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Diversity dynamics and evolutionary patterns of Carboniferous Bryozoa

石炭纪苔藓虫多样性动态与进化模式

基本信息

批准号：
179062650
负责人：
Privatdozent Dr. Andrej Ernst, Ph.D.
金额：
--
依托单位：
Institut für Geologie
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2010
资助国家：
德国
起止时间：
2009-12-31 至 2013-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/179062650?language=en
关键词：
Diversity dynamics evolutionary patterns Carboniferous

项目摘要

This proposal aims to study diversity dynamics and evolution patterns of bryozoans during the Carboniferous. Bryozoans are among the best-represented macroinvertebrates in the fossil record, because of the presence of a calcareous skeleton in the great majority of species. The Carboniferous bryozoan communities responded to the Late Devonian extinctions by renewed adaptive radiation and rediversification. Their diversity and evolution was influenced by such events as extensive glaciation and building of Pangaea. Bryozoan diversity could have been controlled by different extrinsic factors (climate, availability and quality of habitats, food supply) as well as intrinsic causes (environmental resistance/tolerance, adaptation, protecting, convergence, morphologic specialization etc.). The present study will include a critical species and genus level compilation of the data from the published literature and own taxonomic investigations. The compiled data base will be used to study diversity dynamics as well as rates of taxonomic turnover in bryozoans during the Carboniferous. The data gained will help to answer questions whether the bryozoan diversity during the Carboniferous was controlled by extrinsic or intrinsic factors, what kind of interaction between these factor groups could have existed, and how the bryozoan diversity and evolutionary patterns can be compared with those of other marine animal groups.

本文旨在研究石炭纪苔藓动物的多样性动态和演化模式。苔藓虫是化石记录中最具代表性的大型无脊椎动物之一，因为大多数物种都有钙质骨骼。石炭纪苔藓动物群落对晚泥盆世的灭绝作出了新的适应性辐射和再多样化的反应。它们的多样性和演化受到广泛的冰川作用和泛大陆建造等事件的影响。苔藓虫多样性可能是由不同的外在因素（气候，栖息地的可用性和质量，食物供应）以及内在原因（环境抗性/耐受性，适应，保护，收敛，形态专业化等）控制。本研究将包括对已发表文献和自己的分类学调查中的数据进行关键种和属水平的汇编。编译的数据库将被用来研究多样性动态以及在石炭纪苔藓虫分类营业额的速度。这些数据将有助于回答石炭纪苔藓动物多样性是由外在因素还是内在因素控制的问题，这些因素之间可能存在什么样的相互作用，以及苔藓动物多样性和进化模式如何与其他海洋动物群体进行比较。