Collaborative Research: Testing a Mechanism for the Productivity-Beta Diversity Relationship in Plants

合作研究:测试植物生产力-β多样性关系的机制

基本信息

  • 批准号:
    0947368
  • 负责人:
  • 金额:
    $ 33.98万
  • 依托单位:
  • 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 2014-08-31
  • 项目状态:
    已结题

项目摘要

Intellectual merit: Globally, the diversity of plants and animals is highest in regions where rainfall and solar energy are abundant, which yields high rates of carbon capture via photosynthesis termed primary productivity. This project will analyze a previously unexamined aspect of this pattern, namely, how productivity affects the degree to which plants are specialized on different soils, which can drive the variation in species composition among different locations. In productive climates, this project will test the hypothesis that plant communities on different soils will be highly distinct because intensified competition leads to narrower soil niches, whereas in colder or more arid climates less distinctiveness of plant communities across soil boundaries is predicted. These predictions will be tested by comparing plant communities on chemically unusual soils such as serpentine, limestone, and dolomite, to those on nearby normal soils, across gradients of high to low rainfall in California and the Ozarks. To better understand the mechanisms for the observed patterns, experimental manipulations of rainfall and plant competition in neighboring serpentine and non-serpentine plant communities in California will be conducted. This research is important because plant species and communities endemic to particular soils are important contributors to global botanical diversity. Our results will help understand how climate controls plant diversity, plant community composition, and the degree to which plant communities are affected by biological invasions. Broader impacts: A graduate student from an underrepresented group and several undergraduates will be trained with this award. Data will be made available to researchers, agency scientists, and nonprofit environmental groups through the data archives of the Knowledge Network for Biocomplexity (knb.ecoinformatics.org) and the UC Natural Reserve System Data Registry.
智力优势:在全球范围内,植物和动物的多样性在降雨和太阳能丰富的地区最高,这些地区通过光合作用产生较高的碳捕获率,称为初级生产力。该项目将分析这一模式的一个以前未被研究的方面,即生产力如何影响植物在不同土壤上的专业化程度,这可以驱动不同地点物种组成的变化。在高产气候条件下,该项目将检验这样一种假设,即不同土壤上的植物群落将高度不同,因为激烈的竞争导致土壤生态位更窄,而在更冷或更干旱的气候条件下,预计植物群落在土壤边界上的差异性较小。这些预测将通过比较化学性质不寻常的土壤(如蛇纹石、石灰石和白云石)上的植物群落,与附近正常土壤上的植物群落,跨越加州和奥扎克地区降雨量高低的梯度,来进行检验。为了更好地理解观察到的模式的机制,将在加利福尼亚州邻近的蛇形和非蛇形植物群落中进行降雨和植物竞争的实验操作。这项研究很重要,因为特定土壤特有的植物物种和群落是全球植物多样性的重要贡献者。我们的研究结果将有助于了解气候如何控制植物多样性、植物群落组成以及植物群落受生物入侵的影响程度。更广泛的影响:来自代表性不足群体的一名研究生和几名本科生将接受该奖项的培训。数据将通过生物复杂性知识网络(knb.ecoinformatics.org)和加州大学自然保护区系统数据登记处的数据档案提供给研究人员、机构科学家和非营利环境组织。

项目成果

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Susan Harrison其他文献

High resistance to managed and natural forest fire in a rare rock-outcrop specialist herb (<em>Boechera constancei</em>, Brassicaceae)
  • DOI:
    10.1016/j.foreco.2016.10.058
  • 发表时间:
    2017-01-15
  • 期刊:
  • 影响因子:
  • 作者:
    Erica J. Case;Susan Harrison
  • 通讯作者:
    Susan Harrison
Density-dependent foraging behaviors in a parasitoid lead to density-dependent parasitism of its host
  • DOI:
    10.1007/s00442-003-1313-5
  • 发表时间:
    2003-07-16
  • 期刊:
  • 影响因子:
    2.300
  • 作者:
    James Umbanhowar;John Maron;Susan Harrison
  • 通讯作者:
    Susan Harrison
SERPENTINE ENDEMISM IN THE CALIFORNIA FLORA: A DATABASE OF SERPENTINE AFFINITY
加州植物区系中的蛇纹石特有现象:蛇纹石亲和力数据库
  • DOI:
  • 发表时间:
    2005
  • 期刊:
  • 影响因子:
    0
  • 作者:
    H. Safford;H. Safford;J. Viers;Susan Harrison
  • 通讯作者:
    Susan Harrison
High β diversity in the flora of Californian serpentine 'islands'
  • DOI:
    10.1023/a:1020357904064
  • 发表时间:
    2002-10-01
  • 期刊:
  • 影响因子:
    3.100
  • 作者:
    Susan Harrison;Brian D. Inouye
  • 通讯作者:
    Brian D. Inouye
A graded, evidence-based summary of evidence for bariatric surgery.
减肥手术证据的分级、基于证据的总结。
  • DOI:
  • 发表时间:
    2005
  • 期刊:
  • 影响因子:
    3.1
  • 作者:
    R. Brechner;Clay Farris;Susan Harrison;K. Tillman;M. Salive;S. Phurrough
  • 通讯作者:
    S. Phurrough

Susan Harrison的其他文献

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{{ truncateString('Susan Harrison', 18)}}的其他基金

OPUS: The Role of the Environment in Shaping Plant Diversity from Global to Local Scales
OPUS:环境在塑造从全球到地方尺度的植物多样性中的作用
  • 批准号:
    1748610
  • 财政年份:
    2018
  • 资助金额:
    $ 33.98万
  • 项目类别:
    Standard Grant
RAPID: Using the historic Californian drought to gain a predictive understanding of the effects of severe climatic events on plant communities
RAPID:利用历史性的加州干旱来预测严重气候事件对植物群落的影响
  • 批准号:
    1439246
  • 财政年份:
    2014
  • 资助金额:
    $ 33.98万
  • 项目类别:
    Standard Grant
Climate and Competition as Controls on the Persistence and Richness of an Edaphicendemic Flora
气候和竞争对土壤流行植物群的持久性和丰富度的控制
  • 批准号:
    0542451
  • 财政年份:
    2006
  • 资助金额:
    $ 33.98万
  • 项目类别:
    Standard Grant
LTREB: Adding the Temporal Component to our Understanding of Species Diversity in a Spatially Heterogeneous and Invaded Grassland System
LTREB:将时间成分添加到我们对空间异质和入侵草原系统中物种多样性的理解中
  • 批准号:
    0515914
  • 财政年份:
    2005
  • 资助金额:
    $ 33.98万
  • 项目类别:
    Continuing Grant
Dissertation Research: When Does Propagule Limitation Matter? Interactions Between Propogule Supply and Other Constraints on the Distribution of a Native Annual Forb
论文研究:繁殖限制何时重要?
  • 批准号:
    0508658
  • 财政年份:
    2005
  • 资助金额:
    $ 33.98万
  • 项目类别:
    Standard Grant
Regional and Local Diversity in a Patchy Environment: Serpentine Plants in California
斑驳环境中的区域和地方多样性:加利福尼亚州的蛇纹石植物
  • 批准号:
    0075369
  • 财政年份:
    2000
  • 资助金额:
    $ 33.98万
  • 项目类别:
    Standard Grant
SGER: Effects of Wildfire on Aquatic and Terrestrial Ecology in an Oak Woodland - Chaparral Ecosystem
SGER:野火对橡树林地 - 丛林生态系统水生和陆地生态的影响
  • 批准号:
    0072804
  • 财政年份:
    2000
  • 资助金额:
    $ 33.98万
  • 项目类别:
    Standard Grant
CRB: Understanding the Regional Distribution of Native Meadow Remnants in Northern California
CRB:了解北加州原生草甸遗迹的区域分布
  • 批准号:
    9903421
  • 财政年份:
    1999
  • 资助金额:
    $ 33.98万
  • 项目类别:
    Standard Grant
U.S.-Brazil Dissertation Enhancement: Effect of Habitat Fragmentation on the Reproduction and Population Dynamics of a Neotropical Herb (Heliconia Acuminata)
美国-巴西论文增强:栖息地破碎化对新热带草本植物(Heliconia Acuminata)繁殖和种群动态的影响
  • 批准号:
    9806351
  • 财政年份:
    1998
  • 资助金额:
    $ 33.98万
  • 项目类别:
    Standard Grant
Spatial dynamics of an Outbreaking Insect Population
爆发昆虫种群的空间动态
  • 批准号:
    9628937
  • 财政年份:
    1996
  • 资助金额:
    $ 33.98万
  • 项目类别:
    Standard Grant

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