1. Natural change and Actual Change
Population Dynamics
Natural change and Actual Change

2. Natural Change
A change in the population due to the difference in # of births and the # of deaths.
BIRTHS - DEATHS = NATURAL CHANGE
BIRTHS > DEATHS = NATURAL INCREASE
BIRTHS < DEATHS = NATURAL DECREASE

3. Which Natural Change? 6300 Births 7800 Deaths
Population had a NATURAL DECREASE of 1500 people.
4800 Deaths Births
Population had a NATURAL INCREASE of 700 people.

4. Birth Rate The # of births per 1000 population. Calculation:
# births in one year x
1000 =
Birth Rate
Total Population

5. Death Rate The # of DEATHS per 1000 population. Calculation:
# deaths in one year x
1000 =
Death Rate
Total Population

6. Rate of Natural Increase (RNI)
Difference between the Birth Rate and the Death Rate
Formula:
RNI = BR - DR
Like before:
positive number (+) = naturally increasing population
negative number (-) = naturally decreasing population

7. Sample Exam Question

8. Sample Exam Question WITH Other Distracting Stats!

9. Sample Exam Question

11. Highly Developed Countries: Population, BR & DR
Have a stable population!
Birth Rates are generally low
Death Rates are also generally low.
WHY?

12. Highly Developed Countries – BR: The REASONS!
Birth Rates are generally low because:
Access to birth control
Affordable birth control
Women choosing careers (less kids, no kids, kids later in life)
Lifestyles…leisure, travel, materialistic
Education about family planning
MUST STUDY!!!!!!

13. Highly Developed Countries – DR: The REASONS!
Death Rates are also generally low:
Advances in modern medicine and technology
Access to health care
Affordable health care
Education & knowledge about healthy lifestyles & choices.
Improved water and sanitation!!!!
Better nutrition choices!!!!

14. Underdeveloped Countries: Population, BR & DR
Have an EXPANDING population!
Birth Rates are generally high.
Death Rates are also generally high.
Expanding because births are exceeding deaths at larger rates.
WHY?

15. Underdeveloped Countries
Birth Rates are generally high because:
LITTLE to NO access to birth control
Can’t Afford birth control..(food or birth control??)
Children needed or used to contribute to the family (labor, money, food)
Lack of education about family planning

16. Underdeveloped Countries
Death Rates are also generally HIGH:
Lack of modern medicine and technology
Little or NO access to health care
Unable to afford health care
Lack of education & knowledge about healthy lifestyles & choices.
Lack of clean water and sanitation
Malnutrition

17. Actual Population Change & Migration
Migration means the MOVEMENT of people from place to place.
Immigration is the movement of people INTO a country. ADDS to the receiving countries population.
Emigration is the movement of people OUT of a country…EXIT. TAKES away from the country of departure.

18. Actual Change While Natural Change only deals with births and deaths…
Actual change recognizes ALL factors that can change a population. Births, deaths, Immigration and Emigration.
AC = (B + I) – (D + E)
AC = (Births + Immigration) – (Deaths + Emigration)

19. More on migration!!
NET MIGRATION = the difference between immigration and emigration.
MAP shows countries with +/- Net Migration.

20. More on migration!!
INTERNAL MIGRATION refers to the migration of people within a country province or region.
Newfoundland Labrador in the past 20+ years had been moving to Alberta & Ontario in search of jobs etc. OR
Newfoundland Labrador experiences a fair degree of internal migration as people move from smaller outports to St. John's.

21. Sample MC Question