Population Ecology 1

B-d

I-e

K-N

DN/r

(K-N)/K

Increases

Decreases

Is stable

May increase or decrease, depending on K

May increase or decrease, depending on i

Rapidly increase

Slowly increase

Slowly decrease

Rapidly decrease

Stabilize

B=d

B>d

B

R>0

None of the responses are correct

Models a J-shaped curve

Takes into account the carrying capacity of the environment

Shows continued exponential growth

Would characterize the uncontrolled growth of a population

Models a K-shaped growth curve

RN/K

RN

RN((K-N)/K))

RN((N-K)/K))

RN/K

RN

RN(K+N)

RN((K-N)/K))

RN((N-K)/K))

It fits an S-shaped curve

It incorporates the concept of carrying capacity

It describes population density shifts over time

It accurately predicts the growth of most populations

It predicts an eventual state in which birth rates equal death rates

The growth rate will not change

The growth rate will approach zero

The population will increase exponentially

The carrying capacity of the environment will increase

Birth rate

Death rate

Density

Both A and B are correct

A, B and C are correct