Population Stability Flashcards

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

What is population stability?

A
  • natality is equal to mortality over a period of time
  • The size of a population can be regarded as stable and constant because of the impact of environmental resistance
  • Seasonal changes play a very important role
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Define Biotic Potential

A

The ability of a population of a particular species to propagate under ideal environmental conditions - sufficient food supply, no diseases, and no predators

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

What 2 factors determine biotic potential?

A

an organism’s rate of reproduction and its litter size -the number of offspring produced at one birth

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

—- organisms have lower biotic potential? Explain your answer using an example

A

Large

Large mammals produce one offspring per year or breeding season. On the other hand, insects produce thousands of offspring per year.

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

What is environmental resistance?

A
  • factors that limit the biotic potential of an organism
  • abiotic and biotic factors that limit the organism from endlessly increasing its population
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the carrying capacity?

A

maximum population of a species an ecosystem can sustain indefinitely without being degraded due to deterioration and damage

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

Name 5 factors that affect carrying capacity

A

food supply, competition, seasonal weather patterns and impact of disease

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

Differentiate between population population regulation and population stability

A

Regulation: tendency of a population to return to its equilibrium

Stability: tendency of a population to remain at a constant size

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