Going Deeper into Issues Related to Nutria Population Size - Movie Review Example

The death rate of a species is another major factor that affects population size. If a species dies faster than it reproduces, there will be a great decrease in population size. The fourth factor that affects population size is the availability of food and appropriate habitat. Food provides the species with energy and ability to reproduce. In the video, there are some factors mentioned above that affect population size. Firstly, the birth rate of the nutria is quite high compared to other species.

This is because the female can give birth to three litters in a year and each litter contains roughly six young ones. Another factor that affects population size is immigration. This evident in the fur farms in Canada and United States of America, where populations of nutria have drastically increased. Another factor is the availability of food and the appropriate environment. This allows for the growth of the species. It is my prediction that there will be a decrease and eventual depletion of the nutria population after the land is depleted of the nutrias’ food resource.

This is because the nutria will migrate in search of food in other fertile regions. Secondly, the remaining nutria will eventually die of starvation due to a lack of nourishment. Thirdly, the nutria will become pests resorting to scavenging and stealing food from humans.