AP Biology Chapter 52: Population Ecology Vocabulary
94462412 | Population Ecology | The study of how members of a population interact with their environment, focusing on factors that influence population density and growth. P1151 | 94462412 | |
94462413 | Population | a group of individuals of one species that live in a particular geographical area. p1151 | 94462413 | |
94462414 | Density | number of individuals per unit area or volume. p1152 | 94462414 | |
94462415 | Dispersion | the pattern of spacing among individuals within geographic population boundaries. p1152 | 94462415 | |
94462416 | Mark-recapture method | a sampling technique used to estimate wildlife populations. p 1152 | 94462416 | |
94462417 | Clumped | describing a dispersion pattern in which individuals are aggregate to patches. p1153 | 94462417 | |
94462418 | Uniform | describing a dispersion pattern in which individuals are evenly dispersed. p1153 | 94462418 | |
94462419 | Random | describing a dispersion pattern in which individuals are spaced in a pattern less, unpredictable way. p1153 | 94462419 | |
94462420 | Demography | the study of statistics relating to deaths and births in populations. p1154 | 94462420 | |
94462421 | Life Table | a table of data summarizing mortality in a population. p1154 | 94462421 | |
94462422 | Cohort | a group of individuals of the same age, from birth until all are dead. p1154 | 94462422 | |
94462423 | Survivorship curve | a plot of the number of members of a cohort that are still alive at each age; one way to express age specific mortality. p1154 | 94462423 | |
94462424 | Reproductive table | an age specific summary of the reproductive rates in a population. p1155 | 94462424 | |
94462425 | Life history | a series of events from birth through reproduction and death. p1156 | 94462425 | |
94462426 | Big-bang reproduction | a life history in which adults have but a single reproductive opportunity to produce large numbers of offspring, such as the life history of the Pacific Salmon. Also known as semelparity. p1156 | 94462426 | |
94462427 | Semelparity | a life history in which adults have but a single reproductive opportunity to produce large numbers of offspring, such as the life history of the Pacific salmon. Also known as "big-bang production." p1156 | 94462427 | |
94462428 | Repeated reproduction | a life history in which adults produce large numbers of offspring over many years. Also known as Interoparity. p1156 | 94462428 | |
94462429 | Interoparity | a life history in which adults produce large numbers of offspring over many years. Repeated reproduction. p1156 | 94462429 | |
94462430 | Zero population growth | a period of stability in population size when the per capita birth rates and death rates are equal. p1159 | 94462430 | |
94462431 | Exponential population growth | the geometric increase of a population as it grows in an ideal, unlimited environment. p1160 | 94462431 | |
94462432 | Intrinsic rate increase | the difference between the number of births and the number of deaths, symbolized as r max; the maximum population growth rate. p1160 | 94462432 | |
94462433 | Carrying capacity | the maximum population size that can be supported by the available resources, symbolized by K. p1160 | 94462433 | |
94462434 | Logistic population growth | a model describing population growth that levels off as population size approaches carrying capacity. p1161 | 94462434 | |
94462435 | k-selection | the concept that in certain (k-selected) populations, life history is centered around producing relatively few offspring that have a good chance of survival. p1163 | 94462435 | |
94462436 | r-selection | the concept that in certain (r-selected) populations, a high reproductive rate is the chief determinant of life history. p1163 | 94462436 | |
94462437 | Density dependant | any characteristic that varies according to an increase in population density. p1164 | 94462437 | |
94462438 | Negative feedback | a primary mechanism of homeostasis, whereby a change in a physiological variable that is being monitored triggers a response that counteracts the initial fluctuation. p1164 | 94462438 | |
94462439 | Density independent | a characteristic that does not vary in response to population density. p1164 | 94462439 | |
94462440 | Demographic transition | a shift from zero population growth in which birth rates and death rates are high to zero population growth characterized instead by low birth and death rates. p1169 | 94462440 | |
94462441 | Age structure | the relative age of individuals of each age in a population. p1169 | 94462441 | |
94462442 | Ecological footprint | a method to use multiple constraints to estimate the human carrying capacity of Earth by calculating the aggregate land and water area in various ecosystem categories that is appropriated by a nation to produce all the resources it consumes and to absorb all the waste it generates. p1170 | 94462442 |