Dissertation Research: The Influence of Competition and Environmental Heterogeneity on the Movement Patterns of a Benthic Invertebrate
论文研究:竞争和环境异质性对底栖无脊椎动物运动模式的影响
基本信息
- 批准号:8701166
- 负责人:
- 金额:$ 0.33万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:1987
- 资助国家:美国
- 起止时间:1987-06-15 至 1988-11-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Although migration occurs in many communities and theoretical studies suggest that it can be an important influence on community dynamics, it is not well understood. Stream communities provide an excellent opportunity to investigate migration. Recent research suggests that movement may be influenced by intraspecific and interspecific competition such that it is density-dependent. However, the prevalence of biotically induced migration in these communities is unknown. A few theoretical studies suggest that density-dependent migration can have important consequences for community dynamics; however, no thorough investigations have been undertaken. It is clear that both empirical and theoretical investigations are needed to understand not only the prevalence of density-dependent migration in streams, but its importance to community structure. A combination of laboratory and field experiments will be used to quantify the effects of environmental heterogeneity and intraspecific competition on the migration of a caddisfly, Hydropsyche slossonae. Laboratory studies will document processes and field studies will verify their importance in natural communities. Existing theoretical models will be modified to incorporate density-dependent migration. Through this modeling effort, the influence of such migration on community structure will be assessed. A computer model to will also be used to generate predictions specific to stream communities. Combining both empirical and theoretical studies will provide a unique opportunity to understand the influence of migration on population dynamics.
尽管移徙发生在许多社区,理论研究表明它可以对社区动态产生重要影响,但人们对此还没有很好的理解。溪流社区为研究迁徙提供了极好的机会。最近的研究表明,移动可能受到种内和种间竞争的影响,因此它是密度依赖的。然而,生物诱导的迁徙在这些社区中的流行率尚不清楚。一些理论研究表明,依赖密度的迁徙可以对群落动态产生重要影响;然而,还没有进行彻底的调查。显然,不仅要了解河流中依赖密度的迁徙的普遍程度,而且要了解其对群落结构的重要性,需要进行经验和理论调查。将采用实验室和野外实验相结合的方法,量化环境异质性和种内竞争对水蚤迁徙的影响。实验室研究将记录这些过程,实地研究将证实它们在自然社区中的重要性。现有的理论模型将被修改,以纳入密度相关的迁移。通过这一建模工作,将评估这种迁移对社区结构的影响。还将使用计算机模型来生成特定于溪流社区的预测。将实证研究和理论研究结合起来,将为了解移徙对人口动态的影响提供一个独特的机会。
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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Peter Chesson其他文献
Resource pulses, species interactions, and diversity maintenance in arid and semi-arid environments
- DOI:
10.1007/s00442-004-1551-1 - 发表时间:
2004-04-07 - 期刊:
- 影响因子:2.300
- 作者:
Peter Chesson;Renate L. E. Gebauer;Susan Schwinning;Nancy Huntly;Kerstin Wiegand;Morgan S. K. Ernest;Anna Sher;Ariel Novoplansky;Jake F. Weltzin - 通讯作者:
Jake F. Weltzin
Variation in moisture duration as a driver of coexistence by the storage effect in desert annual plants
- DOI:
10.1016/j.tpb.2013.10.007 - 发表时间:
2014-03-01 - 期刊:
- 影响因子:
- 作者:
Galen Holt;Peter Chesson - 通讯作者:
Peter Chesson
The asymptotic environmentally determined trajectory (aedt), key to understanding and managing ecological systems under climate change
渐近环境决定轨迹(AEDT)是理解和管理气候变化下生态系统的关键
- DOI:
- 发表时间:
2024 - 期刊:
- 影响因子:5.9
- 作者:
Peter Chesson;YiJie Wu;Galen Holt - 通讯作者:
Galen Holt
The forest architecture hypothesis for diversity maintenance.
用于多样性维护的森林结构假设。
- DOI:
10.1016/0169-5347(94)90197-x - 发表时间:
1994 - 期刊:
- 影响因子:16.8
- 作者:
Peter Chesson;Marissa Pantastico - 通讯作者:
Marissa Pantastico
Scaling up population dynamics: integrating theory and data
- DOI:
10.1007/s00442-005-0058-8 - 发表时间:
2005-04-15 - 期刊:
- 影响因子:2.300
- 作者:
Brett A. Melbourne;Peter Chesson - 通讯作者:
Peter Chesson
Peter Chesson的其他文献
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{{ truncateString('Peter Chesson', 18)}}的其他基金
QEIB: Extended multitrophic diversity maintenance theory
QEIB:扩展多营养多样性维持理论
- 批准号:
1353715 - 财政年份:2014
- 资助金额:
$ 0.33万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: How do species coexist under spatial variation across scales?
论文研究:物种如何在不同尺度的空间变化下共存?
- 批准号:
1310977 - 财政年份:2013
- 资助金额:
$ 0.33万 - 项目类别:
Standard Grant
QEIB: Theory for communities in nonstationary environments
QEIB:非平稳环境中的社区理论
- 批准号:
1119784 - 财政年份:2011
- 资助金额:
$ 0.33万 - 项目类别:
Standard Grant
Community Change in an Arid Ecosystem
干旱生态系统中的群落变化
- 批准号:
0816231 - 财政年份:2008
- 资助金额:
$ 0.33万 - 项目类别:
Continuing Grant
QEIB: Multitrophic Diversity Maintenance Theory
QEIB:多营养多样性维持理论
- 批准号:
0717222 - 财政年份:2007
- 资助金额:
$ 0.33万 - 项目类别:
Continuing Grant
QEIB: Quantifying and Testing Coexistence Mechanisms
QEIB:量化和测试共存机制
- 批准号:
0542991 - 财政年份:2006
- 资助金额:
$ 0.33万 - 项目类别:
Continuing Grant
QEIB: A Theoretical Framework for Density-Dependent Life-History Evolution in Variable Environments
QEIB:可变环境中密度相关生命史演化的理论框架
- 批准号:
0624586 - 财政年份:2005
- 资助金额:
$ 0.33万 - 项目类别:
Standard Grant
QEIB: A Theoretical Framework for Density-Dependent Life-History Evolution in Variable Environments
QEIB:可变环境中密度相关生命史演化的理论框架
- 批准号:
0129833 - 财政年份:2002
- 资助金额:
$ 0.33万 - 项目类别:
Standard Grant
Theory for Community Dynamics in Spatially and Temporally Variable Environments
时空变化环境中的群落动态理论
- 批准号:
9981926 - 财政年份:2000
- 资助金额:
$ 0.33万 - 项目类别:
Standard Grant
Theory for the Dynamics of Coral Reef Fishes with Applications to Hypothesis Testing
珊瑚礁鱼类动力学理论及其在假设检验中的应用
- 批准号:
9911386 - 财政年份:2000
- 资助金额:
$ 0.33万 - 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
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- 项目类别:省市级项目
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- 批准号:30824808
- 批准年份:2008
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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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