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APES > Unit 3 > Flashcards

Unit 3 Flashcards

1
Q

Age distribution

A

The portion of people that are in different age groups (in certain population )

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2
Q

Age structure

A

Age distribution in certain population

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3
Q

Age structure pyramid

A

A graph used to demonstrate a populations growth

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4
Q

Birth control pill

A

A pill used by women to level hormones and prevent pregnancies

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5
Q

China one child policy

A

Limits the number of children in families to stop population growths in china

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6
Q

Contraceptives

A

Medical or physical preventatives to stop pregnancies

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7
Q

Crude birth rate

A

The number of births per 1000 people per year

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8
Q

Crude death rate

A

Number of deaths per 1000 individuals in a year

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9
Q

Demographic transition

A

A social, cultural, or economic change

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10
Q

Demography

A

The study of statistical changes in human population

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11
Q

Doubling time

A

The amount of time it will take to double a population

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12
Q

Biotic potential

A

The max rate a population can reproduce in ideal conditions

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13
Q

Birth rate

A

Number of live births per 1000 people

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14
Q

Carrying capacity

A

The max population size an environment sustain based on a number of factors

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15
Q

Death rate

A

Total number of deans in population per 1000 people

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16
Q

Density dependent factors

A

A factor that affects a population based on population density

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17
Q

Density independent factors

A

Factors that is independent to a populations density and will affect its survival all the same

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18
Q

Emigration

A

Leaving a country

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19
Q

Exponential growth

A

Growth that starts slowly then grows quicker as population increases

20
Q

Extinction

A

Where every single member of a species is gone :(

21
Q

Generalists

A

Animals who survive in numerous conditions w/ large range diet

22
Q

Growth rates

A

Now a population changes in size

23
Q

Immigration

A

Going/coming to a new country

24
Q

Industrial stage

A

Population growth slows and stabilizes (stage 3, demography transition)

25
Q

Infant mortality

A

Rate at which children under 5 die

26
Q

K-selected species

A

Species with high parental care, few offspring, and typically long life spans (type | on survivorship curve)

27
Q

Limiting factors

A

Abiotic or biotic factors that tend to slow or stop population growth

28
Q

Life expectancy

A

How long the typical lifespan is in a species

29
Q

Logistic curve mass

A

Population growth that slows as it reaches currying capacity, causes s shapes curve

30
Q

Malthus, Thomas

A

Each and every animal has A carrying capacity, humans tend to overshoot

31
Q

Population

A

A species of animal living in certain area

32
Q

Population density

A

Number of people per unit of area

33
Q

Population distribution

A

Dispersal of population in area

34
Q

Population ecology

A

The study of population dynamics

35
Q

Population size

A

Countable quantity representing number of individuals population

36
Q

Post industrial stag

A

Population starts to shrink cus growth decreases (bulk of ages)

37
Q

Pre industrial stage

A

Population is stable high death and birth rates

38
Q

R-selected species

A

Low parental care, large amounts offspring, relatively short life (type ill )

39
Q

Replacement fertility

A

How many offspring a female needs to have in order to keep stable population

40
Q

Rule of 70

A

70/ population growth = doubling time

41
Q

TFR

A

How many children a women is having

42
Q

Transitional stage

A

Birth rates increase death rates decrease

43
Q

Sex ratio

A

Male to female ratio

44
Q

Specialists

A

Thrive in certain environment with limited diet

45
Q

Survivor ship curves

A

Diagram that shows certain animal lifespans

46
Q

Growth rate

A

Global = (CBR - CDR)/10 (for national add emigration and immigration

APES (4 decks)

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