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Human Population Flashcards

0
Q

Early environmental resistance factors

A

Competition for food and water
Predator
Disease

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1
Q

During early history, populations survived as a society of

A

Hunter-gatherers

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2
Q

Bridge between africa and eurasia

A

Fertile crescent

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3
Q

How many founder crops, and modern domesticated animals found in fertile crescent

A

8 founder crops

4/5 modern domesticated livestock

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4
Q

Stimulated invention of irrigation in FC

A

Presence of two major river systems

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5
Q

What marked the agricultural revolution

A

Humans settled into towns and villages, unlike nomadic lifestyle

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6
Q

During the agricultural revo, food supply wasn’t hunted, it was

A

Grown and raised

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7
Q

Cause of population growth in agric revo

A

Greater control of food supply

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8
Q

Population reached how many by Middle Ages

A

800 Million

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9
Q

Density dependent limiting factors

A

Famines and disease

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10
Q

Caused about half of human death

A

Malaria

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11
Q

Eliminated 1/3 of Europe’s population

A

Black death

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12
Q

Bubonic plague cause

A

Rats, fleas, bacteria with yersinia pisti

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13
Q

New technologies and innovations during Industrial Revolution

A 
Water treatment
Antibiotics
The steam engine
Electricity
Vaccines
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14
Q

Death rate in newborns

A

Infant mortality rate

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15
Q

What happened to IMR during industrial revo

A

Massive drop

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16
Q

Drop in IMR means

A

Increase in overall average life expectancy

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17
Q

Life expectancy pre-industrial in Britain

A

25-40

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18
Q

Industrialized farming, water treatment, modern medicine removed

A

Density dependent limiting factors

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19
Q

When does exponential growth occur?

A

Population size and rate of growth increases

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20
Q

How does doubling time measure growth

A

Estimating how long a population will double in size with its current rate of growth

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21
Q

Doubling time equation

A

70 / current % growth rate

22
Q

Study of human population

A

Demography

23
Q

Group of interbreeding species found in same habitat

A

Population

24
Developing countries have population rates that tend to be
Grows more rapidly Younger Poorer
25
Developed countries tend to be
Decreasing population size Older Wealthy
26
Comparing developed and developing countries require these demographic variables
GDP Life expectancy Total fertility rate
27
How long an average newborn will live in a society
Life expectancy
28
Average number of children a woman will have in her lifetime
Total fertility rate
29
What is GDP
Standard of living measurement
30
Growing population has a fertility rate
Above replacement level
31
Below replacement level meansq
Shrinking population level
32
GDP is highly correlated with
Life expectancy and infant mortality rate
33
People move out of an area
Emigration
34
Move to a new area
Immigration
35
What immigration offsets does to a developed country
Delays normal pop decline
36
Population pyramids factor
Age distribution and gender
37
Increased likeliness to have more children
Pronatalist pressures
38
What lead drop in death rates during transition pd
Access to food | Improved medicine
39
During late transition stage, what efforts were done for
Reduce birth rate
40
Slow pop increase
Late transition stage
41
Balanced birth and death rates
Industrial age
42
Status of total fertility rate during industrial pd
Close to replacement level
43
Birth rate during postnatal stage
Falls
44
Fertility rate below replacement level
Post-industrial stage
45
4 stages of demographic transition
Preindus Transitional Indus Postindus
46
World population will stabilize during
Next century
47
Low pop size
8 B
48
Med pop size
9.3 B
49
High p size
13 B
50
Shape of pop curve that grows exponentially
J
51
Pop growing at its biotic potential
Exponential
52
Limits pop growth because of limited resources
Carrying capacity
53
S shape of graph grows until it reaches
Stable size based on carrying capacity

Envi Sci (9 decks)

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