REU: Collaborative Research: Ecology of Migratory PasserineBirds on Breeding and Wintering Areas - Demographic and Experimental Studies
REU:合作研究:迁徙雀形目鸟类在繁殖和越冬地区的生态学 - 人口统计和实验研究
基本信息
- 批准号:8907298
- 负责人:
- 金额:$ 18.34万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:1989
- 资助国家:美国
- 起止时间:1989-07-01 至 1992-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This study is a continuation and expansion of long-term studies of population dynamics and habitat selection by two migratory passerine bird species on their breeding grounds, in forested parts of central New Hampshire and on wintering sites in Jamaica. It combines experimental, observational, and demographic approaches to test the hypothesis that populations of these species are limited both in summer and winter. Three steps will be used in both areas: (1) a test whether habitat selection is density dependent and/or despotic (i.e., younger individuals or females are constrained by socially dominant older males), as reflected in distribution patterns along habitat gradients, and by testing for dominance behavior directly; (2) a test for consequences of dominance behavior on age- and sex-specific reproduction and/or survival by habitat, and (3) a determination of the importance of temporally and spatially variable food supplies (especially a defoliating caterpillar in breeding areas) and predators as possible ecological causes of demographic patterns observed. Finally, the relative importance of temporally variable ecological conditions on age-structure and abundances of these populations will be assessed. Such information is urgently needed by conservationists, due to rapid habitat loss for these migratory species on both breeding and wintering areas.
这项研究是对两种候鸟种群动态和栖息地选择长期研究的延续和扩展,这些研究是在它们的繁殖地、新罕布什尔州中部的森林地区和牙买加的越冬地进行的。它结合了实验、观察和人口统计学的方法来验证这些物种的种群在夏季和冬季都是有限的假设。这两个领域将采用三个步骤:(1)测试生境选择是否依赖于密度和/或专制(即年轻个体或雌性受到社会优势年长雄性的约束),这反映在生境梯度的分布模式中,并直接测试优势行为;(2)通过栖息地测试优势行为对年龄和性别特异性繁殖和/或生存的影响;(3)确定时间和空间可变的食物供应(特别是繁殖区的落叶毛虫)和捕食者作为观察到的人口模式可能的生态原因的重要性。最后,将评估时变生态条件对这些种群的年龄结构和丰度的相对重要性。由于这些迁徙物种在繁殖区和越冬区栖息地的迅速丧失,保护主义者迫切需要这些信息。
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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Thomas Sherry其他文献
Thomas Sherry的其他文献
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{{ truncateString('Thomas Sherry', 18)}}的其他基金
OPUS: The Biotic Challenge Hypothesis, an Eco-evolutionary Mechanism for Tropical Diversity
OPUS:生物挑战假说,热带多样性的生态进化机制
- 批准号:
2147043 - 财政年份:2022
- 资助金额:
$ 18.34万 - 项目类别:
Standard Grant
Conference Proposal: Support Student and Early Professional Attendance to the 2020 North American Ornithological Conference, San Juan, Puerto Rico
会议提案:支持学生和早期专业人士参加 2020 年北美鸟类学会议,波多黎各圣胡安
- 批准号:
2001973 - 财政年份:2020
- 资助金额:
$ 18.34万 - 项目类别:
Standard Grant
LTREB Renewal: Collaborative Research: Density-Dependent and Density-Independent Effects on the Non-Breeding Season Dynamics of a Migratory Bird
LTREB 更新:合作研究:密度相关和密度无关对候鸟非繁殖季节动态的影响
- 批准号:
1242588 - 财政年份:2012
- 资助金额:
$ 18.34万 - 项目类别:
Continuing Grant
DISSERTATION RESEARCH: Do mesoherbivores drive Neotropical rainforest understory insectivorous bird declines by limiting availability of preferred foraging microhabitat?
论文研究:中食草动物是否通过限制首选觅食微生境的可用性而导致新热带雨林林下食虫鸟类的减少?
- 批准号:
1010952 - 财政年份:2010
- 资助金额:
$ 18.34万 - 项目类别:
Standard Grant
LTREB Collaborative Research: Density-dependent and Density-independent Effects on the Non-Breeding Season Dynamics of a Migratory Bird
LTREB 合作研究:密度依赖和密度无关对候鸟非繁殖季节动态的影响
- 批准号:
0717243 - 财政年份:2007
- 资助金额:
$ 18.34万 - 项目类别:
Continuing Grant
Dissertation Research: Modeling Winter Food Limitation in a Migratory Bird
论文研究:模拟候鸟冬季食物限制
- 批准号:
0408117 - 财政年份:2004
- 资助金额:
$ 18.34万 - 项目类别:
Standard Grant
Collaborative Research: Population Limitation of Neotropical Migrant Birds and the Seasonal-Interaction Hypothesis
合作研究:新热带候鸟的种群限制和季节相互作用假说
- 批准号:
0089541 - 财政年份:2001
- 资助金额:
$ 18.34万 - 项目类别:
Continuing Grant
Collaborative Research: Population Responses of Neotropical-Nearctic Migrant Birds to Human Impacted Habitats in the Winter Grounds
合作研究:新热带-近北极候鸟种群对冬季人类影响栖息地的反应
- 批准号:
9622316 - 财政年份:1996
- 资助金额:
$ 18.34万 - 项目类别:
Standard Grant
Collaborative Research: Ecology of Migratory Passerine Birds in Breeding and Wintering Areas: Demographic and Experimental Studies
合作研究:繁殖和越冬地区候鸟的生态学:人口统计和实验研究
- 批准号:
9213828 - 财政年份:1992
- 资助金额:
$ 18.34万 - 项目类别:
Standard Grant
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