What are 4 examples of density independent limiting factors?
These density-independent factors include food or nutrient limitation, pollutants in the environment, and climate extremes, including seasonal cycles such as monsoons. In addition, catastrophic factors can also impact population growth, such as fires and hurricanes.
What is density independent regulation?
The density of a population can be regulated by various factors, including biotic and abiotic factors and population size. Density-independent regulation can be affected by factors that affect birth and death rates such as abiotic factors and environmental factors, i.e. severe weather and conditions such as fire.
What does density independence mean?
Density-independent factor, also called limiting factor, in ecology, any force that affects the size of a population of living things regardless of the density of the population (the number of individuals per unit area).
What is an example of density independent regulation?
Density-independent factors affect per capita growth rate independent of population density. Examples include natural disasters like forest fires. Limiting factors of different kinds can interact in complex ways to produce various patterns of population growth.
What is density-dependent and independent factors?
Density-dependent factors have varying impacts according to population size. Different species populations in the same ecosystem will be affected differently. Factors include: food availability, predator density and disease risk. Density-independent factors are not influenced by a species population size.
Which of the following is density independent limiting factor?
Which of the following is a density-independent limiting factor? Resource shortages triggered by increasing population size are density-independent limiting factors.
What’s the difference between density dependent and independent factor?
Density-dependent factors have varying impacts according to population size. Density-independent factors are not influenced by a species population size. All species populations in the same ecosystem will be similarly affected, regardless of population size. Factors include: weather, climate and natural disasters.
What is density independent growth?
For a while at least, these populations can grow rapidly because the initial number of individuals is small and there is no competition for resources. This is called density-independent growth because the density of individuals does not have any effect on future growth.
What are three density independent factors?
Density-independent factors: natural disasters, seasonal cycles, unusual weather, and human activity.
What is density independent and dependent?
What human activities are examples of density independent limiting factors?
Bio. Ch. 5.2
| A | B |
|---|---|
| Give examples of density-independent limiting factors in a population. | Natural disasters can cause a sudden decline in population, as can human activities (damming a river; over-cutting a forest); unusual weather; seasonal cycles. |
What are examples of density dependent?
Density-dependent factors include competition, predation, parasitism and disease.