The Human Population Growth

The Human Population Growth

According to my research there are two types of population’s growth.

The first is the exponential population growth model, which allows us to see the population’s expansive capabilities to an unlimited size and scope. Every generation is calculated by using specific factors to formulate the amount the populated has grown, by adding births and subtracting deaths over a certain time. These rates rely on the growth of the population that is calculated, depending on the environment factors; the population can either greatly increase or decrease. For example, a drought or even a severe storm can decrease a population significantly, because of the lack of resources such as food and water. However, the lack of competition for certain types of food sources can also have the opposite effect, and increase a population. While exponential growth is possible, it is not suitable because at some point the populations will consume all the necessary recourses for species to continue.

The second is logistic population growth model, which shows us that natural environments have limits on their natural resources that benefits population growth. Because of these limit, the species are kept in check and allow a certain amount of individuals to live successfully in any on environment. This growth rate of populations, in the logistic model, decreases as the population’s capability to further overtake an environment is no longer plausible. This is called carrying capacity, once this is reached; the growth rate stays at zero. Take the ocean for example; we will see that the food chain acts as a natural way to keep the species in check, thus keeping the populations under control. Humans can manipulate this “keeping in check”. However, because of over fishing of certain species, it has created the need for others to over breed. If we were to over fish