Structural changes of herbivory during the Middle Miocene time interval in the Upper Freshwater Molasse (OSM)

中中新世上部淡水磨拉石（OSM）食草动物的结构变化

• 批准号: 523893203
• 负责人: Professor Dr. Torsten Wappler
• 金额: --
• 依托单位: Standort Dresden
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/523893203?language=en
• 关键词: Structural; changes; herbivory; during; Middle

The fossil record provides unique information of the interactions of insects and plants in the form of a diversity of diagnostic traces of leaf damage reflecting insect attack. This record provides critical evidence for the impact of environmental change, including climate change, which is a major issue for mankind today. Within the Bavarian part of the North Foreland Basin, dozens of sand and gravel pits are located where sediments of a Middle Miocene fluvial system of the Upper Freshwater Molasse (OSM) are exposed. The more recently available stratigraphic resolution allows quite precise dating of the numerous fossil floras found here and thus a record of spatial and temporal vegetation changes. In this project, regional effects of climate-to-vegetation feedbacks of ecosystems during the Middle Miocene warming event (MMTO) and the subsequent cooling are investigated. Specifically, a period from 15 to 12 million years ago will be examined based on five well-studied fossil leafy floras, analyzing the types of feeding trails and thus the interactions between plants and insects. The high numbers of individuals and species in these floras allow a better understanding of environmental, climatological signals coupled with a significant variety of herbivory patterns preserved, which would definitely allow for more precise reconstructions of ecological inter-relationships. Parallels to current climate predictions and reconstructions for the Miocene show the relevance of such questions.

化石记录以各种反映昆虫攻击的叶片损伤的诊断痕迹形式提供了昆虫和植物相互作用的独特信息。该记录为环境变化的影响提供了关键的证据，包括气候变化，这是当今人类的主要问题。在北陆盆地的巴伐利亚部分内，数十个沙子和砾石坑位于上中新世河流河流中部河流杂草（OSM）的沉积物。最近可用的地层分辨率允许在此处发现的众多化石植物群，从而有很精确的日期，从而记录了空间和时间植被变化的记录。在这个项目中，研究了中新世变暖事件（MMTO）和随后的冷却期间生态系统气候到绿化反馈的区域影响。具体而言，将根据五个经过良好研究的化石植物群进行15到1200万年前的一段时间，分析喂食径的类型，从而分析植物与昆虫之间的相互作用。这些植物园中的大量个人和物种可以更好地了解环境，气候信号，并保留了各种各样的草食模式，这绝对可以更精确地重建生态相互关系。与当前的气候预测和中新世的重建相似，显示了此类问题的相关性。