J shape and S shaped growth curves

limiting factor principle

Too much or too little of any physical or chemical factor can limit or prevent growth of a population, even if all other factors are at or near the optimal range of tolerance

environmental resistance

combination of all factors that limit population growth. determines the carrying capacity

J curve

exponential

S curve

logistic

exponential growth

occurs in a population of organisms when the number of organisms rises at an ever-increasing rate. Results in Population Explosion

logistic growth

A model describing population growth that levels off as population size approaches carrying capacity

limiting factors

Factors that determine number of organisms in a population. Regulate population growth

carrying capacity

Maximum population of a given species that a particular habitat can sustain indefinitely