Natural Enemy Diversity and Biological Control
天敌多样性与生物防治
基本信息
- 批准号:0108300
- 负责人:
- 金额:$ 32.34万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2001
- 资助国家:美国
- 起止时间:2001-09-15 至 2005-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Exotic pests are spread throughout the world either inadvertently or intentionally by humans. This proposal evaluates two inter-related questions: (1) does the ability of these pests to invade depend on the biodiversity of the new ecosystems they encounter, and (2) are biologically impoverished ecosystems more susceptible to invasion? The proposed research will address these questions in agricultural systems that have been subjected to numerous types of exotic pest. A dramatically successful pest, the soybean aphid, Aphis glycines, was first identified in North America in 2000. In the Upper Midwest, this invader reached outbreak levels, becoming the only serious insect pest in the otherwise insect-poor community found in soybean fields. In contrast, in alfalfa crops the pea aphid, Acyrthosiphon pisum, is a potential pest, but it never reaches outbreak levels. Unlike the low biodiversity of soybean fields, alfalfa has a high diversity of invertebrates, both herbivores and predators. My research will test whether the low diversity of the soybean community relative to the alfalfa community facilitates the invasion and outbreak of the soybean aphid, whereas predators continuously control pea aphids. Experiments will be performed to switch the invertebrate communities between soybean and alfalfa crops, thereby forcing soybean aphids to face the community of species found in alfalfa, and conversely making pea aphids face the species-poor community from soybeans. If low biodiversity of soybean crops is essential for the successful invasion of the soybean aphid, then when placed in the highly diverse community of alfalfa crops, the soybean aphid should be suppressed.
人类无意或有意地将外来害虫传播到世界各地。 该提案评估了两个相互关联的问题:(1)这些害虫入侵的能力是否取决于它们遇到的新生态系统的生物多样性,以及(2)生物贫乏的生态系统是否更容易受到入侵? 拟议的研究将解决这些问题,在农业系统已受到许多类型的外来害虫。 大豆蚜虫是一种非常成功的害虫,2000年首次在北美发现。 在上中西部,这种入侵者达到爆发水平,成为大豆田中发现的昆虫贫乏社区中唯一严重的害虫。相比之下,在苜蓿作物中,豌豆蚜(Acyrthosiphon pisum)是一种潜在的害虫,但从未达到爆发水平。 与大豆田的低生物多样性不同,苜蓿具有高多样性的无脊椎动物,包括食草动物和捕食者。 我的研究将测试大豆群落相对于苜蓿群落的低多样性是否有利于大豆蚜虫的入侵和爆发,而捕食者持续控制豌豆蚜虫。 将进行实验,在大豆和苜蓿作物之间切换无脊椎动物群落,从而迫使大豆蚜虫面对苜蓿中发现的物种群落,反之,使豌豆蚜虫面对大豆中的物种贫乏群落。 如果大豆作物的低生物多样性是大豆蚜虫成功入侵的必要条件,那么当置于高度多样性的苜蓿作物群落中时,大豆蚜虫应该受到抑制。
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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Anthony Ives其他文献
Anthony Ives的其他文献
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{{ truncateString('Anthony Ives', 18)}}的其他基金
LTREB: Interactions Between Population and Ecosystem Dynamics, and the High-Amplitude Fluctuations of Midge Abundances in Lake Myvatn, Iceland
LTREB:人口与生态系统动态之间的相互作用以及冰岛米湖中蚊子丰度的大幅波动
- 批准号:
2134446 - 财政年份:2022
- 资助金额:
$ 32.34万 - 项目类别:
Continuing Grant
LTREB Renewal: High-amplitude midge fluctuations and the ecosystem dynamics of Lake Myvatn, Iceland
LTREB 更新:冰岛米湖的高振幅蠓波动和生态系统动态
- 批准号:
1556208 - 财政年份:2016
- 资助金额:
$ 32.34万 - 项目类别:
Continuing Grant
Dimensions: Collaborative Research: The role of taxonomic, functional, genetic, and landscape diversity in food web responses to a changing environment
维度:合作研究:分类、功能、遗传和景观多样性在食物网对环境变化的反应中的作用
- 批准号:
1240804 - 财政年份:2013
- 资助金额:
$ 32.34万 - 项目类别:
Continuing Grant
High-amplitude midge fluctuations and the ecosystem dynamics of Lake Myvatn, Iceland
冰岛米湖的高振幅蠓波动与生态系统动态
- 批准号:
1052160 - 财政年份:2011
- 资助金额:
$ 32.34万 - 项目类别:
Continuing Grant
Measures and Models of Phylogenetic Structure in Community Composition and Dynamics
群落组成和动态中系统发育结构的测量和模型
- 批准号:
0816613 - 财政年份:2008
- 资助金额:
$ 32.34万 - 项目类别:
Standard Grant
UBM-Undergraduate collaborative group in mathematical biology
UBM-数学生物学本科合作组
- 批准号:
0337500 - 财政年份:2004
- 资助金额:
$ 32.34万 - 项目类别:
Standard Grant
MSPA-CSE: Analysis and Detection of Transient Dynamics in Ecological Systems
MSPA-CSE:生态系统瞬态动态的分析和检测
- 批准号:
0434329 - 财政年份:2004
- 资助金额:
$ 32.34万 - 项目类别:
Standard Grant
QEIB - Nonlinearities in Stochastic Population Dynamics
QEIB - 随机总体动力学中的非线性
- 批准号:
0415670 - 财政年份:2004
- 资助金额:
$ 32.34万 - 项目类别:
Standard Grant
Community Structure and Stability: Linking Theory and Data
社区结构和稳定性:理论和数据的联系
- 批准号:
9806953 - 财政年份:1998
- 资助金额:
$ 32.34万 - 项目类别:
Standard Grant
Dissertation Research: Parasite Load Reduction Experiments in Sceloporus
论文研究:侧孔虫寄生虫负荷减少实验
- 批准号:
9412159 - 财政年份:1995
- 资助金额:
$ 32.34万 - 项目类别:
Standard Grant
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