| 项目编号: | 1701952
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| 项目名称: | DISSERTATION RESEARCH: Evolutionary Diversification and Community Assembly in Melanesian Forest Frogs: Testing the Hypothesis of Replicated Adaptive Radiation |
| 作者: | Rafe Brown
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| 承担单位: | University of Kansas Center for Research Inc
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| 批准年: | 2017
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| 开始日期: | 2017-07-01
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| 结束日期: | 2018-07-31
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| 资助金额: | 16286
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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: | biological community
; study
; assembly
; archipelago
; melanesian forest frogs
; community assembly
; melanesian island archipelago
; adaptive diversification
; independent adaptive radiation
; evolutionary relationship
; biological diversification
; macroevolutionary model
; frog ecomorph community
; melanesian archipelago
; melanesian forest frog
; conceptual evolutionary study
; adaptive radiation
; entire species community
; frog community
; evolutionary process
; similar frog community
; teaching evolutionary concept
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| 英文摘要: | Understanding the mechanisms that generate and regulate biodiversity patterns can provide broad insights into how biological communities assemble and diversify over different timescales. The importance of evolutionary processes for the generation of biodiversity in isolated island systems is well documented. However, the question remains: can processes like speciation and adaptation lead to predictable outcomes during the assembly of biological communities on islands? This study aims to address this question by examining patterns of frog diversity in the Melanesian island archipelagos of the Southwest Pacific. Melanesian forest frogs provide an ideal system to study adaptive processes of diversification because they are distributed across multiple island chains and exhibit a similar set of habitat specialists (ecomorphs), which are unique to each island group. This study will test the hypothesis that these ecologically similar frog communities evolved independently in each archipelago, resulting in the convergence of entire species communities. This project will document a remarkable case of convergent evolution that could provide additional evidence bearing on the evolution and assembly of biological communities worldwide. Portions of this research will also include advanced undergraduate mentoring in science, including genomic sequence capture data collection and analysis. Additionally, the results of this project will be integrated into a classroom learning module geared toward teaching evolutionary concepts to Kansas high school students.
A major goal of this study is to resolve the evolutionary relationships among Melanesian Forest Frogs of the genus Cornufer using an exon capture sequencing approach. Phylogenomic data will be integrated with morphometric and ecological data from all species throughout the Melanesian archipelagos to test whether (1) frog ecomorph communities evolved in each archipelago through independent adaptive radiations, (2) ecomorphs evolved only once and subsequently dispersed across archipelagos, or (3) a combination of both. Macroevolutionary models will then be used to evaluate whether frog communities in each archipelago are more or less ecomorphologically convergent that expected by chance, which may suggest that adaptive diversification and community assembly has been nonrandom in Melanesian Forest Frogs. This study will promote the development of another rich, multi-faceted model system of adaptive radiation for a variety of conceptual evolutionary studies on the process of biological diversification and community assembly. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/89901
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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: | |
Rafe Brown. DISSERTATION RESEARCH: Evolutionary Diversification and Community Assembly in Melanesian Forest Frogs: Testing the Hypothesis of Replicated Adaptive Radiation. 2017-01-01.
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