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The Impact of Late Quaternary Climate Change on Mammals Along an Elevational Gradient

The Impact of Late Quaternary Climate Change on Mammals Along an Elevational Gradient
晚第四纪气候变化对沿海拔梯度的哺乳动物的影响
批准号:
0344620
负责人:
Felisa Smith
金额:
$28.5万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2004
资助国家:
美国
项目状态:
已结题
起止时间:
2004-04-01 至 2008-03-31

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中文摘要
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英文摘要
This study investigates the response of Neotoma (woodrats) to climatic change over the last 15,000 years along a severe elevational and environmental gradient. During the Pleistocene, lake Manly covered much of Death Valley; its abrupt draining in the mid-Holocene led to dramatic shifts in temperature and aridity. Today this area is the hottest and driest in the Western Hemisphere. By combining fieldwork, examination of museum specimens, and collection of paleofossils, this project will reconstruct the divergent evolutionary histories of animals from the Valley floor and along a nearby mountain gradient (-84 to 3400m). The investigators predict fundamental differences in the adaptive abilities of woodrat species related to elevation of the site and local microclimate. Predicted responses include: i) local extirpation when temperature thresholds are exceeded, ii) generation of novel adaptations, such as new life histories, and iii) morphological alterations, such as phenotypic changes in body size. The broader impacts of the work include the ability to characterize the relationship between the magnitude and rapidity of temperature shifts, the position in the geographic range, and the type of elucidated response. Such information about the responses of organisms to past climate change is invaluable for scientists studying anthropogenic warming. Moreover, the project will generate a high quality spatial and temporally resolved climate proxy that can be integrated with other paleodata. The characterization and interpretation of late Quaternary climates is a major research effort of governmental and geoscience agencies.
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Collaborative Research: Moving beyond causation: the ecological consequences of the terminal Pleistocene extinction of North American megafauna
  • 批准号:
    1555525
  • 项目类别:
    Standard Grant
  • 资助金额:
    $60.0万
  • 财政年份:
    2016
  • 负责人:
    Felisa Smith
  • 依托单位:
RCN: Integrating Macroecological Pattern and Processes Across Scales (IMPPS)
  • 批准号:
    0541625
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $49.0万
  • 财政年份:
    2006
  • 负责人:
    Felisa Smith
  • 依托单位:
The Influence of Late Quaternary Climate Change on the Ecology and Evolutionary Dynamics of Small Mammalian Herbivores
  • 批准号:
    0212370
  • 项目类别:
    Standard Grant
  • 资助金额:
    $7.0万
  • 财政年份:
    2002
  • 负责人:
    Felisa Smith
  • 依托单位:
RPG: Microevolutionary Response of Woodrats (Neotoma) to Climate Change since the Last Glacial Maximum
  • 批准号:
    9508715
  • 项目类别:
    Standard Grant
  • 资助金额:
    $1.8万
  • 财政年份:
    1995
  • 负责人:
    Felisa Smith
  • 依托单位:
国内基金
海外基金
胚胎脑发育的分子机理:lgl2(late gestation lung 2)蛋白质的生物学功能的研究
  • 批准号:
    30470854
  • 项目类别:
    面上项目
  • 资助金额:
    18.0万元
  • 批准年份:
    2004
  • 负责人:
    陶涛
  • 依托单位: