权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Sauropod Food Ecology: Insights from plant-animal co-occurrence, paleobotany, and evolutionary history of the Jurassic conifer Araucaria

蜥脚类动物食物生态学：植物与动物共生、古植物学和侏罗纪针叶树南洋杉进化史的见解

基本信息

批准号：
37087357
负责人：
Professor Dr. Volker Mosbrugger
金额：
--
依托单位：
Senckenberg Forschungsinstitut und Naturmuseum
依托单位国家：
德国
项目类别：
Research Units
财政年份：
2007
资助国家：
德国
起止时间：
2006-12-31 至 2010-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/37087357?language=en
关键词：
Sauropod Food Ecology Insights plant

项目摘要

The exciting research results on sauropod food ecology generated in the first and second funding periods of Research Unit 533 have opened new questions on the feeding efficiency of specific habitats for the sauropods, which may have led to the specialization of sauropod taxa on certain plant groups by or to habitat partitioning among sauropods in the mid-Mesozoic. To help answer these questions, additional in-vitro fermentation experiments are proposed here that will focus on the digestibility of Araucaria and Equisetum— both of which are thought to have been accessible, efficient, and preferred sources of food for the sauropods—as well as that of water plants, which may have been important food sources for sauropods in coastal environments. Empirical measurements of biomass yield, based on the intake volume of a sauropod’s mouthful, will be made using cropping trials on the nearest living relatives of the Mesozoic flora. Using these data, the analysis of feeding efficiency in specific habitats (e.g., an Equisetum marsh, an “open” meadow of ferns, an Araucaria forest, a mixed forest of Araucaria and other conifers, and a mixed ecosystem of ferns, cycads, ginkgoes, and conifers) can be undertaken. The continued study of cuticle and wood from a sauropod bonebed (the Howe-Stephens Quarry) in the Morrison Formation at the Howe- Stephens Quarry will add to the species diversity of plants in this Late Jurassic sauropod ecosystem.

533研究单位在第一和第二个资助期内对蜥脚类动物食物生态学的令人兴奋的研究结果，对蜥脚类动物特定栖息地的摄食效率提出了新的问题，这可能导致了某些植物类群上蜥脚类动物类群的专门化，或者导致了中生代中期蜥脚类动物之间的栖息地划分。为了帮助回答这些问题，额外的体外发酵实验提出了这里，将集中在南洋杉和木贼的消化率-这两者都被认为是可访问的，有效的，和首选的食物来源的蜥脚类动物，以及水生植物，这可能是重要的食物来源蜥脚类动物在沿海环境。根据蜥脚类动物口腔的摄入量，将对中生代植物群最近的亲属进行种植试验，从而对生物量产量进行经验性测量。利用这些数据，分析了特定栖息地（例如，木贼沼泽，蕨类植物的“开放”草地，南洋杉森林，南洋杉和其它针叶树的混合森林，以及蕨类植物、苏铁、银杏和针叶树的混合生态系统）。对豪-斯蒂芬斯采石场（Howe-Stephens Quarry）莫里森组蜥脚类动物骨床（Howe-Stephens Quarry）的角质层和木材的继续研究将增加晚侏罗世蜥脚类动物生态系统中植物的物种多样性。