image: Dr. Jim Elser, Arizona State University. This image relates to an article that appeared in the Nov. 6, 2009, issue of Science, published by AAAS. The study, by Dr. James Elser of Arizona State University in Tempe, Ariz., and colleagues, was titled, "Shifts in Lake N:P Stoichiometry Are Driven by Atmospheric Nitrogen Deposition." view more
Credit: Image © Science/AAAS