Pay attention to the relative sizes of the values, but you don t have to memorize them to understand the major concepts. Notice how both contain data collected by others, but the Nature paper reanalyzes the data collected by others in a novel synthesis. Read the Physics Today paper first, then the short Nature paper. Examine the Nature paper as a regular research paper and consider the methods the researchers used. Answer the 4 questions with respect to the Nature paper to turn in Fri.
Most terrestrial ecosystems are N-limited.
Human domination of earth s ecosystems. Lemonick Michael D. 2000. How to prevent a meltdown. Spring 2000 special edition. Earth Day 2000.