Meaning of Population Growth
What is Population Growth:
Population growth refers to the increase in the number of inhabitants in a given space and time, which can be measured through an arithmetic formula. The term population growth can also be used as a synonym.
When mentioning population growth, it can refer to any animal species, however, it is often used to refer to human beings, especially when researching population growth is carried out.
The data obtained from these analyzes are of great importance, both for the governments of a country and for the different international organizations.
It should be noted that during the 20th century the population of human beings has grown and continues to grow in a large percentage, which has generated concern, especially due to its consequences on the use and care of natural resources, among others.
Urban areas are those with the highest demographic growth, as well as developing countries. On the contrary, population growth is lower in developed countries.
For example, population growth in Mexico has been increasing throughout its history, it is the country with the most Spanish-speaking inhabitants in Latin America. Mexico has a population of approximately 130 million inhabitants, and it is estimated that it will continue to grow thanks to various factors thanks to its continuous political, economic and social development.
- Birth rate.
Types of population growth
There are two types of population growth called exponential growth and logistic growth.
Exponential Growth - Presents data with a J-shaped curve, reflecting how populations grow very fast and then stop suddenly due to various factors.
Logistic growth: presents the population growth data through an S-shaped curve (sigmoid). It exposes the data of a population whose growth has a slow stage, then it picks up speed and grows and, finally, it decreases gradually, seeking an equilibrium.
Population growth rate
The population growth rate is an index that is used in both demographic and ecological research in order to show how the population of a species has increased or decreased in a specific place and time.
The results obtained are generally shown in percentages and are used both to compare with previous analyzes and to make future approximations.
On the other hand, the measurement of the population growth rate is directly affected by both four important indices: birth, mortality, emigration and immigration, which vary over time and due to various circumstances.
The formula to obtain the population growth rate data is obtained as follows:
Population growth rate = (population at the end of the period) - (population at the beginning of the period) / population at the beginning of the period.
However, the equation that is usually used to express the variations in population growth during a period and in percentage is the following:
Percentage growth = rate / growth x 100%
Now, if the result obtained is a positive value, then it means that the number of inhabitants of a country or region has increased.
In the opposite case, if it returns a negative number, it is because population growth has decreased. But, in case of obtaining a zero as a result, that means that the population is balanced.