made them from the definitions given by the reece and campbell book's cd
Terms : Hide Images
| 32244994 | age structure | the relative number of individuals of each age in a population | |
| 32244995 | 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. | |
| 32244996 | carrying capacity | The maximum population size that can be supported by the available resources, symbolized as K. | |
| 32244997 | clumped | Describing a dispersion pattern in which individuals are aggregated in patches. | |
| 32244998 | cohort | A group of individuals of the same age, from birth until all are dead. | |
| 32244999 | 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. | |
| 32245000 | demography | The study of statistics relating to births and deaths in populations. | |
| 32245001 | density | The number of individuals per unit area or volume. | |
| 32245002 | density dependent | Referring to any characteristic that varies according to an increase in population density. | |
| 32245003 | density independent | Referring to any characteristic that is not affected by population density. | |
| 32245004 | dispersion | The pattern of spacing among individuals within geographic population boundaries. | |
| 32245005 | ecological capacity | the actual resource base of a country | |
| 32245006 | 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. | |
| 32245007 | emigration | The movement of individuals out of a population. | |
| 32245008 | exponential population growth | The geometric increase of a population as it grows in an ideal, unlimited environment. | |
| 32245009 | immigration | The influx of new individuals from other areas. | |
| 32245010 | infant mortality | The number of infant deaths per 1, 000 live births. | |
| 32245011 | iteroparity | A life history in which adults produce large numbers of offspring over many years; also known as repeated reproduction. | |
| 32245012 | 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. | |
| 32245013 | life expectancy at birth | The predicted average length of life at birth. | |
| 32245014 | life history | The series of events from birth through reproduction and death. | |
| 32245015 | life table | A table of data summarizing mortality in a population. | |
| 32245016 | logistic population growth | A model describing population growth that levels off as population size approaches carrying capacity. | |
| 32245017 | mark-recapture method | A sampling technique used to estimate wildlife populations. | |
| 32245018 | meta-population | a subdivided population of a single species | |
| 32245019 | population | A localized group of individuals that belong to the same biological species (that are capable of interbreeding and producing fertile offspring). | |
| 32245020 | population dynamics | The study of how complex interactions between biotic and abiotic factors influence variations in population size. | |
| 32245021 | 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. | |
| 32245022 | random dispersion | Describing a dispersion pattern in which individuals are spaced in a patternless, unpredictable way. | |
| 32245023 | repeated reproduction | A life history in which adults produce large numbers of offspring over many years; also known as iteroparity. | |
| 32245024 | reproductive table | An age-specific summary of the reproductive rates in a population. | |
| 32245025 | r-selection | The concept that in certain (r-selected) populations, a high reproductive rate is the chief determinant of life history. | |
| 32245026 | 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 reproduction. | |
| 32245027 | 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. | |
| 32245028 | territoriality | A behavior in which an animal defends a bounded physical space against encroachment by other individuals, usually of its own species. Territory defense may involve direct aggression or indirect machanisms such as scent marking or singing. | |
| 32245029 | uniform | Describing a dispersion pattern in which individuals are evenly distributed. | |
| 32245030 | zero population growth (ZPG) | A period of stability in population size, when the per capita birth rate and death rate are equal. |
