Processes generating Diversity Patterns in Antarctic Shelf and Deep-Sea Shrimps (Crustacea: Decapoda: Caridea): Genetic and Morphometric Analyses combined with Enviromental Niche Models (ENMs)

南极陆架和深海虾（甲壳纲：十足目：虾总纲）多样性模式生成过程：遗传和形态计量分析与环境生态位模型 (ENM) 相结合

• 批准号: 75404376
• 负责人: Privatdozent Dr. Michael Jürgen Raupach
• 金额: --
• 依托单位: Zoologische Staatssammlung München
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2012-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/75404376?language=en
• 关键词: Processes; generating; Diversity; Patterns; Antarctic

Although only a few decapod species inhabit the waters of Antarctica, shrimps (Decapoda: Caridea) represent an important and abundant element of the Antarctic shelf and deep-sea benthos. In this study, a combined approach based on a) mitochondrial and nuclear DNA sequences, b) microsatellites c) morphology/morphometric studies and d) Environmental Niche Models (ENMs) will be used to compare phylogeography, population structure, genetic/morphological variability and distribution of the shallow-water shrimp Chorismus antarcticus and the deep-sea shrimp Nematocarcinus lanceopes in detail for the first time. The results will help us, in combination with oceanographic data and environmental gradients, to understand currently unknown processes generating diversity and radiation processes within Antarctic shelf and deep-sea taxa with pelagic larval stages in detail. In this context, we will receive a new understanding of the genetic structure of species in a polar ecosystem that was subjected to glaciation events of Antarctica in the past and is likely to be impacted by global climatic change in the near future. The use of Environmental Niche Models allows us to project the species’ current realized environmental niches onto palaeoclimatic and future climate change scenarios.

虽然只有少数十足类物种栖息在南极洲的沃茨，但虾（十足目：Caridea）是南极大陆架和深海底栖生物的重要和丰富的组成部分。在这项研究中，基于a）线粒体和核DNA序列，B）微卫星，c）形态学/形态测量学研究和d）环境生态位模型（ENMs）的组合方法将被用来比较浅水虾Chorismus anarcticus和深海虾Nematocarcinus lanceopes的生态地理，种群结构，遗传/形态变异和分布的详细第一次。这些结果将有助于我们结合海洋学数据和环境梯度，详细了解目前未知的南极大陆架和深海浮游幼虫阶段类群的多样性产生过程和辐射过程。在这方面，我们将获得对极地生态系统中物种遗传结构的新认识，该生态系统过去曾遭受南极洲冰川事件的影响，并可能在不久的将来受到全球气候变化的影响。环境生态位模型的使用使我们能够将物种当前实现的环境生态位投射到古气候和未来气候变化情景上。