| 项目编号: | 1633535
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| 项目名称: | Late Cenozoic dynamics of the latitudinal biodiversity gradient: Regional extinction, range expansion, and biological attributes |
| 作者: | David Jablonski
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| 承担单位: | University of Chicago
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| 批准年: | 2016
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| 开始日期: | 2016-09-01
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| 结束日期: | 2019-08-31
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| 资助金额: | 401560
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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: | Geosciences - Earth Sciences
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| 英文关键词: | species
; range-contraction
; marine biodiversity
; latitudinal diversity gradient
; present-day diversity gradient
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| 英文摘要: | The most dramatic biological pattern on Earth, the gradient of increasing diversity of species and major groups from the poles to the tropics, is well-documented but the processes generating and maintaining this pattern remains poorly understood. Understanding the factors behind the latitudinal diversity gradient is crucial for developing a more rigorous picture of the dynamics of biodiversity, and for better management of marine biodiversity informed by history to predict species' responses to future global changes.
To investigate those processes, this research will inventory the past and present spatial distributions of species in an ecologically and economically important group, the marine bivalves, an ideal target because their excellent fossil record can track the origin, spread, and range-contraction of lineages in response to past episodes of global change. Factors potentially shaping the present-day diversity gradient, such as the rate of environmental change and features of the species themselves, such as food source and body size, will be evaluated by synthesizing museum collections and published records. The work will contribute a large block of data to the public Paleobiology Database, support training of undergraduates and a postdoctoral scholar, and produce on-line educational resources, including a high-school teaching module derived from the research. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/91287
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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: | |
David Jablonski. Late Cenozoic dynamics of the latitudinal biodiversity gradient: Regional extinction, range expansion, and biological attributes. 2016-01-01.
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