AP Biology Chapter 53 Flashcards
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| 724204799 | age structure | the relative number of individuals of each age in a population | 0 | |
| 724204800 | big-bang reproduction | reproduction in which an organism produces all of its offspring in a single event; also known as semelparity. | 1 | |
| 724204801 | carrying capacity | the maximum population size that can be supported by the available resources, symbolized as K | 2 | |
| 724204802 | cohort | a group of individuals of the same age in a population | 3 | |
| 724204803 | demographic transition | in a stable population, a shift from high birth and death rates to low birth and death rates | 4 | |
| 724204804 | demography | the study of changes over time in the vital statistics of populations, especially birth rates and death rates | 5 | |
| 724204805 | density | the number of individuals per unit area or volume | 6 | |
| 724204806 | density dependent | referring to any characteristic that varies with population density | 7 | |
| 724204807 | density independent | referring to any characteristic that is not affected by population density | 8 | |
| 724204808 | dispersion | the pattern of spacing among individuals within the boundaries of the population | 9 | |
| 724204809 | ecological capacity | the natural limit of a population set by resources in a particular environment | 10 | |
| 724204810 | ecological footprint | the aggregate land and water area required by a person, city, or nation to produce all of the resources it consumes and to absorb all of the waste it generates | 11 | |
| 724204811 | emigration | the movement of individuals out of a population | 12 | |
| 724204812 | exponential population growth | growth of a population in an ideal, unlimited environment, represented by a J-shaped curve when population size is plotted over time | 13 | |
| 724204813 | immigration | the influx of new individuals into a population from other areas | 14 | |
| 724204814 | infant mortality | A figure that describes the number of babies that die within the first year of their lives in a given population | 15 | |
| 724204815 | iteroparity | reproduction in which adults produce offspring over many years; also known as repeated reproduction | 16 | |
| 724204816 | K-selection | selection for life history traits that are sensitive to population density; also called density-dependent selection | 17 | |
| 724204817 | life expectancy at birth | the predicted average length of life at birth | 18 | |
| 724204818 | life history | the traits that affect an organism's schedule of reproduction and survival | 19 | |
| 724204819 | life table | an age-specific summary of the survival pattern of a population | 20 | |
| 724204820 | logistic population growth | population growth that levels off as population size approaches carrying capacity | 21 | |
| 724204821 | mark-recapture method | a sampling technique used to estimate the size of animal populations | 22 | |
| 724204822 | metapopulation | a group of spatially separated populations of one species that interact through immigration and emigration | 23 | |
| 724204823 | population | a group of individuals of the same species that live in the same area and interbreed, producing fertile offspring | 24 | |
| 724204824 | population dynamics | the study of how complex interactions between biotic and abiotic factors influence variations in population size | 25 | |
| 724204825 | population ecology | the study of populations in relation to the environment, including environmental influences on population density and distribution, age structure, and variations in population size | 26 | |
| 724204826 | repeated reproduction | a life history in which adults produce large numbers of offspring over many years; also known as iteroparity. | 27 | |
| 724204827 | reproductive table | an age-specific summary of the reproductive rates in a population | 28 | |
| 724204828 | r-selection | selection for life history traits that maximize reproductive success in uncrowded environments; also called density-independent selection | 29 | |
| 724204829 | semelparity | reproduction in which an organism produces all of its offspring in a single event; also known as big-bang reproduction | 30 | |
| 724204830 | survivorship curve | a plot of the number of members of a cohort that are still alive at each age; one way to represent age-specific mortality | 31 | |
| 724204831 | territoriality | a behavior in which an animal defends a bounded physical space against encroachment by other individuals, usually of its own species | 32 | |
| 724204832 | zero population growth (ZPG) | a period of stability in population size, when additions to the population through births and immigration are balanced by subtractions through deaths and emigration | 33 |