...density dependent and density independent...

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Answer by Jessie
Submitted on 12/4/2005
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I. Density-Independent Factors = factors acting randomly, with reference to the population density, to regulate population size. 1) Weather - unfavorable weather can limit breeding success or cause mortality during the non- breeding season (e.g., winter mortality). 2) Food Supply - abundance of food is often dependent on climatic factors, and in poor years food supply may limit population size. 3) Habitat Limitation - seasonal, annual, or anthropogenic changes can affect resource levels such as nesting sites or availability of nesting materials. II. Density-Dependent Factors = regulate populations according to the population density. 1) Predation = focuses most intensely on eggs and young, but also may be important for adults. Acts more strongly at high densities. Keeps populations below the theoretical carrying capacity in some cases. 2) Competition = if resources are limiting, only a given number of individuals may persist in a given habitat (the number that can persist is the carrying capacity). At low densities competition is not an important factor in regulating population size, but at high densities (near the carrying capacity) it becomes very important. 3) Parasites and Disease = have the greatest effect at high population densities. Can be important factors regulating population sizes in some cases. Example: Avian cholera can kill very large numbers of wintering or migrating waterfowl that are concentrated in relatively small areas.

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Question by sagir
Submitted on 6/10/2004
Related FAQ: Fractal Frequently Asked Questions and Answers
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what are the density dependent and density independent factors

Answer by Stephanie
Submitted on 9/16/2004
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Density dependending factors include stuff like stress.Independent have no factors.At least I don't think there are.

Answer by Mrssheikh
Submitted on 11/29/2004
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Density-dependent factors are factors such as disease, parasites, or food supply that has an increasing effect as populations increase. Density-independent factors are factors such as temperature, storms, floods, drought, or habitat disruption that affects all populations, regardless of their density. hope this helps :D

Answer by N/A
Submitted on 12/15/2004
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It is mean.

Answer by tc
Submitted on 3/3/2005
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Density independent factors reduce the population by the same proportion(different species). Ex: floods, fires, weather Density Dependent factors are a limit in resources. This may only affect some species. Ex: shortages of food or nesting sights being destroyed. This is caused by the increse in population density.

Answer by dd
Submitted on 4/4/2005
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ddddddddddddddassssssssssssssssssssssssssssssssssssssssssssssssssss

Answer by natasha
Submitted on 9/12/2005
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things thatt afeect the distributon levels and this includes sunlight redation

Answer by val vala
Submitted on 10/23/2005
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The density dependent factors are competition, predation, and parasitism & diseases. Teh density Independent Factors are climate extremes and human disturbances.

Answer by Aaron
Submitted on 10/26/2005
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density-independent is abiotic influences independent on population size.

Answer by sliverdragon37
Submitted on 2/14/2006
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Density independent factors regulate the population regardless of the density of the population, such as the weather, natural disasters, presence of a food supply, and habitat limitation. Density dependent factors influence the population directly proportionally to the population density, such as predators, competition for a mate, or diseases/parasites.

Answer by yeah
Submitted on 10/19/2006
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you're a douche face. jerk off

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