a group of indivudals of similar age within a population
age structure
numbers or pereentages of individuals in each age class of a population
biotic potential
the maximum rate of increase of a population under ideal conditions; an exponential growth curve that includes death rates
carrying capacity
the macimum number of indiuvdals of a population that a given area or habitat can support
exponential growth
growth which increases as a function of the size of the population (i.e. the larger the population, the greater the increase)
fecundity
reporductive output of an indivdual
life table
a complete list of the survivorship and fecundity of a population by age class
limiting factor
a specific environmental factor which prevents a population from achieving its biotic potential
logistic growth
growth that follows a sigmoid (S-shaped) curve in which growth is slow initially, then rapid until the carrying capacity is approached, and finally slow again as the population reaches its carrying capacity
mortality
death rate in a population, typically expressed as the percentage of indivduals in a population that die in a given time interval
net reproductive rate
expected number of offspring of a female during her lifetime
population
a group of individuals of the same speices in the same place at the same time
post-reproductives
the age class which includes indiviudals that are no longer reproducing
pre-reproductives
the age class which includes indivudals that have not yet achieved sexual maturity
reproductives
the age class which incldues sexually-mature indivudlas that are reproducing
survivorship curve
a graph of the number of surviving indivudals in a population as a function of age