Introduction to rural sociology 101 Lecture 6 population growth and characteristic
1. Population growth
Population of any country is its human resources and its
most important factor of production.
Population growth: It is the change in population number
whether positive or negative.
It is a result of the interaction between three important
variables:( Birth, Death and Migration)
Population growth
=Natural increase + Net migration
= (Birth – Death ) + ( In migration – out migration )
2. The estimate of population in Jan 2017 was
about 92.1 million (inside Egypt) using the
Natural Increase method (the
difference between Birth and Deaths).
As shown in the following tables (Statistical
Yearbook – Population)
6. What is birth rate?
It is the addition of new individuals to
the population.
What is crude birth rate?
Is the number of enfant per 100/
1000 of inhabitants annually.
7. How to calculate crude birth
rate?
Number of birth in a year
CBR= X1000
mid year population in the same year
8. What is General Fertility Rate
(GFR(?
It refers to the number of children born to a
constant number of women(Age of pregnancy)
in a year
How to calculate General Fertility Rate(GFR(?
Total number of birth in year x X 1000
Women aged 15-44 in year x
9. Age Specific Fertility Rate
(ASFR(
Is the number of birth annually per 1000
women of a specific age
Number of Birth in year to women aged x to (x+5(
ASFR=
X1000
Total women aged x (x+5(
13. A death rate is calculated by dividing the
number of deaths in a population in a year by
the midyear resident population
An infant mortality rate is based on period
files calculated by dividing the number of infant
deaths during a calendar year by the number of
live births reported in the same year.
Death Rate:
14. A Maternal mortality rate is a measure of
the likelihood that a pregnant woman will die
from maternal causes
Life span:
life span refers to how long a person can
possibly live.
15. Crude death rate
CDR is the total number of deaths in a year
divide by the average total population, as
CDR= ((total death in year) / (average total
population in that year)) x 1000
Age/ sex specific death rate
ASDR = (( number of deaths in a year of people
aged x to x +5) / ( average number of people in
that year aged x to x + 5))
Calculations of death rate:
16. Population movements
Human population is not scattered evenly over the
earth.
Migration:
The movement of people from one place to another
across the national/ external border
(In migration / out migration ) more than one year.
17. Push factors of migration
1. Overpopulation.
2. Religious persecution.
3. Lack of job opportunities.
4. Agriculture decline.
5. Conflict.
6. Political persecution.
7. Natural hazards- droughts, Floods, Famines,
Volcanic eruption
8. Limits of personal freedom
18. Pull factors of migration
1. Religious freedom.
2. Economic opportunity.
3. Land availability.
4. Political freedom.
5. Ethnic and family ties.
19. Impacts of migration on regions:
1. Language - multiple languages.
2. Religious freedom.
3. Customs/ traditions – exchanged.
4. Cultural diffusion.
5. Age categories.
21. Definition of populationDefinition of population
structurestructure
structurestructure is something that is built oris something that is built or
constructed.constructed.
In social science it refers more broadly to aIn social science it refers more broadly to a
pattern of interrelationships among parts of apattern of interrelationships among parts of a
society.society.
Population structurePopulation structure refers to the basicrefers to the basic
demographic characteristics by which thedemographic characteristics by which the
population may be divided or described.population may be divided or described.
22. Demographic characteristics are important
clues to the social and economic life of a
society.
They are important to the study of population
because they are often closely associated with
population processes, both influencing and
being influenced by fertility as well as mortality
and migration.
Differences in characteristics, such as
education, occupation,income,marital
status,race and ethnicity, religion and
settlement reflect variations on the life chances
23. Characteristics of Population
This includesThis includes
age,age,
sex,sex,
education,education,
Occupation,Occupation,
income,income,
settlement,settlement,
race or ethnic andrace or ethnic and
marital status etc.marital status etc.
24. The age/sex structure
The age/sex structure of a population is
actually one of the most important forces of
social change.
A high birth rate means; that 6 years from
now there will be more kids entering school
than before; that 18 years from now there
will be more new job hopefuls and college
freshmen than before, etc.
25. The age/sex structure
in general, a population with more than aboutin general, a population with more than about
35% of its people under age 15 is35% of its people under age 15 is ““youngyoung””,,
and a population with more than about 10% ofand a population with more than about 10% of
its people aged 65 or older can be consideredits people aged 65 or older can be considered
““oldold””..
26. There are 3 major ways in which we canThere are 3 major ways in which we can
graphically or statistically quantify thegraphically or statistically quantify the
age structureage structure..
constructing a population pyramid.constructing a population pyramid.
calculating the average age of acalculating the average age of a
population,.population,.
calculating the dependency ratio.calculating the dependency ratio.
27. what is a population pyramidwhat is a population pyramid??
population pyramid or age/sex pyramid is apopulation pyramid or age/sex pyramid is a
graphic representation of the distribution of agraphic representation of the distribution of a
population by age and sex categories.population by age and sex categories.
it is a device that allows us to look at theit is a device that allows us to look at the
percentage of population which is in eachpercentage of population which is in each
age-sex category.age-sex category.
it is called a pyramid because theit is called a pyramid because the ““classicclassic””
picture is ofpicture is of a high DR in combinationa high DR in combination
with highwith high BRBR which characterized most ofwhich characterized most of
the world until recent times.the world until recent times.
28. How the population pyramid isHow the population pyramid is
plottedplotted
Ages are marked off on the Y-axis; maleAges are marked off on the Y-axis; male
population totals (in absolute numbers orpopulation totals (in absolute numbers or
percentages of the total population of bothpercentages of the total population of both
sexes) for various age groups are shown onsexes) for various age groups are shown on
the negative side of the X-axis and femalethe negative side of the X-axis and female
population totals are shown on the positivepopulation totals are shown on the positive
side of the same axis.side of the same axis.
Population pyramid can be drawn by takingPopulation pyramid can be drawn by taking
age data in single years, in 5-year ageage data in single years, in 5-year age
groups, or in any other age interval.groups, or in any other age interval.
31. Dependency ratioDependency ratio
The dependency ratio is a useful indicator of the burdenThe dependency ratio is a useful indicator of the burden
that some age structures place on a population.that some age structures place on a population.
The proportion of the children below 15 years, and olderThe proportion of the children below 15 years, and older
people 65 plus are two unproductive consumer categories-people 65 plus are two unproductive consumer categories-
thus called dependent population.thus called dependent population.
DependencyDependency
Ratio =Ratio =
Number of dependant populationNumber of dependant population
X10X10
00
Number of economically activeNumber of economically active
populationpopulation
32. Measuring the sex structureMeasuring the sex structure
It is a common assumption that thereIt is a common assumption that there
are the numbers of males and femalesare the numbers of males and females
at each ageat each age –– actually this is not theactually this is not the
case.case.
Population processes operatePopulation processes operate
differently to create inequalities in thedifferently to create inequalities in the
ratio of males to females (known asratio of males to females (known as sexsex
ratioratio).). Total male populationTotal male population
Sex Ratio =Sex Ratio = x 100x 100
Total female populationTotal female population
33.
34. The Educational Status
becoming educated is probably the most
dramatic and significant change that you can
introduce into your life.
education became an important factor for
determining social status and economic
development.
higher education status is associated with
greater occupational prestige.
it affects generally negatively fertility and
death rates.
35. The main categories of educational
status in Egypt are:
Illiterate
Read and Write
Removed His/Her Illiteracy
Qualifications Less Than College
Primary (below intermediate)
Preparatory (above intermediate)
Secondary and High Technical Secondary
University Graduate and Above
36. The Occupational Status
Occupation is an important characteristic
because it is one of the most defining aspects
of a person’s or society’s identity.
it is a clue to education, income, and
residence, life style.
it is an indicator of social status, pointing to a
person’s position in the societal hierarchy.
Women have been increasing their levels of
income, labor force participation, and
occupational status relative to men, and this is
certainly related to declining levels of fertility.
37. The main categories of
occupations in Egypt:
First:
Employed
Unemployed
Second:
Different Categories
38. income
in general,varying levels of education and
occupation within society groups determine the
income distributions in that society.
the better educated you are the more money you
expect to earn in your life,and the more
prestigious job you have the more paying you
expect to receive.
39. Marital status
in rural areas we find that the percentage of
married people is higher, while percentage of
singles is higher in urban areas.
40. The main categories of Marital
Status in Egypt are:
SINGLE
MARRIED
MARRIAGE CONTRACT
WIDOWED
DIVORCED
41. Ethnicity and religion
-ethnic groups in a society –at least some of the
societies- reflect variations in the population
characteristics.
-for example; minority groups members in USA,to the
extent that they have less education,lower levels of
occupational prestige, and lower income, also tend
to have higher fertility.
-religiosity seems to play a factor in fertility. It may
slow down the adoption of modern low fertility
attitudes.
42. Settlement (rural or urban(
-any society is classified into urban and rural.
-the urban society is further divided into large cities,
small cities etc.
- unlike rural area urban areas is characterized by
high population density( the number of people per
unit area), and industrial occupations.
-the main occupation in rural areas is agriculture.
-both rural and urban areas have their characteristic
social systems.
43. Settlement (rural or urban(
The main categories of Settlement in
Egypt:
1. URBAN
2. RURAL
44.
45. Major Population Problems In
Developing countries
1. High annual population growth rate (Why?)
2. Mal distribution of population:
a) Geographically
b) Age categories
c) Sex distribution
d) Education and other socio-economic
characteristics
3. Imbalance between population number and
resources
46. 4. Low demographic characteristics (loss and high
investment costs)
a. Life expectancy at birth
b. High illiteracy rate
c. High unemployment (economic efficiency)
d. Low labor morals and skills