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Population Density

population is defined as the total number of individuals of a species in a specific...

Population Attributes
  • Population is defined as the total number of individuals of a species in a specific geographical area, which can interbreed under natural conditions to produce fertile offspring and function as a unit of biotic community.

  • Population ecology links ecology to population genetics and evolution.


Characteristics of a population:
  1. Population size or density: of a species is the number of individuals of a species per unit area or volume.

  2. Birth or natality rate: It is expressed as the number of births per 1,000 individuals of a population per year.

  3. Death or mortality rate: It is expressed as the number of deaths per 1,000 individuals of a population per year.

  4. Sex ratio: It is expressed as the number of females per 1,000 males of a population in given time.

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