Chapter 7-8 Population Flashcards
Write and know the basic equation for CALCULATING POPULATION CHANGE
Total Population/Original Population?
Explain how populations are Dynamic as opposed to static
Dynamic- is data that changes. Population obviously changes
Static - data that doesn’t change
Density Dependent population control
VS.
Density Independent population control
Dependent -Depends on amount of population have a GREATER effect as population RISES
- Spread of Disease
- Predation
- competition for resources
Independent -Affect population size. Does not matter on Population
- Floods
- drought
- Fires
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ZPG stands for?
Zero Population Growth
-#Births + #immigration = #Deaths+#Emigration
what is Crude Birthrate and what makes it ‘crude’
Births per 1000 people per year
CALCULATION: # of births / Total population x 1000
what is the Crude Death rate and what makes it ‘crude’
Deaths per 1000 people
CALCULATION: # of Deaths/ Total Pop. x 1000
Calculate annual rate of population change
- Globally: Birth 22, Death 9
- Africa: Birth 25, Death 14
- Latin America: Birth 24, Death 6
- Oceania: Birth 18, Death 7
- U.S: Birth 15, Death 9
- Europe: Birth 10, Death 11
- Globally: Birth 22, Death 9 = .013
- Africa: Birth 25, Death 14 = .011
- Latin America: Birth 24, Death 6 =.018
- Oceania: Birth 18, Death 7 = .011
- U.S: Birth 15, Death 9 =.006
- Europe: Birth 10, Death 11 .001
Determine the rate of population change Starts: 1 million Births: 1675 Deaths: 450 Immigrants: 325 Emigrants: 150
s
1675 + 325 -150 -450
——————————- x 1,000 =1.4%
1,000,000 total
1963: Growth rate 2.2% =6.25 Billion
2000: Growth rate 1.35% +_____?_____
6.25 billion (1.0135) ^37
What is the global Human Population
7.2 BILLION PEOPLE
Three most populous nations
Chaina
India
America!!!!!!!!!!!!!!!!!!!!!!!!!
Replacement level fertility
VS.
Total Fertility rate
Replacement- to achieve, the total fertility rate must be slightly ABOVE 2.
Total-measure of children per woman
Does TFR (Total Fert. Rate) tend to be higher or lower in developing or developed countries?
Developed countries tend to have a much LOWER TFR
Why is replacement level fertility not equal to 2.0?
Two children are needed to replace two parents. it must be above 2 for the population to grow. Not everyone survives childbirth.
On which continent is TFR the highest
Africa. Many children dies in childbirth.
What is the Baby Boom in the U.S? Whats the problem?
People had a shit ton of babies.
- more elderly to care for
- Health care
what is the Echo Boom in the U.S? Whats the problem?
Children of Baby Boomers
- There are a ton of them!
- Higher reliance on government help
How much does eating at Higher Trophic levels impact the ecology as compered to lower trophic level consumers?
da fuk type of question is this??????????????
Factors (Social, biological, political) that effect Birth Rate and Fertility Rate
Social- Prices of food, education, etc.
Biological- many babies in poor countries dies
Political- Some countries limit # of children
The rapid growth of the worlds population over the last 100 years is primarily the result of what?
- Better Health Care
- Higher Standards of Living
SKIP :)
SKIP :)
Name the two most useful indicators of overall health of people in a region/ country.
- Infant mortality rate
- Life expectancy
Population Age Structures
The wird pyramid shaped things
Slowing/Stopping population growth
VS.
Not that
less kids = slowing population growth. No Shit
Thomas Malthus and his essay on population
Unchecked population growth would lead to MAJOR problems.
what is biotic potential?
Biotic potential is the maximum reproductive capacity of a population under optimum environmental conditions.
Density Dependent Limiting Factors
VS.
Density Independent Limiting Factors
Dependent -Depends on amount of population have a GREATER effect as population RISES
- Spread of Disease
- Predation
- competition for resources
Independent -Affect population size. Does not matter on Population
- Floods
- drought
- Fires
What are the survivorship curves and the different types?
A sideways “S” curve. Pop rapidly rises before leveling out
How does Women’s education level affect the family size?
Less educated women have more children to join the labor force
Why do women have more children in developing countries
- To Work for them
- To support them
- Children/ Babies dies easier in developing countries
what does the 1990 US Census say about the future total fertility rate of the US
It is declining
FRQ -TFR
TWO reasons why does TFR Decline?
Why does Kenya have a higher TFR (TWO)
Two human activities that impact biodiversity
- more women working = less need of child labor
- Better Healthcare = less infant deaths
- Higher infant death rate (no good care)
- more agricultural (need kids to farm n shit)
- Deforestation for houses and farms
- Pollution from CO2
FRQ Diseases
SARS- Transmission and solution
Malaria- Transmission and solution
Factor contributing to spread
SARS- Spreads from ANIMALS to HUMANS
-Keep animals away from humans
Malaria- Through Mosquito
- use bug spray, avoid mosquito land
- Higher population density, increased likelihood of transmissions
- More Travel (D)
FRQ MEAT
per-capita meat production
Why more efficient to produce grain?
Environmental impact of meat (TWO)
+ AND - TO VEGITARIANISM
52 Billion
- ————- = 20 kg per capita (100% increase)
2. 6 billion - Less land to grow
- Less energy to store grain
- oVERGRAZING
- WATER POLLUTION FROM SHIT
+LESS CHANCE OF CANCER
- LESS PROTEIN
Last FRQ
READ IT NOW!!! SERIOUSLY DO IT! ITS HARD A.F!
