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Population Geography
Carrying CapacityFertility RatePush-pull factorRate of Natural IncreaseDeath RatePopulation DistributionZero Population GrowthPopulation PyramidBirthratePopulation Density
?????????????????????????*Is the population of Texas growing or decreasing?*Where do people live in Texas?*What is the average age of people in yourState?Why do we need to know this???
What are some other questions about population a geographer might ask?
Why??????
Demographics Population densityReplacement Rate Population distributionFertility Rate 1492- 450 millionDeveloped countries 1850- 1 billionDeveloping countries 1945- 2 billionThomas Malthus 1965- 3 billionCarrying capacity 1978- 4 billionHunger 1989- 5 billionExponential growth 1999- 6 billionPandemic 2011- 7 billionBlack Death(Bubonic Plague) infant mortalityIndustrial Revolution natural rate of increaseQuality of life zero population growthBirth rate Top 5 countries in populationDeathrate
Geographers study the relationships betweenpopulations and their environment.
Notice a familiartheme????
MAPS
They use…..
TEXAS
GRAPHS
Spatial PerspectiveWhere is everybody?
Why????
Graph Review:*What type of graph would be best to show change over time?
*What type of graph would be best to show a comparison?
Demography
The statistical study of humanpopulations.
Demographics
Statistics (information in number form)about human populations.
How can studyingdemographic
statistics be useful?
School AdministratorTaco Bell ManagerPoliticianAdvertising Executive
Population Density
Average # of people per square mile.
In the United States we have about 300 million people and 3,717,792
square miles.
What is our population density?
About 81 people per square mile
Canada’s population is about 32 million and they have 3,851,788
square miles. What is Canada’s population density?
About 8 people per square mile
Monaco is a microstate in Europe on the Mediterranean coast borderingFrance and Spain. It’s population is about33,000 and it has .75 square miles.What is Monaco’s population density?
About 44,000 per square mile!
Egypt has a population density of 180 people per square mile, but since 90% of the country is desert, most people livealong the Nile River.
So, what does population densityactually tell us?
Can you think of a different way to figurethe population density of a country?
An AVERAGE!!!
What does it allow us to infer???
Arable land: Land that can be farmed.
Measured in arable land, Egypt’s population density isabout 9,000 per square mile.
Population Distribution
*90% of the world’s people live in the Northern Hemisphere.*2/3 of those people live between 20’-60’ North (what latitude region???)*many live in low-lying areas, particularly along fertile river valleys near the edges ofcontinents
POPULATION IS NOTEVENLY DISTRIBUTED!
TRENDS IN WORLD POPULATION..
Culture hearth: A place in whichimportant ideas begin and thereafter spread to surrounding cultures.
Ancient examples:
*Mesopotamia (Fertile Crescent)
*Egypt
*China
*Olmec, Teotihuacan, Maya
*Indus River Valley
*Where are these places?*What is it like there?
*What is the population density today?
Draw a conclusion from this information.
Make an observation
Population ChangeVocabulary
Birthrate Death rateMigration emigrantsImmigrants refugeesPush/pull factors rate of natural Zero population increasegrowth
Let’s review!
1. What is the statistical study of human populations?2. Why do people study population geography? How is it applied in the “real” world?3. What three things does population density reflect about a country?4. Why is the world’s population so unevenly distributed?5. What terms are associated with population change?
Where is Bangladesh????
