Population growth L3 Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What is a census?

A

Counting total in a small area

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

What is a sampling?

A

Representatively sample small area and multiply by total area - assumes random distribution

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

What are the three patterns of distribution?

A
  • Clumped
  • Uniform
  • Random
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are factors that can effect a populations size?

A
  1. Natality (birth)
  2. Mortality (death)
  3. Immigration (coming)
  4. Emigration (leaving)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Open populations?

A

All four factors are functioning (natality, mortality, immigration, emigration)

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

Closed population

A

No migration

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

What does N stand for?

A

Number of individuals in a population

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

What does D-p stand for?

A

Population density

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

What does ∆N stand for

A

Change in population size

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

What does gr stand for?

A

Growth rate

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

What do you need to find the change in population?

A

(Birth + immigration) - (death + emigration) = ∆N

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

What does ∆t stand for?

A

Time

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

What does cgr stand for?

A

Per capita growth rate

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

How do you find per capita growth rate?

A

Change in population size (∆N), relative to the initial population size (N)

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

When is per capita growth rate most useful?

A

Effective when comparing populations of different sizes (e.g. school population vs.
community)

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