Population Density
population is defined as the total number of individuals of a species in a specific...
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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:
Population size or density: of a species is the number of individuals of a species per unit area or volume.
Birth or natality rate: It is expressed as the number of births per 1,000 individuals of a population per year.
Death or mortality rate: It is expressed as the number of deaths per 1,000 individuals of a population per year.
Sex ratio: It is expressed as the number of females per 1,000 males of a population in given time.