Age structure

Definition

Age structure is the distribution of individuals among different ages in a population. It greatly influences population growth and social dynamics.

5 Must Know Facts For Your Next Test

1. The age structure of a population can be visualized using an age pyramid.
2. Age structure impacts birth rates, death rates, and migration patterns.
3. A younger age structure typically indicates potential for rapid population growth.
4. An older age structure can lead to increased healthcare and retirement costs.
5. Population policies and social programs often use age structure data to plan services.

Review Questions

• What does an age pyramid illustrate about a population?
• How does a younger age structure affect potential population growth?
• Why is understanding age structure important for planning social services?

Related terms

Demographic Transition: A model that describes population change over time as it transitions from high birth and death rates to low birth and death rates.

Cohort: A group of individuals of the same age within a population, observed over time.

Population Density: The number of individuals per unit area or volume in a habitat.