4.7.1.3 Biotic Factors Flashcards
1
Q
What is a biotic factor?
A
- a living factor
2
Q
What are biotic factors which affect a community?
A
- availability of food
- new predators arriving
- new pathogens
- community
3
Q
How can food availability affect a community?
A
- more food means more successful breeding
- increase in population
4
Q
How can new predators affect a community?
A
- more species killed
- decrease in population
5
Q
How can new pathogens affect a community?
A
- population has no resistance to new pathogen
- decrease in population
6
Q
How can competition affect a community?
A
- if one species is better adapted, it will outcompete it until numbers of lesser adapted species are insufficient to breed
- decrease in population
