Which factor is a density independent limiting factor quizlet?
Density Independent Factors: unrelated to population size ex. natural disaster, hurricane, tornado, flood. Density Dependant Factors: a limiting factor of a population wherein large, large dense populations are more affected than small, less crowded ones ex. predation, competition, food supply.
What is a density dependent limiting limiting factor?
Definition. noun. A limiting factor of a population wherein large, dense populations are more strongly affected than small, less crowded ones.
What are three density independent limiting factors?
Density-independent factors: natural disasters, seasonal cycles, unusual weather, and human activity. What is the relationship between competition and population size?
What is density independent examples?
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 the difference between density dependent and independent?
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 an independent factor?
It is a variable that stands alone and isn’t changed by the other variables you are trying to measure. For example, someone’s age might be an independent variable. Other factors (such as what they eat, how much they go to school, how much television they watch) aren’t going to change a person’s age.
What human activities are examples of density independent limiting factors?
Density-independent limiting factors depend on population density, or the number of organisms per unit area. Examples include severe weather, natural disasters, and human activities. Some of these factors may have more severe effects when population density is high.
Can you identify which factors are density dependent and which are density independent?
Density-dependent regulation can be affected by factors that affect birth and death rates such as competition and predation. 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.
Is Unusual weather a density dependent limiting factor?
Density-independent limiting factors affect all populations in similar ways, regardless of population size and density. Unusual weather such as hurricanes, droughts, or floods, and natural disasters such as wildfires, can act as density-independent limiting factors.
What is the difference between density dependent limiting factor density-independent limiting factor?
Density-independent limiting factors affect populations no matter what their size is; density-dependent ones affect the population only when the number of organisms reach a certain level.
Is stress a density-independent limiting factor?
Density-dependent factors tend to operate when a population is large and crowded. They affect a population because of its density. These limiting factors include competition, predation, disease, and stress.
What happens to a population in response to a density-independent limiting factor?
A density-independent limiting factor will affect a population without taking into consideration the current population size in a certain area. Whether the population size has reached its carrying capacity or not, a density-independent limiting factor will always affect the population.
Which is an example of a density dependent limiting factor?
Density-dependent limiting factors tend to be biotic—having to do with living organisms. Competition and predation are two important examples of density-dependent factors.
Why is temperature a density independent factor?
How could temperature be a factor in determining the density of a population? This makes it a density-independent factor because population density does not matter. Changes in temperature, such as cold fronts, are density-independent factors.
Is rainfall a density independent factor?
Density independent factors determine population changes and set the stage for the existence of populations. Density dependent factors are primarily responsible for regulating populations about an average level of abundance. II. Abiotic Factors include such things as Temperature, Humidity, Rainfall, Soil pH, etc.