Limiting Factors Flashcards
1
Q
What are limiting factors?
A
- the factors that help to regulate the growth of a population
2
Q
What kinds of limiting factors are there?
A
- density independent factors
- density dependent factors
3
Q
What are density independent limiting factors?
A
- factors that limit the growth of a population as a result of natural factors and not because of the density or number of the organisms
4
Q
What are the types of density independent factors?
A
- physical factors
- catastrophic events
5
Q
What are some examples of density independent physical factors?
A
- rainfall
- temperature
- humidity
- acidity
- salinity
6
Q
What are some examples of density independent catastrophic events?
A
- floods
- fire
- drought
- volcanic eruptions
- tsunami
- earthquakes
7
Q
What are density dependent limiting factors?
A
- factors that have a greater effect when the population density is high
8
Q
What happens when organisms are more crowded (density dependent factors)?
A
- compete more for resources
- are more easily found by predators
- spread disease and parasites more readily
9
Q
What are some examples of resources that organisms compete for when they are more crowded?
A
- food
- light
- oxygen
- water
- space
- shelter
