13 terms

Miller and Levine Chapter 5 Populations

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population density
number of individuals per unit of area
immigration
movement of individuals into an area occupied by an existing population
emigration
movement of individuals out of a population
exponential growth
growth pattern in which the individuals in a population reproduce at a constant rate.
logistic growth
growth pattern in which a population's growth rate slows or stops following a period of exponential growth.
carrying capacity
largest number of individuals of a population that a given environment can support.
limiting factor
factor that causes the growth of a population to decrease.
density-dependent limiting factor
limiting factor that depends on population size.
predator-prey relationship
mechanism of population control in which a population is regulated by predation.
density-independent limiting factor
limiting factor that affects all populations in similar ways regardless of population size.
demography
scientific study of human populations
demographic transition
change in a population from high birth and death rates to low birth and death rates.
age-structure diagram
graph of the numbers of males and females within different age groups of a population
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