1. Evolution and Biodiversity Origins, Niches, and Adaptation Chapter 5
“There is a grandeur to this view of life…that, whilst this planet has gone cycling on…endless forms most beautiful and most wonderful have been, and are being evolved.”
Charles Darwin

2. Key Concepts Origins of Life Evolutionary processes Ecological niches
Species formation
Species extinction

4. Origins of Life Chemical evolution Biological evolution
Fig. 5-2 p. 96; Refer to Fig. 5-4 p. 98

5. Evolution and Adaptation
Macroevolution
Microevolution
Gene pool
Mutation
Natural selection

6. Natural Selection Differential approach Adaptive trait
Directional selection
Stabilizing selection
Diversifying selection
Co-evolution

7. Ecological Niches and Adaptation
Habitat
Fundamental niche
Realized niche

8. Broad and Narrow Niches
Generalist species
Specialist species

9. Speciation, Extinction, and Biodiversity
Geographic Isolation
Reproductive Isolation
Fig. 5-8 p. 105

10. Extinction
Background extinction
Mass extinction
Adaptive radiation