6123827091 | Age structure | Percentage of the population (or number of people of each sex) at each age level in a population. | 0 | |
6123827092 | Baby boom | An increase in the number of children being born. | 1 | |
6123827093 | Biotic potential | Maximum rate at which the population of a given species can increase when there are no limits on its rate of growth. | 2 | |
6123827094 | Carrying capacity (K) | Maximum population of a particular species that a given habitat can support over a given period. | 3 | |
6123827095 | Crude birth rate | Annual number of live births per 1,000 people in the population of a geographic area at the midpoint of a given year. | 4 | |
6123827096 | Crude death rate | Annual number of deaths per 1,000 people in the population of a geographic area at the midpoint of a given year. | 5 | |
6123827097 | Cultural carrying capacity | The limit on population growth that would allow most people in an area or the world to live in reasonable comfort and freedom without impairing the ability of the planet to sustain future generations. | 6 | |
6123827098 | Demographic transition | Hypothesis that countries, as they become industrialized, have declines in death rates followed by declines in birth rates. | 7 | |
6123827099 | Emigration | The movement of a population out of an area. | 8 | |
6123827100 | Environmental resistance | All of the limiting factors that act together to limit the growth of a population. | 9 | |
6123827101 | Exponential growth | Growth in which some quantity, such as population size or economic output, increases at a constant rate per unit of time. When the increase in quantity over time is plotted, this type of growth yields a curve shaped like the letter J. | 10 | |
6123827102 | Family planning | Providing information, clinical services, and contraceptives to help people choose the number and spacing of children they want to have. | 11 | |
6123827103 | Fertility rate | Number of children born to an average woman in a population during her lifetime. | 12 | |
6123827104 | Graying | Phenomenon in which a large portion of a population is entering their post-reproductive year. | 13 | |
6123827106 | Immigration | The movement of a population into an area. | 14 | |
6123827107 | Infant mortality rate | Number of babies out of every 1,000 born each year who die before their first birthday. | 15 | |
6123827109 | Intrinsic rate of increase (r) | Rate at which a population could grow if it had unlimited resources. | 16 | |
6123827110 | K-selected species | Species that produce a few, often fairly large offspring but invest a great deal of time and energy to ensure that most of those offspring reach reproductive age. | 17 | |
6123827112 | Life expectancy | Average number of years a newborn infant can be expected to live. | 18 | |
6123827113 | Logistic growth | Pattern in which exponential population growth occurs when the population is small, and population growth decreases steadily with time as the population approaches the carrying capacity. | 19 | |
6123827114 | Migration | Movement of people into and out of specific geographic areas. | 20 | |
6123827115 | Population dynamics | Major abiotic and biotic factors that tend to increase or decrease the population size and affect the age and sex composition of a species. | 21 | |
6123827116 | Population momentum | An increase in population due to large numbers of people entering their reproductive years. | 22 | |
6123827117 | Population profile | A histogram that shows the number of males and females in a given age range. | 23 | |
6123827118 | Replacement-level fertility rate | Average number of children a couple must bear to replace themselves. | 24 | |
6123827119 | r-selected species | Species that reproduce early in their life span and produce large numbers of usually small and short-lived offspring in a short period. | 25 | |
6123827121 | Survivorship curve | Graph showing the number of survivors in different age groups for a particular species. | 26 | |
6123827122 | Total fertility rate (TFR) | An estimate of the average number of children that women in a given population will have during their childbearing years. | 27 | |
6123827125 | Zero Population Growth | Phenomenon that occurs when birth rates equal death rates. | 28 | |
6262678958 | Doubling Time | Time it takes (usually in years) for the quantity of something growing exponentially to double. It can be calculated by dividing the annual percentage growth rate into 70. | 29 |
APES (Webster): Populations Flashcards
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