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Chain migration refers to the migration of a population, whereas hierarchical migration refers to the migration of a certain segment of a population.
As can be gathered by these factors that influence population growth, community interactions plays a dominate force in population dynamics. The concept of community interactions can be used to encompass such factors as migration, wealth and trade. In other words, each community has specific needs and resources. Based on the available means, or lack of means, humans will interact with other communities in order to satisfy their needs, even if this need is nothing more than selling resources to another community.
Further, as our world continues to become more and more globalized, there continues to be an increasing interaction between the world's communities. Although much of these interactions are beneficial to humanity, in terms of the long-term effects they have on population growth, many can also be viewed as negative interactions. Take for example the many organizations and government programs that are established with the sole purpose of improving the health and lives of poorer nations. Although all of these programs are seen as being noble efforts of humanitarian...
This increase in life expectancy equates to an increase in population growth, which will lead to the numerous previously mentioned unhealthy effects as diminishing resources and increased pollution, to name only a few.
If one is to regulate this type of interaction, one would be in the tough position of arguing again humanitarian aid. For this reason, perhaps the better approach is to promote such programs as conservation and birth control as methods for regulating population growth. Otherwise, if the problem presented by population growth is simply ignored, the effects to our ecosystems, including our natural resources, will be detrimental. This is already being seen with the crisis of global warming, a phenomena at least partially caused by the earth's gradual overcrowding and the increased use of resources and pollution that come with this increase.
Bibliography
Meadows, Donella. (2004): The Limits to Growth: The 30-Year Update. New York: Chelsea Green Publishing.
Nielsen, Ron. (2006): The Little Green Book. New York: Picador.
Steele, Philip. (2004): Population Growth. New York: Smart Apple Media.
Bibliography
Meadows, Donella. (2004): The Limits to Growth: The 30-Year Update. New York: Chelsea Green Publishing.
Nielsen, Ron. (2006): The Little Green Book. New York: Picador.
Steele, Philip. (2004): Population Growth. New York: Smart Apple Media.
Communities that understand the toll population growth has on the environment are more likely to take action to protect the environment and conserve natural resources by monitoring population growth and encouraging restoration of the environment rather than encouraging larger families (Mulligan, 2006). Community actions are more likely to be tolerated than mandates that declare population growth must be limited by force (Mulligan, 2006). Evaluate Effects of Human Activities on Ecosystems
Yet, in the world today there is an even greater fuel shortage, that can create an even greater human catastrophe, as trees create the oxygen that makes it possible to breath. A the urgent need to develop more climate-friendly energy technologies is becoming keenly appreciated worldwide. Renewable energy technologies are receiving heightened attention, and modern biomass-based energy -- the use of wood, crop residues and dung as fuel -- is
Human Population Growth Factors The growth in human population has been steadily increasing throughout most of history, but in the last 200 years it has escalated rapidly. There are numerous factors which account for the growth in human population, however those with the greatest influence include fertility and mortality rates, demographics, production of food, diseases and medical advances, economics, to name but a few. In the United States, the population has
Urbanization Earth also witnessed a phenomenon of urbanization or shifting of population toward cities. The increase in the number of cities has been associated with that of repeated ecological disaster. Rapid regional deforestation, the depletion of ground-water aquifers, accelerated soil erosion, plant genetic simplification, periodic outbreaks of disease among pest species and domesticated animals, large-scale human malnutrition, and the development and spread of epidemics are some of the results we have
The modern separation from the means of production does not negate the fact that nearly everything we need to sustain us is provided by the earth, either by natural or artificial means. The earth gives us all the materials we need and many we desire and in turn she is changed. She becomes less able with each passing day and each lost natural acre to continue to provide. Though the
Author Paul Ehrlich devised the famous equation for evaluating human impact on the environment as a function of three variables: (1) population, (2) affluence, and (3) technology (UWBR, 2004). Much more recently, William Rees, of the Fisheries Center at the University of British Columbia introduced a method for quantifying the specific natural resource demand represented by each person, expressing the results as an ecological "footprint" (UWBR, 2004). Combined with the fact