| 项目编号: | 1601219
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| 项目名称: | DISSERTATION RESEARCH: The effects of climate-driven phenological shifts on plant-pollinator interactions and reproductive success |
| 作者: | Laura Burkle
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| 承担单位: | Montana State University
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| 批准年: | 2016
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| 开始日期: | 2016-06-01
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| 结束日期: | 2018-05-31
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| 资助金额: | 18706
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Biological Sciences - Environmental Biology
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| 英文关键词: | bee
; plant
; negative effect
; forb reproductive success
; forb-bee interaction pattern
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| 英文摘要: | Reproduction in most flowering plants, including one-third of crops, is aided through pollination by bees. The nearly 4000 species of bees native to the USA may become more important pollinators of crops as honey bee populations continue to decline. As climate-warming continues, there is concern that plant and bee species are shifting the timing of their activities unequally, causing a mismatch in the time of activity. If plants flower when bees are not active, reproduction could fail. This project will investigate how shifts in the timing of important activities will affect how plants and bees interact, and the consequences for plant reproduction. Results will help to understand how climate change will affect wild plant and crop reproduction, with implications for biodiversity and global food production. The scientific workforce will be strengthened through support for the education and training of a doctoral student and participation of an undergraduate from an underrepresented group.
Climate-warming has altered the amount of phenological overlap between coevolved plant and pollinator species. Using forb and solitary bee species native to Montana, forb-bee community composition will be manipulated within enclosed mesocosms. Bee emergence and plant blooming times will be controlled by strategic overwintering and greenhouse management. Blooming forbs and emerging bees will be assigned to mesh-sided mesocosms following a factorial design based on phenologies. The effects of altered phenological overlap on forb-bee interaction patterns and forb reproductive success will be assessed by conducting bee visitation observations at each mesocosm and determining the number and mass of seeds produced for each plant species. Empirical evidence generated by this study will help pinpoint plant and pollinator species most vulnerable to the negative effects of climate change, as well as inform conservation actions. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/92243
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Laura Burkle. DISSERTATION RESEARCH: The effects of climate-driven phenological shifts on plant-pollinator interactions and reproductive success. 2016-01-01.
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