AP Biology: Chapter 53 (Population ecology) Flashcards
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| 9818431041 | population | a group of individuals of the same species that live in the same area and interbreed, producing fertile offspring | 0 | |
| 9818431042 | density | the number of individuals per unit area or volume | 1 | |
| 9818431043 | dispersion | the pattern of spacing among individuals within the boundaries of a population | 2 | |
| 9818431044 | mark-recapture method | a sampling technique used to estimate the size of animal populations | 3 | |
| 9818431045 | immigration | the influx of new individuals into a population from other areas | 4 | |
| 9818431046 | emigration | the movement of individuals out of a population | 5 | |
| 9818431047 | territoriality | a behavior in which an animal defends a bounded physical space against encroachment by other individuals, usually of its own species | 6 | |
| 9818431048 | demography | the study of changes over time in the vital statistics of populations, especially birth rates and death rates | 7 | |
| 9818431049 | life tables | an age-specific summary of the survival pattern of a population | 8 | |
| 9818431050 | cohort | a group of individuals of the same age in a population | 9 | |
| 9818431051 | 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 |  | 10 |
| 9818431052 | reproductive table | an age-specific summary of the reproductive rates in a population | 11 | |
| 9818431053 | 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 |  | 12 |
| 9818431054 | carrying capacity | the maximum population size that can be supported by the available resources, symbolized as K |  | 13 |
| 9818431055 | logistic population growth model | population growth that levels off as population size approaches carrying capacity |  | 14 |
| 9818431056 | life history | the traits that affect an organism's schedule of reproduction and survival | 15 | |
| 9818431057 | semelparity | reproduction in which an organism produces all of its offspring in a single event; also known as big-bang reproduction | 16 | |
| 9818431058 | iteroparity | reproduction in which adults produce offspring over many years; also known as repeated reproduction | 17 | |
| 9818431059 | K-selection | selection for life history traits that are sensitive to population density | 18 | |
| 9818431060 | r-selection | selection for life history traits that maximize reproductive success in uncrowded environments; also called density-independent selection | 19 | |
| 9818431061 | density dependent | referring to any characteristic that varies with population density | 20 | |
| 9818431062 | density independent | referring to any characteristic that is not affected by population density | 21 | |
| 9818431063 | population dynamics | the study of how complex interactions between biotic and abiotic factors influence variations in population size | 22 | |
| 9818431064 | metapopulation | a group of spatially separated populations of one species that interact through immigration and emigration | 23 | |
| 9818431065 | age structure | the relative number of individuals of each age in a population | 24 | |
| 9818431066 | 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 wastes it generates | 25 |