Lecture 2

Question 1

What is a closed population?

Answer 1

A population where there is no immigration or emigration

Question 2

What is pulsed reproduction and death?

Answer 2

Growth where all the reproduction and death happens at one time

Question 3

What are two equations for R?

Answer 3

b-d and (Nt+1 - Nt)/Nt

Question 4

What is the definition of R?

Answer 4

The geometric rate of increase

Question 5

What is another term for the geometric rate of increase?

Answer 5

The discrete growth factor (rd)

Question 6

What is the equation for lambda?

Answer 6

1+R

Question 7

What are two equations for the geometric growth model?

Answer 7

Nt+1 = Nt(lambda) and Nt = N0(lambda)^t

Question 8

What is the equation for r

Answer 8

b-d over infintisismally small intervals

Question 9

What is the equation for the exponential growth model?

Answer 9

Nt = N0e^rt

Question 10

What kind of growth would you model using the exponential growth model?

Answer 10

Continuous reproduction

Question 11

What are the X and Y axes of a time series plot?

Answer 11

t on the x axis

N on the y axis

Question 12

What are the X and Y axes of a population rate of change plot?

Answer 12

dN/dt on the Y axis

N on the X axis

Question 13

What are the X and Y axes of a per capita rate of change plot?

Answer 13

dN/dt/N on the Y axis

N on the X axis

Question 14

What is the shape of a geometric growth model on a time series plot?

Answer 14

upward sloping curve. NO line should be connnecting the data points

Question 15

What is the shape of a geometric growth model on a rate of change plot?

Answer 15

straight, positive line. No continuous line should be connecting the data points

Question 16

What is the shape of a geometric growth model on a per capita rate of change plot?

Answer 16

Straight line that is parallel with the X axis. There should be no continous line connecting the data points