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The American birthrate is at a record low. What happens when having it all means not having children?
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Learn more: http://www.khanacademy.org/video?v=r1ywppAJ1xs Thomas Malthus's views on population. Malthusian limits.
This is a succinct (but not perfect) summary of Malthusian ideas on population. What do you think of his ideas? Any specific parts of his theory that you agree with? Do you disagree with some of his ideas? What did history have to say about it?
Tags: Demographics, population, models, APHG, unit 2 population.
Als wetenschapshistoricus die is afgestudeerd op vroege evolutietheorieen (voor Darwin) één van mijn favorieten!
Malthus is still very relevant.
We will be learning about Malthus in Chapter 2. Take a sneek peek!
"Many of the original and innovative contributions to the field of urban sociology came out of the University of Chicago in the early 20th Century. Influenced by the natural sciences, in particular evolutionary biology, members of the Chicago School forwarded an ecological approach to sociology emphasizing the interaction between human behavior, social structures and the built environment. In their view, competition over scarce resources, particularly land, led to the spatial differentiation of urban areas into zones of similar use and similar social groups.
Two of the major proponents of urban ecology were Ernest Burgess and Robert E. Park, professors at the University of Chicago, who together in 1925 published a book entitled The City."
Many students struggle with models when there isn't a corresponding example. The Concentric Zone Model and Chicago are a great marriage.
Central Places:Theory and Applications produced by Ken Keller (firstname.lastname@example.org) adapted from Don Ziegler.
The Central Place Theory is a model that is not used much today in academic geography, but given it's explicitly spatial nature, it is used in many geography curricula (including AP Human Geography) to show systems thinking and spatial patterns. This powerpoint goes over the main ideas of the theory developed by Walter Christaller as well as some examples.
Tags: APHG, models, spatial.
Another way to think about Central Place.
It was just over two centuries ago that the global population was 1 billion — in 1804. But better medicine and improved agriculture resulted in higher life expectancy for children, dramatically increasing the world population, especially in the West.
This is an excellent video for population and demographic units, but also for showing regional and spatial patterns within the global dataset (since terms like 'overpopulation' and 'carrying capacity' inherently have different meanings in distinct place and when analyzed at various scales). It is also a fantastic way to visualize population data and explain the ideas that are foundational for the Demographic Transition Model.
Tags: population, scale, visualization, Demographics, models, unit 2 population, sustainability, regions, spatial.
"This article is very informative as to why our world population continues to grow and grow tremendously. It continues to grow because of all the advances in medicine and better agriculture. Population grew from 1 billion in 1804 to 7 billion over two hundred years. It just all depends on how we conserve our food,water,and energy. "
After watching this short clip, it puts the popluation into perspective. I never knew how quickly the populaiton could grow and this video is a pure example of how it does. Over population is going to be a major problem in the future.