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AP Biology: Chapter 53 (Population ecology) Flashcards

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9818431041populationa group of individuals of the same species that live in the same area and interbreed, producing fertile offspring0
9818431042densitythe number of individuals per unit area or volume1
9818431043dispersionthe pattern of spacing among individuals within the boundaries of a population2
9818431044mark-recapture methoda sampling technique used to estimate the size of animal populations3
9818431045immigrationthe influx of new individuals into a population from other areas4
9818431046emigrationthe movement of individuals out of a population5
9818431047territorialitya behavior in which an animal defends a bounded physical space against encroachment by other individuals, usually of its own species6
9818431048demographythe study of changes over time in the vital statistics of populations, especially birth rates and death rates7
9818431049life tablesan age-specific summary of the survival pattern of a population8
9818431050cohorta group of individuals of the same age in a population9
9818431051survivorship curvea plot of the number of members of a cohort that are still alive at each age; one way to represent age-specific mortality10
9818431052reproductive tablean age-specific summary of the reproductive rates in a population11
9818431053exponential population growthgrowth of a population in an ideal, unlimited environment, represented by a J-shaped curve when population size is plotted over time12
9818431054carrying capacitythe maximum population size that can be supported by the available resources, symbolized as K13
9818431055logistic population growth modelpopulation growth that levels off as population size approaches carrying capacity14
9818431056life historythe traits that affect an organism's schedule of reproduction and survival15
9818431057semelparityreproduction in which an organism produces all of its offspring in a single event; also known as big-bang reproduction16
9818431058iteroparityreproduction in which adults produce offspring over many years; also known as repeated reproduction17
9818431059K-selectionselection for life history traits that are sensitive to population density18
9818431060r-selectionselection for life history traits that maximize reproductive success in uncrowded environments; also called density-independent selection19
9818431061density dependentreferring to any characteristic that varies with population density20
9818431062density independentreferring to any characteristic that is not affected by population density21
9818431063population dynamicsthe study of how complex interactions between biotic and abiotic factors influence variations in population size22
9818431064metapopulationa group of spatially separated populations of one species that interact through immigration and emigration23
9818431065age structurethe relative number of individuals of each age in a population24
9818431066ecological footprintthe 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 generates25

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