what is the difference between density dependent and density-independent limiting factors?
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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.
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Limiting factors are resources or other factors in the environment that can lower the population growth rate. Limiting factors include a low food supply and lack of space. Limiting factors can lower birth rates, increase death rates, or lead to emigration.
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Density independent abiotic factors depend on the number of individuals in a population, whereas density dependent do not. ... Density dependent abiotic factors affect populations relative to their population size and can involve resource shortages that push a population beyond its carrying capacity.
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Since g and the weight of the object Wobject are fixed, an increase in density means a decrease in the submerged volume, for the equation to hold. For a floating object, the buoyancy force is equal to the gravity force on the object. Hence, the buoyancy force doesn't change with a denser fluid.
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density-independent factor Any factor limiting the size of a population whose effect is not dependent on the number of individuals in the population. An example of such a factor is an earthquake, which will kill all members of the population regardless of whether the population is small or large.
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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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Concentration is the spread of objects in a given area, density is the frequency of objects in a given area,and pattern is the arrangement of objects in a given area.
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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.
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Density is the only thing affecting whether something floats or sinks. If an object has a higher density than the fluid it is in (fluid can mean liquid or gas), it will sink. If it has a lower density, it will float.
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The following things are affected by a density-dependent limiting factor: A population with a high birthrate, a large, dense population, and a population with a high immigration rate. An example of a density-independent limiting factor would be: The eruption of a volcano.
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There is no relationship between the viscosity and density of a fluid. While viscosity is the thickness or thinness of a fluid, density refers to the space between its particles. However, both properties are affected by temperature. When a fluid is heated, its particles move far apart, and it also becomes less viscous.
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Originally Answered: What is difference between density and mass density? Mass is a measure of the amount of matter that an object contains, while density is a measure of how much mass an object contains per a unit volume. Mass is measured in kilograms, while density is typically measured in kilograms per cubed meter.
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Density is simply a ratio between the mass of a sample and it's volume. Specific Heat is a measure of how much thermal energy is required to raise the temperature one degree Celsius of one gram of the material. There is no correlation between the two quantities.
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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. 2.
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Pressure does not depend upon the amount of substance because it is defined as force per unit area. The definition itself eliminates the need of looking for how much of quantity is causing that much pressure. Pressure is an intensive property (independent of amount).
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Limiting factors are resources or other factors in the environment that can lower the population growth rate. Limiting factors include a low food supply and lack of space. ... The carrying capacity (K) is the maximum population size that can be supported in a particular area without destroying the habitat.
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Density dependent factors: a limiting factor that depends on population size. Density Independent factors: affect all populations regardless of the population size.