Question

Explain the difference between density independent and density dependent limiting factors.

Answer 1

Answer:

Density independent limiting factors are the abiotic factors and environmental factors that regulate the population growth rate. Generally, they are physical or chemical in nature. These factors affect the birth and death rates of a population. Some of these factors include climate extremes, natural disasters (fires, floods, earthquakes and hurricanes) and pollution. Food or nutrient limitation is another density independent limiting factor.Regardless of the population size, individuals may die due to these density independent limiting factors – environmental factors or abiotic factors. Therefore, a large population of a species can be regulated into a normal population by density independent manner by these factors

Explanation:

Density dependent limiting factors are biological in nature. The main factors are diseases, competition, and predation. These factors positively or negatively correlate with the population size. Density dependent limiting factors influence the population growth either by affecting reproduction or survival.Moreover, these factors affect population mortality and migration. Carrying capacity is dependent on the density dependent limiting factors. It is the maximum number of individuals that can live in an area based on the density dependent limiting factors.

Answer 2

Answer:

Density-dependent limiting factors cause a population's per capita growth rate to change—typically, to drop—with increasing population density. ... Density-independent factors affect per capita growth rate independent of population density. Examples include natural disasters like forest fires.

Explanation: