Biodiversity and plankton-benthos coupling: an integrated ecosystem analysis from the Late Cretaceous Chalk

生物多样性和浮游生​​物-底栖动物耦合：白垩纪晚期白垩纪的综合生态系统分析

• 批准号: 221782871
• 负责人: Professor Dr. Jörg Mutterlose
• 金额: --
• 依托单位: Institut für Geologie, Mineralogie und Geophysik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/221782871?language=en
• 关键词: Biodiversity; plankton; benthos; coupling; integrated

The structure of marine fossil food chains in pre-Cenozoic oceans is poorly understood due to a bias of integrated palaeobiological studies towards the reconstruction of past geological environments. Despite an often good knowledge of the taxonomic and palaeoecologic affinities of individual groups of organisms (e.g. calcareous nannofossils, foraminifera, bivalves, etc.), hardly any approaches exist which integrate quantitative and qualitative palaeobiological data from taxonomically different macroand microfossils in order to reconstruct food chains, feeding patterns and nutrient fluxes of the past. We aim at reconstructing the structure and composition of a Cretaceous food chain by deciphering coupling patterns of primary producers and consumers. By studying plankton and benthos from the same samples of Lower Maastrichtian Chalk, attributed to a stable oligotrophic phase, we want to answer the following questions: a) How did the pelagic-benthic coupling and nutrient flow operate under oligotrophic conditions in a large epicontinental shelf area? b) What are the effects of low vertical Corg fluxes for benthic associations? c) Are minor productivity changes across orbitally forced cycles reflected by palaeontological and geochemical proxies? d) What is the palaeoecologic and palaeooceanographic significance of specific macrofossil-rich horizons? Ultimately, the combined data set will result in an integrated ecosystem analysis of the Late Cretaceous Chalk Sea.

由于综合古生物学研究偏向于重建过去的地质环境，对前新生代海洋中海洋化石食物链的结构了解甚少。尽管对生物个体群（如钙质超微化石、有孔虫、双壳类等）的分类学和古生态学亲缘关系有很好的了解，目前几乎没有任何方法可以综合从分类学上不同的宏化石和微体化石中获得的定量和定性古生物学数据，以重建过去的食物链、摄食模式和营养流。我们的目标是通过破译初级生产者和消费者的耦合模式来重建白垩纪食物链的结构和组成。通过研究下马斯特里赫特白垩的相同样品的浮游生物和底栖生物，归因于一个稳定的贫营养阶段，我们想回答以下问题：a）在贫营养条件下，在一个大的陆缘陆架区的浮游生物-底栖生物的耦合和营养流是如何运作的？B）低垂直Corg通量对底栖生物群落有什么影响？c）古生物学和地球化学代用指标是否反映了轨道强迫循环的微小生产力变化？d）特定的富含大型化石层位的古生态学和古海洋学意义是什么？最终，合并后的数据集将导致晚白垩世白垩海的综合生态系统分析。

项目成果

The benthic macrofauna from the Lower Maastrichtian chalk of Kronsmoor (northern Germany, Saturn quarry): taxonomic outline and palaeoecologic implications

Kronsmoor（德国北部，土星采石场）下马斯特里赫特阶白垩层中的大型底栖动物：分类学概要和古生态学意义

• DOI: 10.1515/agp-2016-0036
• 发表时间: 2016
• 期刊: Acta Geologica Polonica
• 影响因子: 1.1
• 作者: Engelke;Linnert;Mutterlose;Wilmsen
• 通讯作者: Wilmsen

The impact of the Maastrichtian cooling on the marine nutrient regime—Evidence from midlatitudinal calcareous nannofossils

马斯特里赫特冷却对海洋营养状况的影响——来自中纬度钙质超微化石的证据

• DOI: 10.1002/2015pa002916
• 发表时间: 2016
• 期刊: Paleoceanography
• 作者: Linnert;Engelke;Wilmsen;Mutterlose
• 通讯作者: Mutterlose

Early Maastrichtian benthos of the chalk at Kronsmoor, northern Germany: implications for Late Cretaceous environmental change

德国北部克朗斯莫尔的早期马斯特里赫特白垩底栖生物：对白垩纪晚期环境变化的影响

• DOI: 10.1007/s12549-017-0283-2
• 发表时间: 2017
• 期刊: Palaeobiodiversity and Palaeoenvironments
• 影响因子: 1.4
• 作者: Engelke;Linnert;Mutterlose;Wilmsen
• 通讯作者: Wilmsen

High-resolution Campanian-Maastrichtian carbon and oxygen stable isotopes of bulk-rock and skeletal components: palaeoceanographic and palaeoenvironmental implications for the Boreal shelf sea

大块岩石和骨骼成分的高分辨率坎帕尼亚-马斯特里赫特碳和氧稳定同位素：对北方陆架海的古海洋和古环境影响

• DOI: 10.1515/agp-2017-0004
• 发表时间: 2017
• 期刊: Acta Geologica Polonica
• 影响因子: 1.1
• 作者: Wilmsen;Niebuhr
• 通讯作者: Niebuhr

Tracking Late Cretaceous environmental change: Geochemical environment of the upper Campanian to lower Maastrichtian chalks at Kronsmoor, northern Germany

• DOI: 10.1016/j.cretres.2017.10.001
• 发表时间: 2018-04
• 期刊: Cretaceous Research
• 影响因子: 2.1
• 作者: Julia Engelke;Christian Linnert;B. Niebuhr;B. Schnetger;H. Brumsack;J. Mutterlose;M. Wilmsen