Lecture 18

Question 1

geometric population growth

Answer 1

each successive generation differs in size by a constant ration (discrete generations - pulsed reproduction)

Question 2

exponential population growth

Answer 2

each successive generation differs in size based on a constant ration times population size at that moment in time (overlapping generations)

Question 3

geometric and exponential population growth

Answer 3

both types produce J-shaped curve, only exist for short periods of time when resources are abundant

Question 4

exponential group does not continue indefinitely

Answer 4

per capita death rates will increase as density
increases, and birth rates will decrease as
resources diminish

Question 5

logistic population growth

Answer 5

if resources become limited, population growth rate will slow and eventually stop

Question 6

carrying capacity (K)

Answer 6

the population size at which growth stops; the number of individuals of a particular species that the local environment can support

Question 7

carrying capacity reached when

Answer 7

per capita B + I = D + E

Question 8

intrinsic rate of increase

Answer 8

the maximum per capita rate of increase, achieved under ideal conditions. Used because we assume it will become realized through the use of the K term