chp. 53 vocab Flashcards
density independent
a birth or death rates that doesn’t change with population density
age structure
relative number of individuals of each age in the population
exponential growth
unrestricted growth of a population of organisms, occurring when resources in its habitat are unlimited
mark-recapture method
portion of population captured, marked, and released. Then a portion later captured and amount marked decides density
r-selection
a population that has a shorter lifespan and produce many offspring have exponential growth
carrying capacity
the maximum population size that a particular environment can sustain
dispersion
pattern of spacing among individuals within boundaries of the population
immigration
influx of new individuals to an area
population
a group of individuals of a single species living in the same general area
survivorship curve
graphic method of representing the data in a life table; a plot of the proportion on numbers in a cohort(group of individuals) still alive at each age
density
number of individuals per unit area or volume
ecological footprint
the total land and water area required by each person, city, or nation to produce all the resources it consumes and to absorb all the waste it generates
k-selection
populations that have longer lifespans and produce fewer offspring have logistic growth
population dynamics
studying complex interactions between abiotic and biotic factors that cause variation in the size of populations
territoriality
defense of a bounded physical space against encroachment by other individuals
