| 项目编号: | 1406774
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| 项目名称: | DISSERTATION RESEARCH: The consequences of natural and anthropogenic geographic range expansion |
| 作者: | David Jablonski
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| 承担单位: | University of Chicago
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| 批准年: | 2013
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| 开始日期: | 2014-06-01
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| 结束日期: | 2016-05-31
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| 资助金额: | USD12816
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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: | research
; negative consequence
; expansion advantage
; species
; invasive expansion
; geographic range
; species expansion
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| 英文摘要: | A major scientific challenge today is understanding the consequences of biological invasions in response to environmental change. The proposed research uses fossil and modern data on marine clams and snails to compare evolutionary changes in species that have expanded geographic ranges along their native coasts with changes in invasive species that have crossed ocean basins with (accidental or intentional) human assistance. This research will evaluate biological characteristics that may confer an expansion advantage (for example, body size), analyze changes in shell shape between the source and colonized regions in both native and invasive expansions, and experimentally assess the contribution of genetic evolution to such shell shape variation.
Ultimately, this research seeks to understand biological invasions in marine systems through comparisons with ?native? species expansions, where the natives are coming into contact with novel climates and new ecological communities. Despite the negative consequences of invasive species, they may offer a window into the rapid evolutionary adaptation that occurs in a recently colonized region over contemporary timescales. The proposed research has the potential to give insight into the evolutionary responses of species to past climate change and may help us predict how species adapt in response to expansions under current climate change. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/96796
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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 Jablonski. DISSERTATION RESEARCH: The consequences of natural and anthropogenic geographic range expansion. 2013-01-01.
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