Distribution Of Life N5 U3 P2 Flashcards
Biotic factors
Affect distribution of living things
Disease
Predation
Grazing
Competition
Food availability
Abiotic factors
Affect distribution of non-living things
Temperature
pH
Soil moisture
Light intensity
Effect of grazing
An animal feeds on plants- grass
Over-grazing decreases biodiversity
Moderate grazing can increase biodiversity
Under-grazing decrease biodiversity
Effect of predation
Increases biodiversity
Predators keep number of prey down
Less grazing
Effect of disease
Population decrease
As population increase
Spread of disease increases
Animals, plants more closer
Easier for disease to spread
More organisms die
Effect of food availability
Population decrease
As population increases
Competition increases
Animals starve and die
Effect of competition
Population decreases
As population increase
Competition increase
Die
Effect of pH
Decrease biodiversity
Effect of temperature
Decreases biodiversity
