Throughout the World different areas experience underpopulation and overpopulation at different times due to the unpredictable and complex practise of migration. Underpopulation occurs when there are far more resources in an area, such as food energy and minerals, than can be used by the people living there. Overpopulation occurs when there are too many people and not enough resources and technology to support these people. Countries such as China and Bangladesh have overpopulation as there are often food shortages and insufficient energy and mineral resources to support the population. The increasing globalisation in the world together with the wide and growing gap between the rich and the poor has seen migration increase over the years which means that it is virtually impossible for area to gain an optimum population and maintain it. The optimum population of an area is the number of people which , when working with all the available resources, will produce the greatest yield of economic return, per capita, which means the highest standard of living.
China, Shibangou Bridge underpass, Fuling, Yan...
English: On the Yangtze River in China, just befor...
Afternoon light on the jagged grey mountains risin...People migrate usually migrate from a rural to an urban area due to push and pull factors. People are deterred from living in rural areas as the work is more labour intensive, crops often fail and there are fewer amenities and services. People are attracted to the city as there is the chance of a better paid, less labour intensive job, there are more better quality amenities and there is the chance to eventually be accommodated in a better quality house. Migration can be such an unpredicatable trend, which can change an area experiencing underpopulation to an area with overpopulation. This is particularly the case with refugees who often flee in mass numbers from wars and conflict in the home nation. When mass numbers of people leave an area this...