Global diversity patterns and macroevolution of Palaeostomata (Bryozoa)
古口动物(苔藓虫)的全球多样性模式和宏观进化
基本信息
- 批准号:508852707
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:
- 资助国家:德国
- 起止时间:
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
The proposed research intends to study global macroevolutionary patterns in the Palaeostomata, a group of bryozoans almost completely restricted to the Palaeozoic. These animals were exceptionally important in marine biotopes of the Palaeozoic time, being often reef-producing and sediment-forming. A series of questions are targeted to reveal macroevolutionary patterns of bryozoans within the span of 280 Ma of the Earth history, and to determine links between the bryozoan macroevolution and biotic and abiotic ecological factors. In the course of the project data on temporal distribution of species and genera of the Palaeostomata as well as their morphology will be compiled. The diversity patterns will be evaluated in order to outline radiation and extinction events (evolutionary success). On the base of own research activity during the past two decades and study of an extensive material on Palaeozoic bryozoans, evolutionary trends (key novelties) in morphology of Palaeostomata (e.g., growth form, feeding, reproductive and protective structures, etc.) will be identified. These data will be calibrated with ecological factors (sea level, temperature, primary production, predator stress, etc.). An important question is which of these tendencies/novelties are associated with evolutionary success. The data set on bryozoan morphology will be checked for possible convergences and parallelisms. The main hypothesis of the planned research suggests that taxonomic diversity of bryozoans and its dynamics were correlated with evolution of key novelties. The trigger for the key innovations was apparently ecology (climatic changes, food supply, predator press, etc.). Results on bryozoans will be compared with other groups considering the known global events as well as used for detection of possible patterns of the co-evolution of bryozoans with interacting organisms.
拟议的研究旨在研究Palaeostomata中的全球宏观进化模式,这是一群bryozoans几乎完全限于古生代。这些动物在古生代时间的海洋生物室中非常重要,经常产生礁石和沉积物形成。一系列问题是针对地球历史280 MA内bryozoans的宏观进化模式的,并确定苔藓族宏观进化与生物和非生物生态因素之间的联系。在项目数据的过程中,将编译有关物种和属的属及其形态的属的时间分布。将评估多样性模式,以概述辐射和灭绝事件(进化成功)。在过去的二十年中,将确定在过去二十年的研究中以及对古生代谷仓的广泛材料的研究,鉴定在古生代的形态学中的进化趋势(重要的新颖性)(例如,生长形式,喂养,生殖和保护性结构等)。这些数据将通过生态因素(海平面,温度,初级生产,捕食者压力等)进行校准。一个重要的问题是,这些趋势/新颖性与进化成功有关。将检查有关可能的融合和并行性的桥形形态的数据集。计划研究的主要假设表明,苔藓族的分类多样性及其动态与关键新颖性的演变相关。关键创新的触发因素显然是生态学(气候变化,粮食供应,捕食者出版社等)。考虑到已知的全球事件,并将其用于检测河豚与相互作用的生物体共同进化的可能模式,将与其他群体进行比较。
项目成果
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数据更新时间:2024-06-01
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