1. Living in the Environment
Population Ecology
G. Tyler Miller’s
Living in the Environment
14th Edition
Chapter 9

2. Key Concepts Factors affecting population size
Species reproductive patterns
Species survivorship patterns
Conservation biology and human impacts on ecosystems

3. Population Dynamics and Carrying Capacity
Biotic potential (intrinsic rate of increase [r])
Environmental resistance
Carrying capacity
Exponential and Logistic Growth
Population Density

4. Population Dispersion
Fig. 9-2 p. 164

5. Factors Affecting Population Size
Fig. 9-3 p. 166

6. Exponential and Logistic Growth

7. Population Density Effects
Density-independent controls
Density-dependent controls

8. Natural Population Curves
Fig. 9-7 p. 168

9. The Role of Predation in Controlling Population Size
Predator-prey cycles
Top-down control
Bottom-up control
Fig. 9-8 p. 168

10. Reproductive Patterns and Survival
Asexual reproduction
r-selected species
Sexual reproduction
K-selected species
Fig p. 170

11. Survivorship Curves
Fig p. 171

12. Human Impacts on Ecosystems
Habitat degradation and fragmentation
Ecosystem simplification
Genetic resistance
Predator elimination
Introduction of non-native species
Overharvesting renewable resources
Interference with ecological systems

13. Learning from Nature Dependence on Nature Interdependence
Unpredictability
See Connections p. 173
Limited resources
Recycle wastes