SAVVAS Ch 2: Populations

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Last updated 1:53 AM on 8/4/26
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13 Terms

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Population density

number of individuals per unit area

<p>number of individuals per unit area</p>
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Population distribution

the way individuals are spaced out across their range

<p>the way individuals are spaced out across their range</p>
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Age structure

number of males and females of each age in a population

<p>number of males and females of each age in a population</p>
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Immigration

movement of individuals into an area occupied by an existing population

<p>movement of individuals into an area occupied by an existing population</p>
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Emigration

movement of individuals out of an area

<p>movement of individuals out of an area</p>
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Exponential growth

growth pattern in which the individuals in which the individuals in a population reproduce at a constant rate

<p>growth pattern in which the individuals in which the individuals in a population reproduce at a constant rate</p>
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Logistic growth

growth pattern in which a population's growth slows and then stops following a period of exponential growth

<p>growth pattern in which a population's growth slows and then stops following a period of exponential growth</p>
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Carrying capacity

largest number of individuals a particular species that a particular environment can support

<p>largest number of individuals a particular species that a particular environment can support</p>
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Limiting factor

factor that causes population growth to decrease

<p>factor that causes population growth to decrease</p>
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Density-dependent limiting factor

a limiting factor that depends of population density

<p>a limiting factor that depends of population density</p>
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Density- independent limiting factor

limiting factor that affects all populations in similar ways, regardless of the population density

<p>limiting factor that affects all populations in similar ways, regardless of the population density</p>
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Demography

scientific study of human populations

<p>scientific study of human populations</p>
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Demographic transition

change in a population from high birth and death rates to low birth and death rates

<p>change in a population from high birth and death rates to low birth and death rates</p>