1. Species Richness
A graphical stroll

2. Richness Metrics Richness
EPT richness
Ephemeroptera richness
Plecoptera richness
Trichoptera richness
??? richness
Assumed to decrease with increasing impairment

3. Speciation Immigration Extinction
Three Basic Processes
Speciation
Immigration
Extinction

4. How Many Different Concepts?
Succession
Disturbance
Island biogeography
Patch dynamics
Hierarchy
Competition – predation
A Unified Theory

5. Rosenzweig 1996

6. Rosenzweig 1996

7. Rosenzweig 1996

8. Rosenzweig 1996

9. Rosenzweig 1996

12. Rosenzweig 1996

13. Rosenzweig 1996

14. Rosenzweig 1996

15. Rosenzweig 1996

16. Rosenzweig 1996

17. Rosenzweig 1996

18. Rosenzweig 1996

19. Rosenzweig 1996