| 项目编号: | 1501566
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| 项目名称: | DISSERTATION RESEARCH: The effects of pollinator diversity loss on plant-pollinator interaction networks and native plant reproduction in scrub ecosystems of Southern California |
| 作者: | David Holway
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| 承担单位: | University of California-San Diego
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| 批准年: | 2014
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| 开始日期: | 2015-06-01
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| 结束日期: | 2017-05-31
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| 资助金额: | USD18092
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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: | diversity
; southern california
; native plant species
; research
; plant-pollinator
; pollination network
; pollinator
; reproduction
; plant-pollinator interaction
; extant pollinator taxa
; pollinator diversity
; plant pollination
; native plant
; scrub habitat field
; plant-pollinator interaction network
; pollinator diversity impact interaction
; scrub habitat fragment
; pollinator diversity loss
; such decline impact pollination ecosystem service
; pollinator diversity loss yield network
; natural ecosystem
; natural scrub habitat
; network architecture
; hands-on scientific research
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| 英文摘要: | Human development often causes declines in the diversity of pollinators, but little is known about how such declines impact pollination ecosystem services in natural (e.g., non-agricultural) ecosystems. For a series of scrub habitat field in large natural reserves and in small patches of natural scrub habitat embedded in urban landscapes sites in Southern California. The research will examine how declines in pollinator diversity impact interactions between pollinators and native plants and the reproduction of a native plant species. The findings of this project will be relevant to the conservation, management, and restoration of plant-pollinator interactions in natural ecosystems. Additionally, at least six undergraduate students will receive training in a diversity of laboratory and field techniques as well as mentorship regarding careers in science. Additional broader impacts of this project include engaging high school students in hands-on scientific research and contributing data on the diversity and distribution of Southern California native pollinators.
The research will evaluate the causal link between pollinator diversity and the structure and function of plant-pollinator interaction networks. Pollination networks will be constructed using empirical floral visitation observations study sites located in natural reserves and scrub habitat fragments in Southern California. A native plant species will also be experimentally introduced into study sites to evaluate how the restructuring of pollination networks may potentially impact plant pollination and reproduction. Two hypotheses will be tested: (1) pollinator diversity loss yields networks with higher modularity and fewer links than expected based on the number of extant pollinator taxa, and (2) changes in network architecture associated with pollinator diversity loss negatively affect floral visitation, pollen deposition, and overall reproductive fitness of a focal native plant species. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/94518
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
David Holway. DISSERTATION RESEARCH: The effects of pollinator diversity loss on plant-pollinator interaction networks and native plant reproduction in scrub ecosystems of Southern California. 2014-01-01.
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