Objectives for Populations

Objectives for Populations:

____P1. Define population

____P2. Describe methods for estimating population size and density.

____P3. Identify factors that influence the density and distribution of populations.

____P4. Explain how population size changes over time and identify causal factors.

____P5. Outline how population size is affected by natality, immigration, mortality and emigration.

____P6. Draw and label a graph showing a sigmoid (S-shaped) population growth curve.

____P7. Explain the reasons for the exponential growth phase, the plateau phase and the transitional phase between these two phases.

____P8. List three factors that set limits to population increase.