess Biotic Effects of Environmental Perturbations on Neogene Mammals
完成 GIS 分析以评估环境扰动对新近纪哺乳动物的生物影响
  • 批准号:
    0310221
  • 财政年份:
    2003
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
A GIS Analysis to Assess the Effect of Large-Scale Perturbations in the Physical Environment on the Evolution of Neogene Mammal Faunas in the Western United States
GIS 分析评估物理环境大规模扰动对美国西部新近纪哺乳动物区系进化的影响
  • 批准号:
    9909353
  • 财政年份:
    2000
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
COLLABORATIVE RESEARCH: Middle Miocene Biogeography and Biostratigraphy in the Northern Rocky Mountains of Idaho, Montana, and Wyoming
合作研究:爱达荷州、蒙大拿州和怀俄明州落基山脉北部的中中新世生物地理学和生物地层学
  • 批准号:
    9118565
  • 财政年份:
    1992
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Middle Pleistocene Glacial-Interglacial Transitions and Their Effect on Mammalian Community Reorganization in Colorado
中更新世冰川-间冰期转变及其对科罗拉多州哺乳动物群落重组的影响
  • 批准号:
    8916940
  • 财政年份:
    1990
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
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