Question

Explain four basic processes due to fluctuation in density of population in a given habitat?

Answer 1

The population density:

1. Population density or density of population is the measurement of the number of people in a given volume or area.
2. The four primary processes of natality, death, immigration, and emigration causes changes in the population density of a particular habitat.
3. Immigration and natality both enhance population density.
4. Decreases in population density are caused by emigration and mortality

Natality:

Natality refers to the number of births during a given period in the population that are added to the initial density.

Mortality:

Mortality is the number of deaths in the population during a given period.

Immigration:

Immigration is the number of individuals of the same species that have come into the habitat from elsewhere during the time period under consideration.

Emigration:

Emigration is the number of individuals of the population who left the habitat and gone elsewhere during the time period under consideration.