Lec 3

Question 1

Forecast of human population growth

Answer 1

It is believed the exponential growth will plateau by 2100

Question 2

Population

Answer 2

Individuals who live in the same place at the same time

Question 3

Humans are considered

Answer 3

One population, because we can travel and disperse easily

Question 4

Population change is based on

Answer 4

Current size

Birth rates

Death rates

Immigration and emigration

Carrying capacity (K)

Question 5

Population change equation

Answer 5

(b+i)-(d+e)

Question 6

Human carrying capacity

Answer 6

Difficult to calculate because of cultural evolution and technological advancements.

Question 7

Population density

Answer 7

The number of individuals per unit area

Question 8

Population distribution

Answer 8

Spatial arrangement of individuals

Question 9

3 types of distribution

Answer 9

Random

Regular/even

Clumped

Question 10

Shaping factors-Age structure

Answer 10

Periods of successful repro

Periods of high and low juvenile and adult survival

If old individuals are being replaced

Whether it is declining

Question 11

Shaping factor- Sex ratio

Answer 11

Important for reproduction

Question 12

Which countries account for more population growth

Answer 12

Less developed countries

Question 13

More developed countries account for

Answer 13

Account for 17 percent of the world’s population and use 70 percent of the world’s resources

Question 14

Black death

Answer 14

A large drop in human population

Question 15

Human quality of life

Answer 15

Has increased over time

Question 16

Human impacts on the Earth

Answer 16

We have protected some endangered species and ecosystems

Question 17

Environmental degradation

Answer 17

Wasting, depleting, and degrading the natural capital

Humans directly affect 83 percent of land surfaces

Question 18

Species extinction

Answer 18

Is occurring 100 times faster

Question 19

Malthusian catastrophe

Answer 19

If population continues to increase in its current trend, a catastrophe will occur over resources

Question 20

Example of malthusian catastrophe

Answer 20

Rwandan Genocide

Question 21

Malthusian trap

Answer 21

Increased food production/resources

Higher quality of lifestyle which leads to population increase

Population increase depletes resources

Resource availability decreases and quality of life decreases

This is a cycle

Question 22

What the Malthusians got wrong

Answer 22

People are focusing on spreading resources more

Question 23

If we lived like Americans

Answer 23

We would need more than 4 earths to sustain ourselves

Question 24

Ecological footprint

Answer 24

A tool used to expressed the environmental impact of an individual (per capita) or a population or a country

Question 25

Ecological footprint includes

Answer 25

Land or water needed for food Resources to produce consumable products Land we physically occupy Resources required to offset carbon emissions and other wastes

Question 26

Biocapacity

Answer 26

The ability of an environment to provide resources we need to live Capacity of a place to produce biological materials used by humans

Question 27

If a population's ecological footprint exceeds the region's biocapacity...

Answer 27

That region is at a deficit

Question 28

Three options to assist the environment

Answer 28

Decrease birth Increase death (NO) Have a smaller footprint

Question 29

3 major cultural events

Answer 29

Agricultural revolution Industrial-medical revolution Information-globalization revolution

Question 30

Solution to lack of resources

Answer 30

Redirect financial flows Preserve Natural Capital Equitable Resource Governance