The Human Population Essay

Global population; it’s what has been mystifying and engaging our human geographers for centuries. In fact, the various stages of the demographic transition have shown what the population is acting as now, and how it will change in the future. Starting right here in the United States, we are having a very successful time maintaining a small growth population. Our 1.83 child per woman ratio is slightly below the zero growth 2.03, but our population continues to grow because of our governmental decision to approve immigration into the country. Because of this vital decision, it allows our population to continually grow. Now, back to the demographic transition stages. The United States is currently in Stage 4 along with many other Developed European

In developed countries the birth and infant mortality rate is lower than developing countries. With the developing countries having a higher birth rate they also have a higher infant mortality rate. It is difficult to predict the earth’s population growth because of the different stages a country might be in, or how fast they move from one to another. Stage one is preindustrial, this is when the birth rate is high but so is the death rate so the population is low. Stage two is the transitional stage where the birth rate is still high but health care has gotten better so the death rate has decreased and the population is skyrocketing. Stage three is the industrial stage this is when the birth rate is still increasing even though the death rate has stayed the same making the population still increase. In the final stage postindustrial the birth rates are very low because of birth control and people desiring smaller families. The death rate is still how and the population slowly

The Dominican Republic is a developing country in the early expanding stage of their demographic transition. This means their Crude Birth Rate (CBR) is constant, their Crude Death Rate (CDR) is decreasing exponentially, and their Rate of Natural Increase (RNI) is growing. All of these values correspond to the number of births per 1000, number of deaths per 1000, and population growth or the (CBR – CDR), is greater than zero indicating growth of population annually, respectively. These values of the Dominican Republic and more are shown below in comparison to the average values of the world.

The demographic transition is a three-stage model of population growth in Europe. In the first stage there is a stable population because birth and death rates are both high. The second stage happens as mortality rates begin to slowly decline, but birth rates stay high. When this stage happens, there is fast population growth. During the third stage, the population is more stable as both birth and death rates are low and are more or less balanced. In more recent years, a fourth stage as been brought on by Anti-Malthusians. During this stage, population shrinkage occurs because the deaths begin to outnumber the births. Europe provides a great example to the theory of demographic transition. After speedy population growth of stage two, Europe settled at stage three with a stable population. It is currently in stage four with a shrinking population. In most European nations there are lesser births than deaths which could ultimately create other social problems.

The demographic transition theory is a widespread explanation of the changing mold of humanity, fertility and increase rates as civilizations move from one demographic system to another. “The term was first coined by the American demographer Frank W. Notestein in the mid-twentieth century, but it has since been elaborated and expanded upon by many others” (The Demographic Transition, 2012). There are four stages of demographic transition.

The first stage; age of pestilence and famine is characterized by high fluctuation of mortality rate and birth rate. McLeroy and Crump (1994) stated “…..is characterized by high deaths rates, endemic diseases, chronic under nutrition or malnutrition, and periodic epidemic of infectious diseases and famine”. Due to this, population growth was really slow and this stage is considered as a stationary phase. High birth rate was due to all the factors associated with high fertility such as lack of family planning education, child bearing age, and

In the first proposition, Omran argues that the mortality is the primary factor in population dynamics. The second proposition states that a long-term shift occurs in mortality and disease patterns by which pandemics of infectious diseases are gradually shifted from degenerative and man-made diseases: making these diseases the main causes of death (Mckeown, 2009). Originally, Omran wrote the second proposition which included three transitions called, “The Age of Pestilence and Famine” (mortality rates are high with average life expectancy being low), “The Age of Receding Pandemics” (epidemics occur less often causing mortality rates to decline), and the “Age of Degenerative and Man-Made Diseases” (NCDs replace infectious diseases and life

Many elements influence population and its future growth, and thus affect life tables. These include, but are not limited to: birth, death, environment, habits, and socioeconomic status. It is necessary to monitor changes in these factors, especially birth rate and death rate,

There are many reasons for why the diversity in our population changes, and why the entire population changes as well. Some of the factors include the modification and research on our own genetics. Other factors include when statistics about our very own population turn out to be inaccurate. Even the lack of work in order to help provide for families is a contributing factor in all of this. One great impact on the population is when our life spans are just short enough to let the next incoming generation take care of us while we grow old and die out, which contributes to how our population will turn out.

Demographic transitions also can be key component in the death rates we observed over the past 200 years. The curve was influenced greatly over the past 100 years and will be again in the next 100 years. The curves may again change to show_______________________________ in the next 100 years. (cite a

Increased life expectancy and a decreasing birth rate have several implications both negative and positive.

Demographic Transition - the transition to high death and birth rates to low death and birth rates

The natural increase rate is the difference of the CBR and the crude death rate. A high natural increase rate is a representation of how rapidly your population is growing. Although your country has a large death rate, the natural increase rate is still a problem because Somalia has the ninth greatest CBR in the world according to the CIA World Factbook. So, your country does not have enough resources to provide for its population as it is. If the population steadily grows with the current trend, there will be even less resources per person and the situation will become more dire, possibly leading to an even greater CBR to fight infant mortality rates that will come from the lack of supplies. This is obviously a huge problem. On the bright side, all developing countries have experienced similar sequences of high birth rates and high natural increase rates before their rates have dropped. Demographers refer of these sequences of population fluctuations as stages. The first stage is when birth rates and death rates are high and almost equal, the second stage occurs when the death rates decline, and the third stage is when the birth rates follow suit. Certain methods can and have been used to cause the transition between these stages, also known as the demographic transition, to take less time.

Demography is the study of the components of population variation and change. Death rate and birth rate are two determinants of population change. Theory of Demographic Transition is comparatively recent theory that has been accepted by several scholars throughout the world. This theory embraces the observation that all countries in the world go through different stages in the growth of population. A nation's economy and level of development is directly related to that nation's birth and death rates. Population history can be divided into different stages. Some of the scholars have divided it into three and some scholars have divided it into five stages. These stages or classifications demonstrate a

Countries in the world hold different attitudes to the population policy, some of them tend to delay the increase of population while others introduce policies to encourage childbirth. After centuries of continual growth, which started at the first industrial revolution, the global population reached over 7 billion individuals in 2013. Research by Ezeh, Bongaarts and Mberu (2012) states that increasing population is a threat to individuals and societies by bring problems based on unsatisfied demand. The “increasing population” in this essay can be defined as net rising in birth rate during a period, especially in the poor developing countries. This essay will argue that the world cannot sustain an increasing population. The reasons for