Brainscape's Knowledge GenomeTM

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


See full index

Apes 🦧 > Apes Ch.6 > Flashcards

Apes Ch.6 Flashcards

1
Q

Population

A

A group of the same species

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

Population ecology

A

Study of the rise and falls of certain species, populations are dynamic

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

Inputs

A

Birth and immigration

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

Outputs

A

Emmigration and death.

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

What is the value of a population study

A

Important to know how many male and female, might give us a chance to help dying populations if we know how to help it.

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

Population size

A

Total number of organisms of that species

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

Population density

A

How close the individuals are from the species, how packed

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

Population density formula

A

Number of organisms divided by the area of the habitat

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

Endangered

A

Numbers are so few, on the verge of Extinction

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

Threatened

A

Not as bad as endangered, but on the verge of being endangered

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

Population distribution

A

Where the Organisms are in relation to the others

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

Random distribution

A

Not everything in the same place, scattered

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

Uniform distribution

A

Often associated with birds, if anyone goes in their territory they will get killed, they are equidistant from each other

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

Population sex ratio

A

Used to get an idea about offspring

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

Population age structure

A

Only used for people, based on age

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

Dark green

A

Pre -Reproductive group, 15 and under

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

Medium green

A

Reproductive group, 15 through 45

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

Light green

A

Post reproductive group, 45 and up

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

How do you find the future population

A

Look at the amount of pre reproductive group

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

Why is immigration wanted

A

Food, intellect, diversity, etc

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

What are the two factors that influence a population

A

Density dependent and density Independent

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

Density dependent

A

Has a greater effect people are closer to each other, for example a virus

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

Density Independent

A

Population is far apart, so a flood would affect this population

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Exponential growth

A

True exponential growth doubles each generation, reproduction starts slow, not very realistic because it cannot keep going forever because they will eventually run out of space and resources
J shape graph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Limiting factors

A

Factors necessary for survival

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Formula to predict how big a population is

A

N. = N. E^(r)(t)
T. O

R=growth rate
T=time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Logistic growth

A

Grows rapidly for a while then levels out
S shape graph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Carrying capacity

A

Number of resources available for the species, when the species reaches their limit, they are going to reduce their population

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Overshoot

A

A population might exceed carrying capacity if it is allowed by more resources

30
Q

Die off

A

Population starts to decrease below carrying capacity

31
Q

Preditation

A

Predator prey relationships

32
Q

Why do predators increase after preys increase

A

When prey increases there are more food resources for the predator to increase

33
Q

What do invasive species lack

A

Predators

34
Q

Describe r and k selected species

A

K selected species increase population slowly, because they live longer and have a longer generation time, take longer to take reach maturity, offsprings are larger, fewer, and offspring requires care.(humans)

R selected species are the opposite(frogs)

35
Q

Survivorship curves

A

How long you expect a organism to live

36
Q

Type 1

A

Lose very few in the beginning, dies slowly, humans

37
Q

Type 2

A

Just as likely to die early or to die old

38
Q

Type 3

A

Dies very quickly

39
Q

Metapopulation

A

Group of the same species, but located in different areas, species of these populations move from one group to another group

40
Q

Corridors

A

Connections between the habitats for species to go to one to another

41
Q

Anthropogenic corridor

A

Connection between habitats but man-made

42
Q

Competition

A

Struggle of organisms to obtain the same limiting resource

43
Q

Competitive exclusion principle

A

Two organisms competing for one resource, one will be successful one will not

44
Q

Resource partitioning

A

Limited resources, each organism shares the food and can maintain their population levels by sharing and having more than one resource

45
Q

Temporal resource partitioning

A

Same resource but not direct competition, for example wolves eat during the day but coyotes eat during the night

46
Q

Spatial resource partitioning

A

Competing for the same resources from different areas, for example plants competing for water but one gets their water from the deeper ground one gets it from the top ground, competing, but from different places

47
Q

Morphological resource partitioning

A

Morphology is structure, competing for the same resource but their structure is different. For example, a big predator has a big jaw and eats big or adult seeds, while a small animal with a smaller jaw is still competing for the same resources but eats small seeds

48
Q

Why is a cow eating a plant not true preditation

A

Because it is an animal eating a plant not eating another animal

49
Q

Pathogens

A

Survives by devouring organisms, for example viruses, bacteria, fungi

50
Q

Parasitoids

A

Organism lays an egg inside another organism

51
Q

Parasite

A

Organism that lives in another organism, and other organism is called a host

52
Q

Prey defenses

A

To avoid being eaten or harmed by a predator

53
Q

Behavioral defense

A

Standing still, running

54
Q

Morphological defense

A

Structures, such as spines, thorns, sharp teeth, etc

55
Q

Chemical defense

A

Mosquito bite, snake venom

56
Q

Mimicry defense

A

Looking like different species

57
Q

Symbiotic relationships

A

Occurs when two organisms live very close to each other, can even be like inside for example a coral reef

58
Q

Mutualism

A

Both species benefits

59
Q

Examples of mutualism

A

Acacia trees and ants
Lichen and fungus
Coral and polypus

60
Q

Symbiosis commensalism

A

One of two organisms benefit, while the other is not affected for example birds and trees

61
Q

Parasitism

A

When organism benefits while one is harmed

62
Q

Keystone species

A

Gets its name from architectural buildings built from stone, they are species that must be there or the ecosystem collapses for example starfish they increase the biodiversity of coral reefs

63
Q

Ecological succession

A

Process of change in a species over time

64
Q

Succession

A

Orderly change in type of species over time, very predictable

65
Q

Primary succession

A

Change in species in an area without soil in the beginning, starts in areas without dirt but plants can grow because of a pioneer plant.

66
Q

Pioneer plants

A

First plant in primary succession

67
Q

Secondary succession

A

Change form, devastated area but soil is still present, weed is likely to be a pioneer plant in secondary succession

68
Q

How is it possible to get soil from one place to another place without soil

A

Erosion and weathering, a lot of soil is carried in the wind

69
Q

Climax plants

A

Last plants usually trees

70
Q

Theory of island biogeography

A

What the number of organisms on an island depend on, this is a theory or an explanation of how many species there are on every island

71
Q

What is the theory of Island biogeography

A

This is a theory where the size of the island, distance from the mainland, and its biotic and abiotic factor is explained.

The bigger the island, the more species it has, the more habitats and resources the more species, the closer the island is the mainland the more species it has because it’s closer to fly or swim to.

Apes 🦧 (6 decks)

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