Content with the tag: “biogeochemical cycles”
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Emerging Topics in Biogeochemical Cycles (ETBC)
The National Science Foundation (NSF) recently announced further support for interdisciplinary research concerning biogeochemical cycles and processes that involve the biological, atmospheric, geological, oceanographic and hydrological sciences. The goal of the program is to “advance our quantitative and/or mechanistic understanding of biogeochemical cycles”. Proposals are being accepted that integrate physical, geological, chemical, and/or hydrologic processes with biological processes over various temporal and/or spatial scales and/or various levels of biological organization.
Biogeochemical cycles play an important role in making Earth habitable for life as we know it. Understanding these cycles is essential in determining what makes...March 4, 2009 / Posted by: Aaron Gronstal
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Cycling Nitrogen
NASA-funded researchers at the University of Washington have shown that microorganisms completed large-scale steps in the their evolution by 2.5 billion years ago. This means that the major branches of microbial life were before we have any record of them. One important aspect of this evolution was the development of microbes capable of fixing nitrogen. This metabolic pathway had profound effects on the environment of Earth and the evolution of all life on our planet.
Source: [Astrobiology Magazine]
February 21, 2009 / Posted by: Aaron Gronstal
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