The document discusses the demographic transition model (DTM), which predicts population growth over time based on changes in birth rates and death rates. The DTM has five stages:
1) Birth and death rates are high due to disease and lack of healthcare. No countries are in this stage today.
2) Death rates begin to decline due to improved sanitation and healthcare, while birth rates remain high. Countries like Afghanistan and Bhutan are in this stage.
3) Both birth and death rates fall as living standards rise and family planning is adopted, leading to rapid population growth. India and Bangladesh are in stage three.
4) Birth and death rates level off and become balanced as development is complete. Countries
This theory throws light on changes in birth and death rate and consequently on the growth rate of population. The relationship between birth and death rate changes with economic development and a country has to pass through different stages of population growth. This theory depicts the four stages of demographic transition that a country has to pass.
A Brief Discussion on demographic transition theory.Rizwan Khan
Demographic transition (DT) refers to the transition from high birth and death rates to lower birth and death rates as a country or region develops from a pre-industrial to an industrialized economic system.
IT IS GIVEN BY: FrankW. Notestein. Frank Wallace Notestein (August 16, 1902 – February 19, 1983)
The demographic transition theory is a generalized description of the changing pattern of mortality, fertility and growth rates as societies move from one demographic regime to another.
This theory throws light on changes in birth and death rate and consequently on the growth rate of population. The relationship between birth and death rate changes with economic development and a country has to pass through different stages of population growth. This theory depicts the four stages of demographic transition that a country has to pass.
A Brief Discussion on demographic transition theory.Rizwan Khan
Demographic transition (DT) refers to the transition from high birth and death rates to lower birth and death rates as a country or region develops from a pre-industrial to an industrialized economic system.
IT IS GIVEN BY: FrankW. Notestein. Frank Wallace Notestein (August 16, 1902 – February 19, 1983)
The demographic transition theory is a generalized description of the changing pattern of mortality, fertility and growth rates as societies move from one demographic regime to another.
Causes and Consequences of Rapid Population GrowthUnica Chiara
Well, I'm not used of using too much words in my slides instead I used more pictures for clearer representation and just its title. I just emphasize those important details. And I hope this could help you out! Good luck! :)
What id demographic transition model? How is it from one stage to another stage.what condition has our country in demographic transition model? reason behind the varying birthrate and death rate.
Causes and Consequences of Rapid Population GrowthUnica Chiara
Well, I'm not used of using too much words in my slides instead I used more pictures for clearer representation and just its title. I just emphasize those important details. And I hope this could help you out! Good luck! :)
What id demographic transition model? How is it from one stage to another stage.what condition has our country in demographic transition model? reason behind the varying birthrate and death rate.
These comprehensive slides on demography provide a deep understanding of the science of population dynamics. Covering essential concepts, methodologies, and key demographic indicators, these notes offer insights into the study of population growth, distribution, and composition. Explore topics such as fertility, mortality, migration, and population projections, as well as their implications for society and policy. With this resource, you'll gain a strong foundation in demography, making it an invaluable reference for students, researchers, and anyone interested in the dynamics of human populations.
Demographic Transition
theories of population
Ms. LYDIA EVELYN.F
MSC NURSING I YEAR
GENERAL OBJECIVE
At the end of the seminar students will be able to gain adequate knowledge on the topic demographic transition and theories of population
SPECIFIC OBJECTIVE
Student will be able to
Define demographic transition’
List and explain the demographic stages
Interpret the demographic transition model
Appraise and compare the population pyramid along with the stages
Explain the historical studies
Critique the evaluation
Explain second demographic transition
Enumerate future population trends
List and explain each theories of population in detail
INTRODUCTION
Historical shift from high birth rates and high death rates in Societies with minimal technology, Education ( women) and economic development TO Low birth rates and low death rates in societies with advanced technology, Education and Economic development And the stages between these two scenarios.
Scholars debate
whether industrialization and higher Income lead to lower population,
OR
whether lower populations lead to industrialization and higher Incomes ?
Definition
WARREN C. Thompson, Frank w Notestein.
A historical process of change which accounts the trends in births, death and population growth occurred in today's industrialized societies, especially European societies.
Definition by Dolan
“Demographic transition refers to a population cycle that begins with a fall in death rate, continues with a phase of Rapid population growth and concludes with a decline in birth rate”
DEMOGRAPHIC STAGES
STAGE ONE
Pre- Industrial society, death rates and birth rates were both high
These rates fluctuated rapidly according to natural events such as
Drought
Diseases
to produce a relatively constant and young population.
Family planning and contraception were virtually non-existent.
Death rates matched birth rates exceeding 40 per 1000 per year
Children contributed to the economy of the household from an early age by carrying water, firewood and messages, carrying for younger siblings, sweeping washing dishes, preparing food and working infields.
There was no much education or entertainment expenses.
Thus the total cost of raising children barely exceeded the contribution to the household.
During this stage, the society evolve in accordance with Malthusian paradigm - with Population essentially determined by the food supply.
Eg: - Any fluctuations in food supply tend to translate directly into population fluctuations
EG: - Famines - Resulting In significant mortality which are frequent.
According to Edward, Revocatus ( 2016) - This is the earlier stage of demographic transition in the world
which is characterized by primary activities such as small fishing activities, farming pastoralizing and petty businesses.
STAGE TWO :
Leads to fall in d
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2. QUIZ …
1. What do we call the difference between the birth rate and the
death rate?
2. What is the main reason that the death rate has dropped over
time?
3. Name 3 reasons that the birth rate is high in less developed
countries.
4. What do we call the death of babies before they are 1?
5. What is the current death rate in NZ?
3. TIME TO LEARN ABOUT A NEW MODEL
TO PREDICT POPULATION GROWTH!
• When we talk about a model in Geography, we are talking about
a visual way of predicting how something might happen based on
what has happened in other places
• The DEMOGRAPHIC TRANSITION MODEL or DTM shows
population change over time.
• The DTM studies how changes in the birth rate and death rate
can affect the total population of the country and the way a
population
• This model is based on what happened in Europe and North
America from when people were first living there to today
• This means developed countries can generally be found in the
later stages of the model and less developed countries are still in
the earlier stages of the model as they started developing later.
6. STAGE ONE:
• At this stage the population is not growing and the number of
people is small. This is because the birth rate and death rates
are both high.
WHY WOULD BOTH BIRTH RATES AND DEATH RATES BE
HIGH?
• No country is still in Stage 1. Remote tribes in the rainforests in
the Amazon or in a remote area in Laos may be the only example
of a group of people who fit this stage
7. REASONS FOR BIRTH AND DEATH RATE
Birth Rate is high
because of:
• Lack of family planning
• High Infant Mortality Rate:
putting babies in the 'bank'
• Need for workers in
agriculture
• Religious beliefs
• Children as economic assets
Death Rate is high
because of:
• High levels of disease
• Famine
• Lack of clean water and
sanitation
• Lack of health care
• War
• Competition for food from
predators such as rats
• Lack of educationNo country is currently
in this stage.
9. STAGE TWO
• Here the number of people are starting to grow as the death
rates start to fall but the birth rates remain quite high.
WHY WOULD THE DEATH RATE FALL AND THE BIRTH RATE
STAY THE SAME?
• Countries in this stage of the DTM include Afghanistan, Bhutan
and Laos
10. REASONS FOR DECREASING DEATH RATE
Reasons for declining death rate
•Improved health care (e.g. Smallpox Vaccine)
•Improved Hygiene (Water for drinking boiled)
•Improved sanitation
•Improved food production and storage
•Improved transport for food
•Decreased Infant Mortality Rates
Typical of Britain in 19th century;
Bangladesh; Nigeria
12. STAGE THREE
• At this stage the population is growing very rapidly but the gap
between the birth and the death rates is starting to become
narrower.
• At this stage the NATURAL INCREASE is HIGH
WHY WOULD THE BIRTH RATE STARTED TO HAVE
DROPPED?
• Countries in this stage of the DTM include INDIA, Malaysia and
Bangladesh
13. REASONS FOR DECLINING DEATH AND BIRTH
RATE
Reasons behind birth and death rate falling:
• Family planning available
• Lower Infant Mortality Rate
• Increased mechanization reduces need for workers
• Increased standard of living
• Changing status of women
15. STAGE FOUR
• In Stage 4, the total population is high but it is no longer growing
very quickly. This is because the birth rate and death rate are
balanced as both are now low.
WHY HAVE BOTH THE BIRTH AND DEATH RATES LEVELLED
OFF?
• Countries in this stage are usually developed. NZ, China and
Singapore would be located in this stage.
17. STAGE 5?
• This stage would occur in countries
where the number of babies born (birth
rate) is less than the number of people
dying (death rate).
• We call this being below
REPLACEMENT level, as in, there are
not enough babies born to replace the
old people dying
• Countries reaching this stage are likely
to be Japan and Germany
• This could mean that their total
population numbers may start to
DECLINE in the future
18. REASONS FOR CHANGES
Reasons for changes in birth
rate:
• Family planning
• Better health
• Later marriages
• Improved status of women
Reasons for
changes in death
rate:
• Good health care
• Reliable food supply
• People are generally living
longer
• Birth Rate slight fall.
• Death Rate stable.
• Natural increase: gentle
decrease
Typical of Germany
19.
20. WHAT ARE THE LIMITATIONS?
• It does not include the number of people migrating
• It assumes that all countries will go through the same process of
development, development will not happen equally and at the
same rates for each country
• There is no time scale
• Reasons for birth rates and death rates changing can be for very
different reasons in different countries
21. CAN YOU ANSWER THESE
QUESTIONS?
1. At which stage is the death rate the highest?
2. At which stage is the natural increase the highest?
3. At which stage is there a natural decrease?
4. At which stage is population growth the highest?
22. CAN YOU TELL HOW DEVELOPED A
COUNTRY IS BY LOOKING AT THE DTM?
• As a country passes through the demographic transition model,
the total population rises.
• Most developing countries are at stage 2 or 3 (with a growing
population and a HIGH natural increase). Most developed
countries are now at stage four.
23. A QUICK CLIP TO RECAP AND SOME
SILLINESS…
A quick recap…..
• https://www.youtube.com/watch?v=nonCD5GR9bw
Some silliness…
• https://www.youtube.com/watch?v=pzxREH08EkI
24. EXTRA FOR EXPERTS: BIRTH
RATE, DEATH RATE AND
NATURAL INCREASE
• DESCRIBE the progression of the birth rate and death rate of a
country as it moves through the stages and EXPLAIN how this
links to natural increase