Mast-Seeding in Perennial Plants: A Test of the Pollen Coupling Hypothesis
多年生植物的肥大播种:花粉耦合假说的检验
基本信息
- 批准号:0515756
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2005
- 资助国家:美国
- 起止时间:2005-10-01 至 2011-09-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Seed output fluctuates dramatically over time in many plant populations. These fluctuations, often called mast seeding, directly affect numerous plant and animal species. Nonetheless, empirical tests of the proximate causes of mast seeding are virtually nonexistent. Crone and Sala will test proximate mechanisms of mast seeding in two plant species: Astragalus scaphoides (bitterroot milkvetch), a bee-pollinated wildflower, and Pinus albicaulis (whitebark pine), a wind-pollinated tree. For each species, Crone and Sala will test whether pollen availability limits seed production, and the effect of seed production on stored resources. These experiments test the assumptions of "pollen coupling" a recently proposed, but untested, hypothesis for how mast-seeding occurs. Crone and Sala will also evaluate predictions of pollen coupling models, using wide-scale geographic patterns of synchrony in whitebark pine and whole-plant manipulations of fruit set and pollen availability in bitterroot milkvetch. Fluctuations in the fruit or seed output of mast-seeding plants are a key factor regulating economically important wildlife and pest species. Whitebark pine exemplifies the importance of understanding mast seeding for management. In Yellowstone National Park, whitebark cone crop failures cause human-grizzly conflicts; managers need to predict non-mast years in order to deal with these conflicts and associated public relations. In Glacier National Park, whitebark pine has been decimated by an introduced pathogen, white pine blister rust. Predicting mast years will help managers locate and collect seeds of resistant trees, and design restoration strategies that maintain key elements of mast-seeding. In addition to direct application of research results, this project will provide educational opportunities for undergraduate and graduate students, and integrate with ongoing programs that provide research opportunities for inner-city and Native American undergraduate students.
在许多植物种群中,种子产量随着时间的推移而剧烈波动。 这些波动,通常被称为桅杆播种,直接影响许多植物和动物物种。 尽管如此,对桅杆播种的直接原因的经验测试实际上是不存在的。 Crone和Sala将在两种植物中测试桅杆播种的近似机制:黄芪(黄芪),一种蜜蜂授粉的野花,和白皮松(白皮松),一种风授粉的树。 对于每一个物种,Crone和Sala将测试花粉的可用性是否限制种子生产,以及种子生产对储存资源的影响。 这些实验测试了“花粉耦合”的假设,这是一个最近提出的,但未经检验的关于桅杆播种如何发生的假设。 Crone和Sala还将评估花粉耦合模型的预测,使用白皮松的大规模地理同步模式和黄芪的整株坐果和花粉可用性。 桅杆播种植物果实或种子产量的波动是调节具有重要经济意义的野生动物和害虫物种的一个关键因素。 白皮松证明了了解桅杆式播种对管理的重要性。 在黄石国家公园,白树皮锥作物歉收导致人类灰熊冲突;管理人员需要预测非桅杆年,以处理这些冲突和相关的公共关系。 在冰川国家公园,白皮松已经被一种引入的病原体--白松疱锈病大量杀死。 预测桅杆年将有助于管理人员定位和收集抗性树木的种子,并设计恢复策略,保持桅杆播种的关键要素。 除了直接应用研究成果外,该项目还将为本科生和研究生提供教育机会,并与正在进行的为内城和美洲原住民本科生提供研究机会的项目相结合。
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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Elizabeth Crone其他文献
Sa2037 INTRODUCING THE BREATH BIOPSY® VOC ATLAS: A LIST OF GASTROINTESTINAL MICROBIOME-ASSOCIATED VOCS FOR BREATHBASED BIOMARKER DISCOVERY
- DOI:
10.1016/s0016-5085(24)01873-0 - 发表时间:
2024-05-18 - 期刊:
- 影响因子:
- 作者:
Nabeetha Nagalingam;Wisenave Arulvasan;Simon Coplowe;Ella Mead;Elizabeth Suk-Hang Lam;Steven Levett;Rosalia Hazel;Shane Swann;Matteo Tardelli;Hsuan Chou;Owen Birch;Julia Greenwood;Patrick Gordon;Giuseppe Ferrandino;Madeleine Ball;Lara Pocock;Billy Boyle;Elizabeth Crone - 通讯作者:
Elizabeth Crone
Do demographic processes change at extremely low population size in western monarch butterflies?
西方帝王蝶种群数量极低时,人口变化过程是否会发生变化?
- DOI:
10.1101/2021.10.22.465529 - 发表时间:
2021 - 期刊:
- 影响因子:0
- 作者:
Collin B. Edwards;Cheryl B. Schultz;Elizabeth Crone - 通讯作者:
Elizabeth Crone
Equity in cancer care: mixed methods clinical utility analysis of the Nursing Equity Assessment Tool (NEAT) to identify disadvantage in newly diagnosed cancer patients
- DOI:
10.1007/s00520-024-09094-x - 发表时间:
2024-12-30 - 期刊:
- 影响因子:3.000
- 作者:
Holly Chung;Elizabeth Crone;Karla Gough;Amelia Hyatt;Donna Milne;Meinir Krishnasamy - 通讯作者:
Meinir Krishnasamy
Modelling decisions and density dependence in monarch butterflies: A comment on Meehan and Crossley (2023)
帝王蝶的建模决策和密度依赖性:对 Meehan 和 Crossley (2023) 的评论
- DOI:
- 发表时间:
2024 - 期刊:
- 影响因子:3.5
- 作者:
Elizabeth Crone;Atticus W. Murphy;Cheryl B. Schultz - 通讯作者:
Cheryl B. Schultz
Estimating butterfly population trends from sparse monitoring data using Generalized Additive Models
使用广义相加模型根据稀疏监测数据估计蝴蝶种群趋势
- DOI:
10.1101/2023.12.07.570644 - 发表时间:
2023 - 期刊:
- 影响因子:0
- 作者:
Collin B. Edwards;Cheryl B. Schultz;David Sinclair;Daniel Marschalek;Elizabeth Crone - 通讯作者:
Elizabeth Crone
Elizabeth Crone的其他文献
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{{ truncateString('Elizabeth Crone', 18)}}的其他基金
RAPID: Population viability below the quasi-extinction threshold
RAPID:种群生存能力低于准灭绝阈值
- 批准号:
1920834 - 财政年份:2019
- 资助金额:
-- - 项目类别:
Standard Grant
Collaborative Research: Effects of pulsed floral resources on pollinator population dynamics
合作研究:脉冲花卉资源对传粉昆虫种群动态的影响
- 批准号:
1354224 - 财政年份:2014
- 资助金额:
-- - 项目类别:
Standard Grant
How important is "colored" stochasticity for plant population dynamics?
“有色”随机性对于植物种群动态有多重要?
- 批准号:
1411420 - 财政年份:2013
- 资助金额:
-- - 项目类别:
Standard Grant
How important is "colored" stochasticity for plant population dynamics?
“有色”随机性对于植物种群动态有多重要?
- 批准号:
1020889 - 财政年份:2010
- 资助金额:
-- - 项目类别:
Standard Grant
Starter Grant: Linking Life History, Behavior, and Plant Population Dynamics
入门补助金:将生命史、行为和植物种群动态联系起来
- 批准号:
0240963 - 财政年份:2003
- 资助金额:
-- - 项目类别:
Standard Grant
LTREB: Variance and Synchrony in Flowering and Dormancy of Iteroparous Perennial Wildflowers
LTREB:迭代多年生野花开花和休眠的方差和同步性
- 批准号:
0236427 - 财政年份:2003
- 资助金额:
-- - 项目类别:
Standard Grant
Postdoctoral Research Fellowship in Biosciences Related to the Environment for 1995
1995年与环境相关的生物科学博士后研究奖学金
- 批准号:
9509451 - 财政年份:1996
- 资助金额:
-- - 项目类别:
Fellowship Award
相似国自然基金
成束蛋白Fascin1在肺癌"self-seeding"过程中的作用及机制研究
- 批准号:81001041
- 批准年份:2010
- 资助金额:22.0 万元
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Seeding法制备TiAl金属间化合物定向片层组织的非平衡晶向选择机制研究
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- 项目类别:面上项目
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