Biocomplexity: The Co-evolution of Biodiversity and the Environment through Geologic Time

[00:83983]马歇尔我们的目标是寻找在地质时间尺度上控制生物多样性和环境共同进化的普遍性和共同过程，或“规律”。鉴于现有的时间序列不足以满足我们的目的，我们将继续发展我们的古生物学和地球化学数据库。古生物数据库将记录整个显生宙（过去5.43亿年）宏观生物的出现，包括地理、地层学、古环境、系统发育、体重和营养关系数据。地球化学数据库将包括岩石记录中有机碳和无机碳同位素组成的记录。利用这些数据库，我们将进行一系列分析，以表征生物圈进化的内在动态特性。此外，将对古生物学和环境数据进行区域剖析，以确定内在和外在因素在多大程度上介导了当地多样性的变化。

0083983MarshallOur goal is to search for generalities and common processes, or "laws", that govern the co-evolution of biodiversity and the environment over geological time scales. Given that available time series are inadequate for our purposes, we will continue to develop our paleontological and geochemical databases. The paleontological database will document the occurrences of macroscopic organisms throughout the Phanerozoic (the last 543 million years), and will include geographic, stratigraphic, paleoenvironmental, phylogenetic, body mass, and trophic relationship data. The geochemical database will include the record of the isotopic compositions of organic and inorganic carbon from the rock record. Using these databases we will conduct a series of analyses to characterize the intrinsic dynamic properties of the evolution of the biosphere. Further, the paleontological and environmental data will be dissected regionally to determine the extent to which intrinsic and extrinsic factors mediate local diversity changes.