Population Dynamics: Population size, growth, composition and distribution ( Sociology Optional)

Introduction

  • Population is the whole number of inhabitants occupying an area and continually being modified by increases (births and immigrations) and losses (deaths and emigrations).
  • Few aspects of human population are as fundamental as the size, composition, and rate of change.
  • As per the "The Science of Population" paper published in 2015, Demography is the statistical study of populations, especially human beings. It is usually treated as a field of sociology.
  • Demography covers the whole societies or groups defined by criteria such as education, nationality, religion, ethnicity, family structure etc.
  • Population dynamics refers to how populations of a species change over time.
  • The study of human populations is called demography i.e. a discipline with intellectual origins stretching back to the 18th century.