| 项目编号: | 1502017
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| 项目名称: | DISSERTATION RESEARCH: Historical Changes in Food Web Structure of Large Rivers |
| 作者: | James Thorp
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| 承担单位: | University of Kansas Center for Research Inc
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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: | USD17427
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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: | food web
; river engineering
; ohio river
; riverine ecosystem
; riverine foodweb
; well-functioning foodweb
; large river
; long-term change
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| 英文摘要: | Large rivers are important for regional economies and global ecosystems. Dam construction is perhaps the most obvious human modifier of riverine ecosystems and hydrology, altering not only the physical environment but also biodiversity within the watershed. Well-functioning foodwebs are fundamental for sustaining rivers. Understanding riverine foodwebs is essential in planning for wildlife conservation, environmental protection, and floodplain management. Results of this project will serve as a model of historical analyses of foodwebs and the long-term implications of river engineering.
How has river engineering over the past hundred years altered food web structure in the Mississippi and Ohio rivers? Documenting long-term changes in aquatic ecosystems is notoriously difficult. In this proposal, we will use an innovative, new, chemical analysis technique on the tissues of museum fish specimens collected over the last century, thereby providing a more accurate and precise measurement of food webs than ever before possible. From this, we will determine what changes over time and possible shifts in food webs have occurred in response to river engineering in the Mississippi and Ohio rivers. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/94496
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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: | |
James Thorp. DISSERTATION RESEARCH: Historical Changes in Food Web Structure of Large Rivers. 2014-01-01.
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