Population Living Environment

Objectives…I can… Identify factors that affect population size. Identify factors that limit population growth. Differentiate between exponential and logistic growth.

1. Population Growth Factors that affect population size: 1. number of births 2. number of deaths 3. number of individuals that enter or leave the population

Carrying Capacity The largest number of individuals of a population that a given environment can support. There must be enough... Food Water Shelter Space

2. Types of Growth Exponential Growth – growth rate increases at a constant rate (J-shaped curve) (can occur only with ideal conditions) Logistic Growth – growth rate slows or stops when carrying capacity is met (S-shaped curve)

3. Limiting Factors Factors that limit or control population growth Examples:

Human Population Growth

Human Population Information Census Bureau