Human Population Flashcards

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1
Q

As of April 2017, the world population is estimated ot have reached ____

A

7.5 Billion

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2
Q

can be generally defined as a group of individuals of the same species occupying a given area at a given time

A

population

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3
Q

study of populations and their interactions with their environment

A

population ecology

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4
Q

Understanding the dynamics of human population requires knowledge of

A

the general principles of population ecology

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5
Q

the environment influences populations in terms of its

A

density and distribution, age, structure, size

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6
Q

the pattern of spacing among individuals within the boundaries of the population

A

dispersion

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7
Q

most common pattern of population dispersion

A

clumped pattern

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8
Q

when individuals are evenly spaced over the area they occupy

A

uniformly pattern

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9
Q

pattern seen in species whose individuals do not have close interactions

A

uniformly pattern

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10
Q

individuals of a population have an unpredictable distribution

A

random pattern

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11
Q

pattern is common in species that prefer solitary lives

A

random pattern

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12
Q

represents the maximum population size that a particular environment can support

A

carrying capacity

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13
Q

Three major factors that account for the population increase

A
  1. Humans developed the ability to expand into diverse habitats and different climate zones
  2. Emergence of early and modern agriculture
  3. Development of sanitation systems, antibiotics, and vaccines
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14
Q

Human population growth continues but it is ______

A

unevenly distributed

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15
Q

Our activities have directly affected, to some degree, about ___ of the earth’s land surface as our ecological footprints have spread across the globe

A

83%

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16
Q

Population size increases because of

A

births and immigration

17
Q

Population size decreases through

A

deaths and emigration

18
Q

the actual level of reproduction of a population per individual

A

fertility

19
Q

also known as birth rate

A

fertility rate

20
Q

also known as death rate

A

mortality rate

21
Q

act of someone coming to live permanently in a foreign country

A

immigration

22
Q

leaving own country to settle permanently to another country

A

emigration

23
Q

average number of children born to each woman, over the woman’s lifespan

A

total fertility rate

24
Q

an accelerating pattern of increasing population size

A

exponential growth

25
Q

According to ________, once the population size exceeds available resources, population growth decreases dramatically.

A

Malthus model

26
Q

shows how birth rates and death rates change over time as a country becomes more developed

A

demographic transition model

27
Q

the preindustrial stage; both birth rates and death rates are high

A

Stage 1

28
Q

Sanitation improvements; food production increases; falling death rates

A

Stage 2

29
Q

birth rates are higher than death rates

A

Stage 3

30
Q

birth rates and death rates drop to low

A

Stage 4

31
Q

average number of years that a person in a particular population is expected to live

A

life expectancy

32
Q

entire number of people of all ages, living in all countries throughout the world

A

global population

33
Q

study of human populations

A

demography

34
Q

collect and process information about population processes such as fertility, mortality, and migration

A

demographers