| 项目编号: | 1501802
|
| 项目名称: | DISSERTATION RESEARCH: Evolution of convergent functional systems in a hyperdiverse clade of parasitic wasps (Hymenoptera, Ichneumonidae, Cryptini) |
| 作者: | James Carpenter
|
| 承担单位: | American Museum Natural History
|
| 批准年: | 2014
|
| 开始日期: | 2015-06-01
|
| 结束日期: | 2016-05-31
|
| 资助金额: | USD19250
|
| 资助来源: | US-NSF
|
| 项目类别: | Standard Grant
|
| 国家: | US
|
| 语种: | 英语
|
| 特色学科分类: | Biological Sciences - Environmental Biology
|
| 英文关键词: | cryptine wasp
; convergent evolution
; body shape
; evolutionary biology
; complex functional system
; parasitic wasp
; evolutionary relationship
|
| 英文摘要: | Convergent evolution - the presence of similar characteristics among independent lineages - is one of the oldest and most fascinating patterns in evolutionary biology. Convergence shapes so many aspects of life?s diversity that understanding it is essential to our knowledge of biological variation and evolution. In spite of that, convergent traits have often been documented only qualitatively. This study will use a rigorous methodological approach to investigate how similar life strategies can produce convergence in the body shape of a diverse group of insects. Cryptine wasps are a dominant but poorly known group of parasitic insects. Their hosts are concealed to various degrees, from mimicking leaf rolls and twigs to tree logs and clay nests. Species attacking insects that are deeply concealed have evolved a number of adaptations to find and reach their hosts. We will investigate the hypothesis that these features are linked in a complex functional system, and that the convergence of life strategies imposes constraints on the body shape of cryptine wasps. In addition to the scientific products resulting from this project, outreach and mentoring work will broadly disseminate scientific knowledge about convergent evolution and parasitic wasps, taking advantage of the unparalleled resources for scientific education available at the American Museum of Natural History.
This project will use a phylogenetic framework to investigate the impact of convergent life strategies in the morphospace occupied by cryptine wasps. This will require a comprehensive analysis of the evolutionary relationships among cryptine wasps, with data derived from both DNA sequences and morphological characters. Statistical methods will be used to to reconstruct the ancestral features for host location adaptations and to test hypotheses of correlation among life history traits and multiple morphological characters. Finally, a series of quantitative traits and measurements will be used to generate a multi-dimensional estimation of body shape (morphospace), allowing for quantitative tests of morphological overlap and convergence |
| 资源类型: | 项目
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/94486
|
| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
|
|
There are no files associated with this item.
|
| Recommended Citation: | |
James Carpenter. DISSERTATION RESEARCH: Evolution of convergent functional systems in a hyperdiverse clade of parasitic wasps (Hymenoptera, Ichneumonidae, Cryptini). 2014-01-01.
|
|
|