Question 1

Geometric growth is described by the equation

Accepted Answer

A)  Nt=R0Nt+1 
B)  R0=Nt/Nt+1 
C)  Nt+1=R0Nt 
D)  Nt=R0Nx 
E)  x=R0/Nt 
A)  Nt=R0Nt+1 
B)  R0=Nt/Nt+1 
C)  Nt+1=R0Nt 
D)  Nt=R0Nx 
E)  x=R0/Nt

Question 2

After the demographic transition, human birth rates

Accepted Answer

A)  Exceed death rates 
B)  Equal death rates 
C)  Are less than death rates by a factor of 2 
D)  Are double death rates 
E)  Are logistic 
A)  Exceed death rates 
B)  Equal death rates 
C)  Are less than death rates by a factor of 2 
D)  Are double death rates 
E)  Are logistic

Question 3

In Grime's life history scheme ruderals are adapted to

Accepted Answer

A)  Live in highly competitive environments 
B)  Take advantage of habitat disturbances 
C)  Be density dependent 
D)  Live near the carrying capacity 
E)  Maximize reproductive output 
A)  Live in highly competitive environments 
B)  Take advantage of habitat disturbances 
C)  Be density dependent 
D)  Live near the carrying capacity 
E)  Maximize reproductive output

Question 4

Which of these organisms is continuously iteroparous?

Accepted Answer

A)  Dall mountain sheep 
B)  Agave 
C)  Salmon 
D)  Blue tits 
E)  Chimpanzees 
A)  Dall mountain sheep 
B)  Agave 
C)  Salmon 
D)  Blue tits 
E)  Chimpanzees

Question 5

Oak trees are r-selected compared to dandelions.

Accepted Answer

A) True 
 B)False

Question 6

The intrinsic rate of increase is

Accepted Answer

A)  The rate of population growth under ideal conditions 
B)  The rate of population growth for r selected species 
C)  The rate of population growth when resources are limiting 
D)  Independent of predation and competition 
E)  Density dependent 
A)  The rate of population growth under ideal conditions 
B)  The rate of population growth for r selected species 
C)  The rate of population growth when resources are limiting 
D)  Independent of predation and competition 
E)  Density dependent

Question 7

If N=500, K=1000 and r=0.1, what is dN/dt?

Accepted Answer

A)  50 
B)  100 
C)  150 
D)  25 
E)  125 
A)  50 
B)  100 
C)  150 
D)  25 
E)  125

Question 8

Citizens in which of the following countries have the largest ecological footprint?

Accepted Answer

A)  Canada 
B)  Germany 
C)  U.K. 
D)  Australia 
E)  China 
A)  Canada 
B)  Germany 
C)  U.K. 
D)  Australia 
E)  China

Question 9

The potential reproductive output under ideal conditions is called

Accepted Answer

A)  Fertility 
B)  Fecundity 
C)  Ideal fertility 
D)  Maximal reproductive output 
E)  Ideal maximum reproductive fertility 
A)  Fertility 
B)  Fecundity 
C)  Ideal fertility 
D)  Maximal reproductive output 
E)  Ideal maximum reproductive fertility

Question 10

If $\lambda$=1.1 and Nt=1000, then Nt+4=

Accepted Answer

A)  1100 
B)  1464 
C)  4000 
D)  4400 
A)  1100 
B)  1464 
C)  4000 
D)  4400

Question 11

Rabbits were introduced into Victoria, Australia, in about 1860. Approximately how long did it take them to cross the country and appear on the west coast?

Accepted Answer

A)  10 years 
B)  20 years 
C)  50 years 
D)  100 years 
E)  150 years 
A)  10 years 
B)  20 years 
C)  50 years 
D)  100 years 
E)  150 years

Question 12

You are involved in a bird count. One year you count 80 red-winged blackbirds and the next year the number is only 60. What is the finite rate of increase?

Accepted Answer

A)  20 
B)  140 
C)  0.25 
D)  1.33 
E)  -0.25 
A)  20 
B)  140 
C)  0.25 
D)  1.33 
E)  -0.25

Question 13

In general, the growth pattern of human population through history shows a/an ______ pattern.

Accepted Answer

A)  Logistic 
B)  Exponential 
C)  Sigmoidal 
D)  Standard geometric 
E)  Declining 
A)  Logistic 
B)  Exponential 
C)  Sigmoidal 
D)  Standard geometric 
E)  Declining

Question 14

If r=0.1, how long does it take a population to double?

Accepted Answer

A)  6.93 years 
B)  0.7 years 
C)  20 years 
D)  0.05 years 
E)  0.75 years 
A)  6.93 years 
B)  0.7 years 
C)  20 years 
D)  0.05 years 
E)  0.75 years

Question 15

If there is a time lag such that at the time the population is 800, the effects of crowding are only being felt as if the population were 500, then what is dN/dt if r=0.2 and K=1000?

Accepted Answer

A)  0.5 
B)  400 
C)  80 
D)  160 
E)  100 
A)  0.5 
B)  400 
C)  80 
D)  160 
E)  100

Exam 10: Population Growth

Geometric growth is described by the equation

After the demographic transition, human birth rates

In Grime's life history scheme ruderals are adapted to

Which of these organisms is continuously iteroparous?

Oak trees are r-selected compared to dandelions.

The intrinsic rate of increase is

If N=500, K=1000 and r=0.1, what is dN/dt?

Citizens in which of the following countries have the largest ecological footprint?

The potential reproductive output under ideal conditions is called

If λ\lambdaλ =1.1 and Nt=1000, then Nt+4=

Rabbits were introduced into Victoria, Australia, in about 1860. Approximately how long did it take them to cross the country and appear on the west coast?

You are involved in a bird count. One year you count 80 red-winged blackbirds and the next year the number is only 60. What is the finite rate of increase?

In general, the growth pattern of human population through history shows a/an ______ pattern.

If r=0.1, how long does it take a population to double?

If there is a time lag such that at the time the population is 800, the effects of crowding are only being felt as if the population were 500, then what is dN/dt if r=0.2 and K=1000?

An Introduction to Ecology

Population Genetics

Natural Selection, Speciation, and Extinction

Behavioral Ecology

Temperature

Water

Nutrients

Demographic Techniques and Population Patterns

Life Tables and Demography

Competition and Coexistence

Facilitation

Predation

Herbivory

Parasitism

Population Regulation

Species Diversity

Species Richness Patterns

Species Richness and Community Services

Succession

Island Biogeography

Terrestrial Biomes

Marine Biomes

Freshwater Biomes

Food Webs and Energy Flow

Biomass Production

Biogeochemical Cycles

Filters

If $\lambda$ =1.1 and N_t=1000, then N_t+4=