Bell-Ringer Quote of the Week: “When you think positive, good things happen.” – Matt Kemp What does this mean to you and how can you apply it to your daily life?

Population What things can change the dynamics of populations in different places?

Population Vocabulary: Population: all the inhabitants of a particular town, area, or country. Population distribution: the geographic pattern of where people live on Earth; it is uneven as well. Population density- the average number of people living within a square mile Urban areas are densely populated. Rural areas are sparsely populated.

What causes changes in Population? Migration: movement to another place Voluntary- Pull factors Involuntary – Push factors Birth Rate: the ratio between births and individuals in a specified population and time. (i.e. 1.80 births per woman in the U.S.) Death Rate: the ratio of deaths to the population of a particular area or during a particular period of time, usually calculated as the number of deaths per one thousand people per year. External Factors: disease, natural disasters, war, etc.

What are some potential problems with Population? Overpopulation: worsens numerous environmental and social factors such as pollution, malnutrition, overcrowded living conditions. Overpopulation also contributes to diseases spreading at a faster rate. Underpopulation: the population has declined too much to support its current economic system

Analyzing a population pyramid

Continued…

Bell-Ringer What are some potential problems with overpopulation?

Bell-Ringer Review: What is poaching? Why was it happening in East and South Africa?