Population Flashcards

(38 cards)

1
Q

vital statistical data that describe the population.

A

t demographics –

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

Number of individuals in a population

A

POPULATION SIZE

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

Number of members of a population in a given area (Population / area)

A

POPULATION DENSITY

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

Describes where individuals are and where are the others.

A

PULATION DISTRIBUTION

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

Population Size
- Usually symbolized as

A

N

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

Large populations may be? than smaller population

A

more stable

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

Applied for immobile organisms such as plants or very small and slow-moving organisms.

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

Plots called ? are used to determine the population size and even density.

A

quadrats

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
  • A quadrat can be made by staking out an area with sticks and string or by using a wood, plastic, or metal square placed on the ground
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

This technique is for organisms that move around

A

Mark-recapture Method

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

Method Involves capturing a sample of animals and marking them in some way—for instance, using tags, bands, paint, or other body markings.

A

Mark-recapture

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

Then, the marked animals are locked up for further experimantations. T or f

A

F

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

Members are closer to each
other because of an
essential resource.

A

Clunped

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

Most common dispersion

A

Clumped

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

Hippopotamuses in muddy
river,

A

Clumped

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

Individuals are evenly - spaced out.

17
Q
  • The result of competition in resources.
18
Q
  • Competition among
    water root system
19
Q

Rare, only occurs if the resources is uniformly available and the proximity of resource to others does not matter.

20
Q

Dandelions

21
Q

explains how fast a given population grows.

A

population growth rate (PGR)

22
Q

the number of individuals born

A

• Natality -

23
Q

the number of deaths that occur
in the population during a given time period

24
Q

Moving away

25
Moving in
26
birth rate exceeds its death rate.
Exponential
27
If its per capita growth rate is constant
Exponential
28
Unli resouces
Exponential
29
T he number of organisms added in each generation—increases as the population gets larger
Expo
30
J shape
Expo
31
Limited resources
Logistic
32
number of individuals gets large enough
Logistic
33
maximum number of individuals that a particular environment can sustain indefinitely
Carryingcapacityisthe
34
S shape
Logistic
35
Real life
Logistic
36
Fake
exponential
37
Density dependent
Biotic
38
Density independet
Abaiotic