1. An example story BIOL E-127 – 9/24/07 (Nature 394:69-72)

2. Experimental design

3. Diversity observed in still medium after 7 days

4. Diversity & cell counts over time in each environment StillShaken

5. Maintenance of high diversity requires continued heterogeneity shaken still shaken still

6. Fitness of each is ‘frequency-dependent’

7. Caveat…

8. And a world was created in 7 days…

9. For Monday…

10. WEDNESDAY, SEPTEMBER 9, 2009 James Watson & E. O. Wilson time: 5:30 pm location: Sanders Theater Still tickets available for students… (HMNH admissions desk @ 26 Oxford St.)

11. THURSDAY, SEPTEMBER 10, 2009 Microbial Sciences Initiative Eric Alm MIT, Dept. of Biological Engineering “AGE of Innovation: a story about how life learned to breathe and thrive as recorded in hundreds of microbial genomes” Sept. 10 th @ 6PM Location: Center for the Environment (Rm 310) 24 Oxford St, Harvard University, Cambridge Please join us for a wine and cheese reception at 5:30 pm - MSI Seminar Schedule: http://www.msi.harvard.edu/thursdays.html http://www.msi.harvard.edu/thursdays.html - Directions to 24 Oxford St: http://www.msi.harvard.edu/ov_dir.html http://www.msi.harvard.edu/ov_dir.html