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12 Cards in this Set
- Front
- Back
Population |
A population is a summation of all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding. |
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Random Distribution
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In probability and statistics, a probabilitydistribution assigns a probability to each measurable subset of the possible outcomes of a random experiment, survey, or procedure of statistical inference.
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Clumped Distribution |
Clumped distribution is the most common type of dispersion found in nature. In clumped distribution, the distance between neighboring individuals is minimized. |
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Uniform Distribution |
A uniform distribution, sometimes also known as a rectangular distribution, is adistribution that has constant probability. |
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Immigration |
get out of country |
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Emigration |
get in country |
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Exponential Growth |
Exponential growth is the increase in a quantity according to the law. |
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Logistical Growth |
Logistic Growth Equation When N=98. Agrowth rate of zero means that the population is not growing, which is what happens at carrying capacity because the birth rate usually equals the death rate. |
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Carrying Capacity |
The carrying capacity of a biological species in an environment is the maximum population size of the species that the environment can sustain indefinitely, given the food, habitat, water, and other necessities available in the environment. |
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Limiting Factors |
Limiting factors are things that prevent a population from growing any larger. For example, 10 rabbits may live in a habitat that has enough water, cover and space to support 20 rabbits, but if there is only enough food for ten rabbits, the population will not grow any larger. |
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Density Dependent Factors |
density-dependent factor Any factor limiting the size of a population whose effect is dependent on the number of individuals in the population. For example, disease will have a greater effect in limiting the growth of a large population, since overcrowding facilitates its spread. |
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Density Independent Factors |
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. |