Explain How Density Independent Limiting Factors Can Affect Populations

Explain How Density Independent Limiting Factors Can Affect Populations?

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.

How would limiting factors affect the population?

Limiting factors are resources or other factors in the environment that can lower the population growth rate. … Limiting factors can lower birth rates increase death rates or lead to emigration. When organisms face limiting factors they show logistic growth (S-shaped curve curve B: Figure below).

What is density-independent limiting factor?

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).

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What are density-independent factors give an example?

Most density-independent factors are abiotic or nonliving. Some commonly used examples include temperature floods and pollution. How could temperature be a factor in determining the density of a population?

What is a density-dependent limiting factor that can affect the human population growth of North Carolina?

Density-Dependent limiting factors include competition predation herbivory parasitism disease and stress from overcrowding.

What are density dependent and density independent factors?

Density-dependent depends upon the gain and loss rate. Whereas Density Independent acts on their own. The factors of Density-dependent are food shelter prediction competition and disease. On the other hand The factors of Density Independent are flood fire drought extreme temperature and tornados.

What factors affect population?

Population growth rate is affected by birth rates death rates immigration and emigration. If a population is given unlimited amounts of food moisture and oxygen and other environmental factors it will show exponential growth.

Would a density independent limiting factor have more of an effect on a population size in a large ecosystem or in a small ecosystem?

Would a density-independent limiting factor have more of an effect on population size in a large ecosystem or in a small ecosystem? Size does not matter and has no effect on the density-independent limiting factor.

Which would be least likely to be affected by a density-dependent limiting factor?

Chapter 5 Study Guide Biology Crisp
Question Answer
which would be least likely to be affected by a density-dependent limiting factor? a small scattered population
what is a density-independent limiting factor? earthquake

How are density-dependent limiting factors different from density independent limiting factors?

Density independent limiting factors are the factors that influence the size and growth of population irrespective of the population density. In contrast density dependent limiting factors are the biological factors that influence the size and the growth of population depending on the density of the population.

What are density independent factors for humans?

There are many common density independent factors such as temperature natural disasters and the level of oxygen in the atmosphere. These factors apply to all individuals in a population regardless of the density.

Which is an example of a density independent factor on a population quizlet?

A density-independent factor is one where the effect of the factor on the size of the population is independent of and does NOT depend upon the original density or size of the population. The effect of weather is an example of a density-independent factor.

What is density-dependent population growth?

Density-dependent growth: In a population that is already established resources begin to become scarce and competition starts to play a role. We refer to the maximum number of individuals that a habitat can sustain as the carrying capacity of that population.

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What will most likely occur if population density increases in a population that is density-dependent?

The correct option isb.

In a density-dependent population the birth rate will increase if population density…

What limiting factors affect human populations quizlet?

What limiting factors affect human population? The human population may be limited by the availability of food and living space and by disease and natural disasters.

What is a limiting factor of a population that does not depend on the population density?

What limiting factors do NOT typically depend on population density? Density-INDEPENDENT limiting factors such as: unusual weather such as hurricanes droughts or floods and natural disasters such as wildfires. competition predation herbivory parasitism disease and stress from overcrowding.

How do density independent and density dependent population controls differ?

Density dependent factors are those that regulate the growth of a population depending on its density while density independent factors are those that regulate population growth without depending on its density.

What are some density dependent limiting factors and density independent limiting factors that may influence the sea otter population as it tries to recover?

What are some density-dependent limiting factors and density-independent limiting factors that may influence the sea otter population as it tries to recover? Some density-dependent limiting factors are predation and density-independent limiting factors could be a storm and human activity.

Which of the following factors affecting population growth is density-independent?

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 factors decrease a population?

The two factors that decrease the size of a population are mortality which is the number of individual deaths in a population over a period of time and emigration which is the migration of an individual from a place.

What are the three main factors that affect a population?

Three primary factors account for population change or how much a population is increasing or decreasing. These factors are birth rate death rate and migration.

Which type of limiting factor affects a large population more than it affects a small population?

The density dependent limiting factor is the factor which affects the population on the basis of the density. For example the effect of the disease will be more profound if the population is large but in small populations few members will get infected.

How might increasing the amount of a limiting nutrient affect the carrying capacity of a population?

If the limiting nutrient in a pond is increased the productivity of the plant life in the pond gets better. Once the producers increase in number the carrying capacity of the pond also increases hence more animals can be sustained by the pond ecosystem. This event will result in an increase in population growth.

What type of effect has an increasing impact as the population size increases?

Cards
Term As of 2008 approximately how many humans live on the earth? Definition 6 billion
Term What may happen when a population exceeds its carrying capacity? Definition Both a) and d) are possible.
Term What type of effect has an increasing impact as the population size increases? Definition density-dependent effect

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Which of the following is a density-dependent limiting factor in a population of organisms?

Density-dependent limiting factors include competition predation herbivory parasitism and disease and stress from overcrowding. Competition is a density-dependent limiting factor. The more individuals living in an area the sooner they use up the available resources.

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.

Which of the following choices is a 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.

How does population density differ from population size?

Population size is the actual number of individuals in a population. Population density is a measurement of population size per unit area i.e. population size divided by total land area.

What do you think some density independent limiting factors might be quizlet?

Unusual wildfires such as hurricanes droughts or floods and natural disasters such as wildfires can act as density independent limiting factors.

What is a density-dependent effect?

Definition. (population ecology) An effect in which the intensity changes with the increasing population density e.g. the effects in which the intensity increases with the increasing population density.

How do density-dependent and density independent factors affect a population’s size provide examples of each?

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 are three examples of density independent limiting factors?

The category of density independent limiting factors includes fires natural disasters (earthquakes floods tornados) and the effects of pollution.

What are density independent factors give an example?

Most density-independent factors are abiotic or nonliving. Some commonly used examples include temperature floods and pollution. How could temperature be a factor in determining the density of a population?

What is density dependence from the perspective of an individual and a population?

Density dependence occurs when present or past population size affects the population’s per capita growth rate (Sinclair and Pech 1996 Turchin 1999). In closed populations (i.e. no migration) the change in abundance is determined by the difference in birth- and death rates.

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