Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

APES > Unit 3 > Flashcards

Unit 3 Flashcards

1
Q

A group of individuals that belong to the same species and live in the same area

A

population

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

All the different populations that live together in an area

A

community

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

the study of factors that cause populations to increase or decrease

A

population ecology

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Number of individuals per unit area

A

population density

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

a description of how individuals are distributed with respect to one another

A

population distribution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

ratio of males to females in a population

A

sex ratio

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

number of males and females of each age in a population

A

age structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

a resource that a population cannot live without and that occurs in quantities lower than the population would require to increase in size

A

limiting resource

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

factor that limits a population more as population density increases

A

density-dependent factor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Largest number of individuals of a population that a environment can support

A

carrying capacity (K)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

limiting factor that affects all populations in similar ways, regardless of population size

A

density-independent factor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

explains how fast a given population grows

A

population growth rate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

the maximum potential for growth of a population under ideal conditions with unlimited resources

A

intrinsic growth rate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

a mathematical description of idealized, unregulated population growth

A

exponential growth model

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

a growth model that describes a population whose growth is initially exponential, but slows as the population approaches the carrying capacity of the environment

A

logistic growth model

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

when a population becomes larger than the environment’s carrying capacity

A

overshoot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

a rapid decline in a population due to death

A

die-off

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

a species with a low intrinsic growth rate that causes the population to increase slowly until it reaches carrying capacity

A

K-selected species

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

a species that has a high intrinsic growth rate, which often leads to population overshoots and die-offs

A

r-selected species

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

high survivorship until old age and then high death rates

A

type I survivorship curves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

relatively consistent decline in survivorship throughout life

A

type II survivorship curves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

low survivorship early in life and few individuals reach adulthood

A

type III survivorship curves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

strips of natural habitat that connect populations

A

corridor

24
Q

A group of spatially separated populations of one species that interact through immigration and emigration

A

metapopulation

25
Q

genetically similar parents mate and produce inferior offspring

A

inbreeding depression

26
Q

the study of interactions between species

A

community ecology

27
Q

close interaction between species in which one species lives in or on the other

A

symbiotic relationship

28
Q

A relationship between two organisms in which one organism benefits and the other is unaffected

A

commensalism

29
Q

a keystone species that creates or maintains habitat for other species

A

ecosystem engineer

30
Q

gradual change in living communities that follows a disturbance

A

ecological succession

31
Q

succession that occurs on surfaces where no soil exists

A

primary succession

32
Q

Succession following a disturbance that destroys a community without destroying the soil

A

secondary succession

33
Q

First species to populate an area during primary succession

A

pioneer species

34
Q

historically the final stage of succession

A

climax community

35
Q

a theory that demonstrates the dual importance of habitat size and distance in determining species richness

A

theory of island biogeography

36
Q

The scientific study of population characteristics

A

demography

37
Q

movement of people into a country

A

immigration

38
Q

movement of people out of a country

A

emigration

39
Q

number of births/deaths per 1,000 individuals per year

A

crude birth/death rate (CBR/CDR)

40
Q

the number of years it takes for a population to double

A

doubling time

41
Q

The average number of children a woman will have throughout her childbearing years

A

total fertility rate (TFR)

42
Q

the total fertility rate required to offset the average number of deaths in a population in order to maintain the current population size

A

Replacement level fertility

43
Q

the theory that as a country moves from a subsistence economy to industrialization and increased affluence it undergoes a predictable shift in population growth

A

theory of demographic transition

44
Q

Impact = Population x Affluence x Technology

A

IPAT equation

45
Q

number of births per 1,000 individuals per year

A

Crude birth rate (CBR)

46
Q

number of deaths per 1,000 individuals per year

A

crude death rate (CDR)

47
Q

global population growth

A

(cbr-cdr)/10

48
Q

population growth of a nation

A

[(CBR + immigration) - (CDR + emigration)]/10

49
Q

doubling time equation

A

70/% growth rate

50
Q

the difference between immigration and emigration in a given year per 1,000 individuals

A

net migration rate

51
Q

age structure diagram common of developed countries that is widest on the bottom and narrowest at the top

A

population pyramid

52
Q

continued population growth after growth reduction measures have been taken

A

population momentum

53
Q

the theory that a country moves from a subsidence economy to industrialization to increased affluence as it undergoes population growth

A

theory of demographic transition

54
Q

ecological footprint of a country

A

per capita footprint x number of people

55
Q

a measure of the value of all products & services produced in 1 yr by a country

A

gross domestic product (GDP)

APES (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions