Did anoxia terminate Ediacaran benthic communities? Evidence from early diagenesis
نویسندگان
چکیده
منابع مشابه
Assessing evidence for random assembly of marine benthic communities from regional species pools
Local species diversity may be determined by processes operating locally, such as disturbance, predation and competition, or by regional processes, such as environmental structuring or history. Classical theory focusing on competition predicts that the species combining to form communities will be less similar to each other than they would be if they were assembled at random from a regional spe...
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[1] We present molybdenum isotope and concentration data from 14 sites in the eastern Pacific from the central California to the Peru margin. The environments studied have been chosen to represent a broad range in oxidation-reduction (redox) potential, which provide a framework for the behavior of this redoxsensitive element. Manganese-rich hemipelagic sediments from the eastern tropical Pacifi...
متن کاملOrdination Methods and the Evaluation of Ediacaran Communities
DOI 10.1007/978-94-007-0680-4_1, © Springer Science+Business Media B.V. 2011 Abstract Analysis of paleocommunity data poses a challenge because of its multivariate nature, containing counts of many species in many samples. Comparison of the abundance of a single species among all samples provides only incomplete information, whereas attempting to consider every species is impractical. Ordinatio...
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ژورنال
عنوان ژورنال: Precambrian Research
سال: 2018
ISSN: 0301-9268
DOI: 10.1016/j.precamres.2018.05.011