Population Growth Essay

exponential population growth represents the population increase under an ideal condition, resulting in a J-shaped growth curve plotted over time. It is different from the S-shape that the logistic population growth illustrates. On the contrary, with the limitations of food supply, predators and other environmental factors, the logistic population growth model modifies the changes of the growth rate as the population size reaches the carrying capacity, which is symbolized by K, meaning the maximum population size that a particular environment is able to maintain (Campbell and Reece 2011). The per capita rate of increase is the difference between the per capita birth rate, “the number of offspring produced per unit time by an average member of population”, and the per capita death rate, the number of deaths per individual per unit time (Campbell and Reece 2011). It implies the population will increase as the per capita rate of increase, r, is larger than zero, which in turn, shows that a negative r will lead to the decrease of the population. Unlike in the logistic population growth, the per capita rate of increase goes to zero while it is at the carrying capacity, the per capita rate of increase is maximized for the exponential population…

Population is defined as the total number of people which inhabit a specific area. For example, the population of the Earth is roughly 7 billion and the population of Australia is about 24 million. This number is steadily rising due to population growth. Every year, 135 million people are born and 55 million people die, which leads to the adding of 80 million people to our global population annually. The rate at which the population of a country increases compared to the initial population is…

the earth has seen an astonishingly dramatic increase in the human population on earth. Humans have been on this planet for an estimated three million years and we have grown to a current population of approximately seven billion. Environmental scientists question the limits of the earth and how long many people it can accommodate before too much of a toll is taken and the population can no longer be sustained by the resources we have on earth. For thousands of years, the hunter and gatherer…

Population growth is a large contributor to environmental depletion, as there is a larger effects of food sources, and more pollution created. It is clear that populations and negative impacts on the environment are increasing at record rates, but for what reasons are populations multiplying so rapidly, especially in countries with low fertility rates? Although population growth is a phenomenon occurring globally, this essay will address this question by focusing in on a smaller scale, within…

China 's efforts to control population growth has led to many issues. The government 's One Child Policy was the cause of the many issues within the population such as decline in birth rates, unequal sex ratios, gender imbalance, and population growth. In China’s efforts to control population growth, sex selective abortion cases have increased. Consider the 2011 murder of a seven month old baby. In Beijing, a woman was seven months pregnant with her second child when several people entered her…

I have been with Simcity4 for a period of one year and it is unbelievable how fast time goes by especially when you are trying to accomplish the people’s business. It is my pleasure to report to you that my team and I have been engaged at all levels with city leaders and community members in an effort to move this city forward in a positive way. One obvious thing that I have noticed in the past one year is that this city has seen a sharp increase in its population growth. Some of the growth can…

Though still a modestly sized population, the rate of Vancouver’s population growth has greatly surpassed Canada’s national population growth of 5.9%. Vancouver’s population growth has increased by 9.5% from 2006 to 2011, a big factor being immigrants. There is an aging population, which takes place when the median age of a certain region increases substantially due to declining birth rates or rising life expectancy. It can be predicted that this population growth will allow for more…

Population Growth Lab Populations of different species interact with their environment in a myriad of ways. This may also impact the population, especially concerning its size. The question trying to be answered was how changes in the amount and nature of the plant life available in an ecosystem does, in fact, influence herbivore population growth over time. Answering this question will determine which environmental factor has the greatest impact on the population growth of herbivores. In this…

Paramecium population in the lab (graph a) appears to have a logistical population growth. Visually, the data and trend line of the graph create an S-shaped curve, which is the shape of a logistical population growth. A logistical population growth is a population growth that initially occurs at a constant rate of increase over time, but then levels out as the carrying capacity of the environment is approached. For 10 days the population increases at a steady rate. However, after day 10 the rate…

I believe China has a huge problem and it stems from their countries enormous population and it is related to the population growth. Ironically, their issue isn’t how fast the population is reproducing. The issue is they are struggling is that don’t have enough people to replace their baby boomers. The reason China is facing this struggle is for 2 reasons the first is that the implemented a one child policy per a family because, the Chinese government was concerned about the rate of population…