Neogene herpetofauna, climate, and continental runoff of western Siberia

西西伯利亚新近纪爬行动物、气候和大陆径流

• 批准号: 147416809
• 负责人: Professorin Dr. Madelaine Böhme
• 金额: --
• 依托单位: Institut für Biologie und Umweltwissenschaften (IBU)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/147416809?language=en
• 关键词: Neogene; herpetofauna; climate; continental; runoff

Western Siberia comprises the drainage basin of the major Siberian rivers Irtysh and Ob, both flowing into the Kara Sea of the Arctic Ocean. The annual discharge of both rivers represents more than 20 % of the total Eurasian runoff into the Arctic Ocean. Due to potential freshwater forcing of the Arctic Ocean it is suspected that runoff variations affect ocean circulation and global climate evolution and might have promoted the late Neogene Northern Hemisphere glaciation. However, proxy data are still missing to corroborate this hypothesis. To study the influence of West Siberian runoff on Arctic paleoceanography and to test existing hypothesis about its role for Northern hemisphere glaciation we propose to develop a high-resolution paleo-precipitation database of the last 20 Myrs for West Siberia based on bioclimatic analysis of fossil herpetofauna (amphibians and reptiles). Using this database we are able to calculate Neogene West Siberian continental discharge into the Arctic Ocean. The proposed research will provide extremely valuable proxy-based results for paleoceanography and paleoclimatology. Moreover, by its taxonomicpaleobiologic research it will significantly contribute to the understanding of the evolution and biogeography of cool-temperate amphibians and reptiles of Eurasia

西伯利亚西伯利亚包括西伯利亚主要河流和OB的排水盆地，都流入北极海的卡拉海。两条河流的年度排放占欧亚河流径流的20％以上。由于潜在的北极海洋淡水强迫，因此怀疑径流的变化会影响海洋循环和全球气候进化，并可能促进了北半球新近纪的晚期冰川。但是，代理数据仍然缺少以证实这一假设。为了研究西西伯利亚径流对北极古海洋学的影响，并检验了有关其在北半球冰川作用的现有假设，我们建议开发一个基于化石源于化石的生物气候分析的西西伯利亚的最后20个MYR的高分辨率古质量数据库（Amphibians和Amphibians and pepteres）。使用此数据库，我们能够计算新近西伯利亚西伯利亚大陆的排放到北极海洋中。拟议的研究将为古海洋学和古气候学提供极为有价值的基于替代的结果。此外，通过其分类法生物学研究，它将极大地有助于理解欧亚大陆凉爽的两栖动物和爬行动物的进化和生物地理学

项目成果

A New Giant Salamander (Urodela, Pancryptobrancha) from the Miocene of Eastern Europe (Grytsiv, Ukraine)

• DOI: 10.1080/02724634.2013.722151
• 发表时间: 2013-03
• 作者: D. Vasilyan;M. Böhme;V. M. Chkhikvadze;Y. Semenov;W. Joyce