Intro Flashcards
1
Q
Ecological Factors Examples
A
Food
Microclimate
Protection from natural enemies
Protection from competitors
2
Q
Abiotic factors
A
Climate, altitude, aspect, soil structure, pH, nutrients, hydrology, seasonality
3
Q
Biotic factors
A
Food, natural enemies,(predators, parasites and disease), mutualists (reproduction, resource capture, defence)
4
Q
Liebig’s Law of the Minimum
A
The only limiting factor is the most limiting factor
5
Q
Mitscherlich’s Law
A
Yield depends on all sub-optimal factors. The smaller the difference between a factor and its optimum, the better
6
Q
Name the 2 mechanisms of competition
A
- Exploitation - reduction of a shared resource (scramble)
2. Interference - behavioural and chemical (contest)
7
Q
Name 4 examples of mutualism
A
- Resource aquisition (e.g nitrogen fixation between bacteria and plants)
- Pollination
- Defence
- Gut flora
