| Definition | Term |
| a group of spatially separated subpopulations connected by active exchange of individuals among subpopulations | |
| overall fitness, which is determined by the survival and reproduction of an individual, plus the survival and reproduction of genetic relatives of the individual | |
| a distribution of individuals in a population in which individuals are uniformly spaced | |
| a portion of a larger population, with which it sustains a connection through immigration and emigration | |
| the physical conditions under which a species might live, in the absence of interactions with other species | |
| sex that produces larger, more energetically costly gametes (eggs or ova) | |
| the total number of individuals, or biomass, of a species present in a specified area | |
| sexual selection in which individuals of one sex compete among themselves for mates | |
| group living generally involving some degree of cooperation between individuals | |
| a population in which the the proportion of individuals in each age class is constant | |
| sexual selection occuring when members of one sex choose mates from among the members of the opposite sex on the basis of some anatomical or behavioral trait, generally leading to | |
| line that best fits the relationship between 2 variables, x and y | |
| biotic factors in the environment, such as disease and competition | |
| symbolized as r, equals per capita birthrate minus per capita death rate | |
| k; the maximum population of a species that a particular ecosystem can sustain | |
| increasing the complexity of the environment of captive animals to foster behaviors characteristic of the species in the wild | |
| an s-shaped pattern of population growth, with population size leveling off at the carrying capacity of the environment | |
| a table of age-specific survival and death, or mortality, rates in a population | |
| maximum per capita rate of population increase; may be approached under ideal environmental conditions for a species. | |
| an area of population ecology concerned with the factors influencing the expansion, decline, or maintenance of populations, including rates of births, deaths, immigration, and emig | |
| a pattern of growth that produces a sigmoidal, or s-shaped, population growth curve | |
| results from differences in reproductive rates among individuals as a result of differences in mating success due to intrasexual selection, intersexual selection, or a mixture of t | |
| a graphical summary of patterns of survival in a population | |
| the conditions under which helping kin should be favored by natural selection | |
| a statistic used to measure how much a sample distribution differs from a theoretical distribution | |
| the geographic range of an organism or the spatial arrangement of individuals in a local population | |
| selection in which individuals increase their inclusive fitness by helping increase the survival and reproduction of relatives that are not offspring | |