Density Dependent Limiting Factors
The density dependent factors are factors whose effects on the size or growth of the population vary with the population density. There are many types of density dependent limiting factors such as; availability of food, predation, disease, and migration. However the main factor is the availability of food. For example when the food supply of jack rabbits get depleted, they start to die or migrate to another places causing the foxes or the secondary consumers to have a shortage of food; also causing them to die or migrate.
|
Density Independent Limiting Factors
Like density dependent limiting factors, the independent factor of death valley affects the population of the living things as well. However this time the factors are more Abiotic rather than biotic thing. For example in death valley one of the independent factors is natural disasters like flash flooding. However flash flooding in death valley increases the population size of death valley. After flash floods or thunderstorms more water causes more vegetation giving more food for primary consumers. So as more and more primary consumers like rabbits come more food is available for secondary consumers like fox's; causing the population density of death valley to increase.
|