Dissertation Research: Regional/historical Influences and Top-down vs. Bottom-up Processes in Arthropod Community Structure
论文研究:节肢动物群落结构的区域/历史影响以及自上而下与自下而上的过程
基本信息
- 批准号:0073055
- 负责人:
- 金额:$ 0.94万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2000
- 资助国家:美国
- 起止时间:2000-08-15 至 2001-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
0073055TaylorEvidence of strong direct effects of predators ("top-down") and resources ("bottom-up") are emerging from mathematical models and simplified assemblages. Data from natural communities are necessary to improve our understanding of their combined effects over multiple scales. Using large-scale surveys combined with manipulative field experiments at a single site, this project examines the trophic interactions of avian predators and arthropod assemblages of the Hawaiian myrtaceous tree Metrosideros polymorpha. Across a four million-year gradient of volcanic substrate age, nutrient availability varies in a unimodal fashion. Arthropod densities on Metrosideros track this relationship across the island chain, suggesting a strong influence of resources to the system. Species diversity accumulates with geological age and is independent of density. These relationships will be evaluated on a young basaltic lava flow (120 y.o.) where Metrosideros plant communities are nutrient limited and respond to fertilization with a tenfold increase in productivity. Vertebrate predators (birds) are to be excluded and large plots will be fertilized in a completely crossed well-replicated design. The proposed research program combines the scales and perspectives of observational data on natural patterns with controlled field experiments, thereby expanding the scope of inference from either approach alone.
捕食者(“自上而下”)和资源(“自下而上”)的强烈直接影响正在从数学模型和简化的组合中显现出来。来自自然社区的数据是必要的,以提高我们对它们在多个尺度上的综合影响的理解。该项目采用大规模调查和现场操控实验相结合的方法,研究了夏威夷桃金娘的鸟类捕食者和节肢动物群落之间的营养相互作用。在火山基质年龄的400万年梯度上,养分的可获得性以单峰方式变化。Metrosideros上的节肢动物密度跟踪了整个岛链的这种关系,表明资源对系统的强大影响。物种多样性随地质年龄的增长而积累,与密度无关。这些关系将在年轻的玄武岩熔岩流上进行评估(120 yo.)在Metrosideros植物群落营养有限的地方,对施肥的反应是生产力提高了10倍。脊椎动物捕食者(鸟类)将被排除在外,大片土地将以完全交叉的、良好重复的设计进行施肥。拟议的研究计划将自然模式的观测数据的规模和视角与受控的野外实验相结合,从而扩大了仅从这两种方法中的任何一种方法进行推断的范围。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Andrew Taylor其他文献
3D digital technologies: Sculpting, modelling & construction of patterns for costume & clothing
3D 数字技术:雕刻、建模
- DOI:
- 发表时间:
2013 - 期刊:
- 影响因子:0
- 作者:
Andrew Taylor;E. Unver;B. Armstrong;Geoff Ward;Alison Agnew;Daniel Hughes;Argyro Argyrou - 通讯作者:
Argyro Argyrou
Bird flight call discrimination using machine learning
使用机器学习辨别鸟类飞行叫声
- DOI:
10.1121/1.412650 - 发表时间:
1995 - 期刊:
- 影响因子:2.4
- 作者:
Andrew Taylor - 通讯作者:
Andrew Taylor
The clinical use of radionuclide bone marrow imaging.
放射性核素骨髓显像的临床应用。
- DOI:
- 发表时间:
1985 - 期刊:
- 影响因子:4.9
- 作者:
F. Datz;Andrew Taylor - 通讯作者:
Andrew Taylor
Hydrogeological assessment of the Bulimba Formation - Mitchell catchment, Queensland. A technical report to the Australian Government from the CSIRO Northern Australia Water Resource Assessment, part of the National Water Infrastructure Development Fund: Water Resource Assessments
昆士兰州米切尔流域布林巴地层的水文地质评估。
- DOI:
10.25919/5b86ed86884f1 - 发表时间:
2018 - 期刊:
- 影响因子:0
- 作者:
Andrew Taylor;R. Doble;R. Crosbie;K. Barry;G. Harrington;P. Davies;Mark G. Thomas - 通讯作者:
Mark G. Thomas
Biomarker validation of cardiac magnetic resonance analysis of regional myocardial fibrosis in ischaemic heart disease
- DOI:
10.1186/1532-429x-18-s1-p77 - 发表时间:
2016-01-27 - 期刊:
- 影响因子:
- 作者:
Benedict T Costello;Leah M Iles;Dion Stub;Andris Ellims;Karen Smith;Stephen Bernard;Ziad Nehme;Janet Bray;Peter Cameron;Ian Meredith;David Kaye;Andrew Taylor - 通讯作者:
Andrew Taylor
Andrew Taylor的其他文献
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{{ truncateString('Andrew Taylor', 18)}}的其他基金
Collaborative Research: Testing a microbial-association-distribution hypothesis to explain spatial distributions and species co-existence in a community of epiphytic plants
合作研究:测试微生物关联分布假说,以解释附生植物群落中的空间分布和物种共存
- 批准号:
1352892 - 财政年份:2014
- 资助金额:
$ 0.94万 - 项目类别:
Standard Grant
Thinking America: Public Intellectuals and the Framing of National Identity, 1837-1909
思考美国:公共知识分子和国家认同的框架,1837-1909
- 批准号:
AH/D500850/1 - 财政年份:2007
- 资助金额:
$ 0.94万 - 项目类别:
Research Grant
Multi-level Governance in South East Europe - Institutional innovation and adaptation, policy transfer and resistance.
东南欧的多层次治理——制度创新和适应、政策转移和阻力。
- 批准号:
ES/E004474/1 - 财政年份:2006
- 资助金额:
$ 0.94万 - 项目类别:
Research Grant
The Population Dynamics of a Nonlethal Parasitoid: Trichopoda pennipes and Nezara viridula
非致命性寄生蜂的种群动态:Trichopoda pennipes 和 Nezara viridula
- 批准号:
9509738 - 财政年份:1995
- 资助金额:
$ 0.94万 - 项目类别:
Standard Grant
Parasitoid-Host Metapopulation Dynamics: Effects of Spatial Heterogeneity and Spatial Structure
拟寄生物-宿主种群动态:空间异质性和空间结构的影响
- 批准号:
9317702 - 财政年份:1994
- 资助金额:
$ 0.94万 - 项目类别:
Standard Grant
相似国自然基金
Research on Quantum Field Theory without a Lagrangian Description
- 批准号:24ZR1403900
- 批准年份:2024
- 资助金额:0.0 万元
- 项目类别:省市级项目
Cell Research
- 批准号:31224802
- 批准年份:2012
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research
- 批准号:31024804
- 批准年份:2010
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research (细胞研究)
- 批准号:30824808
- 批准年份:2008
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Research on the Rapid Growth Mechanism of KDP Crystal
- 批准号:10774081
- 批准年份:2007
- 资助金额:45.0 万元
- 项目类别:面上项目
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