Mr. Anderson from Bozeman Science talks about Biotic and Abiotic Factors
Limiting Factors
All populations have a maximum upper limit, and that is known as the population's carrying capacity. The carrying capacity is determined by elements called limiting factors. There are two types of limiting factors: density dependent and density independent.
Density dependent limiting factors include disease, competition, and predation. Some density dependent limiting factors lower reproductive growth rate at lower population sizes and other factors lower reproductive growth rate at higher population sizes. Density dependent limiting factors are a form of biotic factor.
Density independent limiting factors usually involve environmental stress. Density independent factors are not influenced by population change and and are usually abiotic. Some examples of density independent factors are nutrient limitation, climate extremes, and pollutants in the environment.
Density dependent limiting factors include disease, competition, and predation. Some density dependent limiting factors lower reproductive growth rate at lower population sizes and other factors lower reproductive growth rate at higher population sizes. Density dependent limiting factors are a form of biotic factor.
Density independent limiting factors usually involve environmental stress. Density independent factors are not influenced by population change and and are usually abiotic. Some examples of density independent factors are nutrient limitation, climate extremes, and pollutants in the environment.
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