Chapter 2 Flashcards
How many portions can the world be divided into?
The world can be divided into seven portions, each containing approximately 1 billion people.
Great geographic variation
Population Cartogram
depicts the size of countries according to population rather than land area(physical size)
Explain reasons for the distribution of the world’s peoples?
People are not evenly spread throughout the world
They tend to inhabit places with low lying areas with temperate climate and soil suitable for agriculture
Areas that are desert, extremely cold tend to be sparsely populated
Population Clusters (where does population cluster)
Two-thirds of the world’s inhabitants live in four regions—East Asia, South Asia, Southeast Asia, and Europe
1/4 live in east asia- china
600 million in southeast asia
1/4 in south asia
ecumene
The proportion of earths surface occupied by permanent human settlement
This is important because its tells how
much of the land has been built upon and how much land is left for us to build on.
List the three types of density used in population geography
Arithmetic Density
Physiological Density
Agricultural Density
Population density
is the number of humans living within a area
Number of ppl divided by area of land
describe Arithmetic Density: give limitations and benefits
the total number of people divided by the total land area
Crude measure- simple measure
Limitations is it doesn’t distinguish between land in an area- some of which may be useful
Assumes ppl are Evenly spread throughout the land
It enables geographers to compare the number of people living on a given piece of land in different regions of the world
It answers the “where” question
Give examples of a countries arithmetic density?
Canada is the second largest country in world- small population huge land area - small arithmetic density
Japan has high arithmetic density bc they have large population living on small area
Physiological Density
the number of people supported by a unit area of arable(farm land) land
Population/ farm land
Takes into account how much of land can be used for agriculture and gives indication of pressure on resources
arable land
land good for agriculture
Why would Egypt have such a striking difference between physiological density and arithmetic density?
Only the Nile River Valley and delta have enough moisture for intensive agriculture and about 95 percent of Egyptians live in this region
Puts enormous pressure on this land
Agricultural Density
the ratio of the number of farmers to the amount of arable land
Sophisticated technology can allow vast increases in crop yields with fewer people
Countries that are more developed are able to have more sophisticated technology that allows them to produce more crop with fewer ppl- lower agricultural density
Less developed countries will have higher agriculture density
What are the 3 ways to measure population change in a country or the world?
natural rate of increase (NRI)
crude death rate (CDR)
crude birth rate (CBR)
census
a complete enumeration of a population
United States conducts the census every 10 years
Canada conducts the census every 5 years (years ending in 1 and 6 years)
Last was in 2016 and 2021
Very expensive to run a census that’s why we don’t do it every year
Vital stats
info that is updated every time there’s birth death and that info is used to update info in census between those 5 years
natural rate of increase (NRI)
natural increase rate (NIR) or Rate of Natural Increase (RNI)
the percentage by which a population grows in a year
CBR-CDR = NIR
- Excludes migration
is tells us how much the population is increasing (or decreasing) each year
ranges from about 0 – 3.5% for most countries around the world
What is natural rate of increase (NRI) currently?
1.1
Means growing slowly
crude birth rate (CBR)
is the total number of live births in a year for every 1,000 people
Called crude bc the denominator is not limited to women or women bearing children it includes everyone (men elderly ppl)
This is bc its simple easy to gather data
The world map of CBRs mirrors the distribution of RNI
more developed countries have lower CBR and less developed
births in a year/ populations at mid year x 1,000
What is CBR currently
20
means 20 for every 1000 ppl alive
crude death rate (CDR)
is the total number of deaths in a year for every 1,000 people
The CDR does not follow the same regional pattern as the CBR
The average CDR difference between developing and developed countries is very small
A poor measure of mortality in some respects (not sensitive to age structure, gender, education etc)
CDR does not tell us quality of life in a country but gives indication that its because of a aging population
No country has higher than 20 per 1000
CDR= deaths in a year/ mid year population x 1,000
Why is the the average CDR difference between developing and developed countries small?
Less developed countries will have relatively low CDR and more developed countries will have high CDR
8 per 1000 in less developed countries, 10 per 1000 in more developed countries
If a country has more aged ppl the CDR will increase
In Canada it will increase bc baby boomers will begin to die
High CDR in less developed countries doesn’t mean aging population but bc of disease, poor resources
What is the world crude death rate?
9/1,000
Doubling time
is the number of years needed to double a population, assuming a constant rate of natural increase
Affected by CBR and CDR
currently 62 years
i
The developed countries have accounted for a very small percentage of the RNI since 1980
Small families in more developed countries= low CBR
About 2/3 of all population growth since 1980 has been is Asia
The 18th century market the beginning of rapid population increase for the world
The Demographic Transition
a model describing population change over time
Birth rates
Death rates
Population change
4 stages (5?)
model captures the change in birth rates, death rates, and natural growth rates over the course of British industrialization (200 years ago)
Applies to group of countries rather than individual countries
Explain the stages of the Demographic Transition
Stage 1: Low Growth
- Death rate fluctuates bc of disease poor sanitation
- no country rn is in stage 1
- Very high CBR and CDR low NIR
Stage 2: High Growth
- Dramatic drop in stage 2 of CDR
- Improvement in food distribution, sanitation and hygiene, medical advancements, political stability
- Birth rate is high in stage 2
- Takes individuals a little bit of time they don’t need to have lots of time
- RNI- is high meaning population is booming
- high CBR rapidly declining CDR very high NIR
Stage 3: Moderate Growth
- increase urbanization, women working, smaller families living in cities
- RNI declining means its less that stage 2
rapidly declining CBR. moderately declining CDR moderate NIR
Stage 4: Low Growth or Stationary
- on average birth rate is still higher than death rate
- We don’t see much variation between death rate today
- Birth rate usually
- very Low CBR, low slightly increasing CDR
- 0 or negative NIR
Examples of countries that are in each stage of the demographic transition
- Gambia, saudi arabia, pakistan, kenya. Guatemala
- Mexico, India, algeria, Indonesia
- Denmark, Canada, China, USA,Germany
How many babies go missing every year in China and india
Around 700,000 female babies are “missing” every year in China and India, as a result of gender-based sex selection
sex ratio
is the standard biological measure of male to female babies that are born
Average sex ratio at birth is 105 male babies for every 100 female babies
51% chance of having a boy and 49 % chance of a girl
Explain health risks faced by baby girls
The high sex ratios of China and India can be used to calculate the probable percent of “missing” baby girls
The United Nations concludes that the “root cause” of sex selection is gender inequality
Almost 120 million females have gone missing in Asia
Pregnancy was terminated, baby girl was killed
What are the sex ratios in India and china
India’s sex ratio is 111 boys / 100 girls, and as high as 123 boys in some states
Dowries in India- girls seen as burden
China’s sex ratio as 115 boys / 100 girls, and as high as 160 boys in rural areas for 2nd births
One child policy
Both countries have a strong cultural preference for male children