Question 1

Age distribution can be used to calculate

Accepted Answer

A)  survival. 
B)  drift. 
C)  colonization cycles. 
D)  dispersal. 
A)  survival. 
B)  drift. 
C)  colonization cycles. 
D)  dispersal.

Question 2

Which of the following equations best represents the geometric rate of increase?

Accepted Answer

A)  r = T/(ln R0) 
B)  r = (ln R0)/T 
C)  λ = Nt/( Nt+1) 
D)  λ = (Nt+1)/Nt 
E)  None of the choices are correct. 
A)  r = T/(ln R0) 
B)  r = (ln R0)/T 
C)  λ = Nt/( Nt+1) 
D)  λ = (Nt+1)/Nt 
E)  None of the choices are correct.

Question 3

Although the dispersal rate of Africanized bees is impressive, it still pales in comparison to the dispersal rate of the collared dove.

Accepted Answer

A) True 
 B)False

Question 4

Research conducted in the Bavarian Forest National Park shows that plants, insects, and birds have had a different responses to climate warming. Which of the following statements is correct?

Accepted Answer

A)  Plants have moved south while insects and birds have stayed in the same location. 
B)  Insects and birds have moved north while plants have not moved. 
C)  Plants have moved north while insects and birds have not moved. 
D)  Insects and birds have moved south while plants have moved north. 
A)  Plants have moved south while insects and birds have stayed in the same location. 
B)  Insects and birds have moved north while plants have not moved. 
C)  Plants have moved north while insects and birds have not moved. 
D)  Insects and birds have moved south while plants have moved north.

Question 5

Studies by Korpimäki and Norrdahl in western Finland showed that kestrel and owl densities closely follow variation in vole densities with little delay or lag time. They attributed this rapid numerical response to the

Accepted Answer

A)  rapid rates of reproduction in the kestrel and owl populations. 
B)  nomadic nature of the kestrel and owl populations. 
C)  sedentary nature of mature individuals in the kestrel and owl populations. 
D)  lack of adequate predator defenses in the vole populations. 
E)  rapid rates of reproduction in the vole populations. 
A)  rapid rates of reproduction in the kestrel and owl populations. 
B)  nomadic nature of the kestrel and owl populations. 
C)  sedentary nature of mature individuals in the kestrel and owl populations. 
D)  lack of adequate predator defenses in the vole populations. 
E)  rapid rates of reproduction in the vole populations.

Question 6

Many sedentary organisms have a "dispersing stage" and rely on vectors such as animals, water, or wind to aid in their spread.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following statements regarding "mean generation time" is false?

Accepted Answer

A)  It is generally calculated only for the females in a population. 
B)  It is the average time from offspring to offspring. 
C)  It can be calculated using a fecundity schedule and life table. 
D)  It can be used to calculate the geometric growth rate. 
E)  It can be used to calculate the per capita rate of increase. 
A)  It is generally calculated only for the females in a population. 
B)  It is the average time from offspring to offspring. 
C)  It can be calculated using a fecundity schedule and life table. 
D)  It can be used to calculate the geometric growth rate. 
E)  It can be used to calculate the per capita rate of increase.

Question 8

Organisms that produce many offspring would best be characterized by which of the following?

Accepted Answer

A)  A convex survivorship curve 
B)  A concave survivorship curve 
C)  A linear survivorship curve 
D)  A sigmoidal survivorship curve 
E)  None of the choices are correct. 
A)  A convex survivorship curve 
B)  A concave survivorship curve 
C)  A linear survivorship curve 
D)  A sigmoidal survivorship curve 
E)  None of the choices are correct.

Question 9

Calculate the generation time given the following population data: R0 = 0.601, r = - 0.05, ∑xlxmx = 6.4, mx = 0.96

Accepted Answer

A)  -128 
B)  0.15 
C)  1.60 
D)  6.67 
E)  10.6 
A)  -128 
B)  0.15 
C)  1.60 
D)  6.67 
E)  10.6

Question 10

The Africanized honeybee stopped spreading southward through South America by about 1983 in response to

Accepted Answer

A)  unfavorable climatic factors. 
B)  aggressive pest control measures. 
C)  introduction of a species-specific parasite as a means of biological control. 
D)  severe competition with the closely related European honeybee. 
E)  None of the choices are correct. 
A)  unfavorable climatic factors. 
B)  aggressive pest control measures. 
C)  introduction of a species-specific parasite as a means of biological control. 
D)  severe competition with the closely related European honeybee. 
E)  None of the choices are correct.

Question 11

The age distribution of a population can reveal

Accepted Answer

A)  growth potential. 
B)  survivorship. 
C)  reproduction. 
D)  both growth potential and survivorship. 
E)  growth potential, survivorship, and reproduction. 
A)  growth potential. 
B)  survivorship. 
C)  reproduction. 
D)  both growth potential and survivorship. 
E)  growth potential, survivorship, and reproduction.

Question 12

The per capita rate of increase cannot be a negative number.

Accepted Answer

A) True 
 B)False

Question 13

In stream environments the downstream drift of organisms is countered by the upstream movements in addition to reproduction. What is the name for this process?

Accepted Answer

A)  Survivorship curve 
B)  Population dynamics 
C)  Colonization cycle 
D)  Spates 
A)  Survivorship curve 
B)  Population dynamics 
C)  Colonization cycle 
D)  Spates

Question 14

________ is the process by which individuals disperse out of a population.

Accepted Answer

The answer of ________ is the process by which individuals...

Question 15

Korpimaki and Norrdahl's research on voles (prey) and kestrels and owls (predators) suggest that the predator's population dynamics are

Accepted Answer

A)  a functional response. 
B)  a numerical response. 
C)  in response to vole densities. 
D)  both a functional response and a numerical response. 
E)  both a numerical response and in response to vole densities. 
A)  a functional response. 
B)  a numerical response. 
C)  in response to vole densities. 
D)  both a functional response and a numerical response. 
E)  both a numerical response and in response to vole densities.

Question 16

Research conducted in the United Kingdom shows that approximately 84% of the species studied shifted their ranges northward. This change correlates to which of the follwoing?

Accepted Answer

A)  New predators 
B)  Increase in global temperature 
C)  Decrease in habitat 
D)  Decrease in temperature 
A)  New predators 
B)  Increase in global temperature 
C)  Decrease in habitat 
D)  Decrease in temperature

Question 17

The per capita rate of increase can be used to estimate changes in population size in species with non-overlapping generations.

Accepted Answer

A) True 
 B)False

Question 18

Type II survivorship curve indicates

Accepted Answer

A)  low juvenile mortality and high mortality in older adults. 
B)  high juvenile mortality and low mortality in older adults. 
C)  low juvenile mortality and low mortality in older adults. 
D)  high juvenile mortality and high mortality in older adults. 
E)  equal chance of dying at any age. 
A)  low juvenile mortality and high mortality in older adults. 
B)  high juvenile mortality and low mortality in older adults. 
C)  low juvenile mortality and low mortality in older adults. 
D)  high juvenile mortality and high mortality in older adults. 
E)  equal chance of dying at any age.

Exam 10: Population Dynamics

Age distribution can be used to calculate

Which of the following equations best represents the geometric rate of increase?

Although the dispersal rate of Africanized bees is impressive, it still pales in comparison to the dispersal rate of the collared dove.

Research conducted in the Bavarian Forest National Park shows that plants, insects, and birds have had a different responses to climate warming. Which of the following statements is correct?

Studies by Korpimäki and Norrdahl in western Finland showed that kestrel and owl densities closely follow variation in vole densities with little delay or lag time. They attributed this rapid numerical response to the

Many sedentary organisms have a "dispersing stage" and rely on vectors such as animals, water, or wind to aid in their spread.

Which of the following statements regarding "mean generation time" is false?

Organisms that produce many offspring would best be characterized by which of the following?

Calculate the generation time given the following population data: R0 = 0.601, r = - 0.05, ∑xlxmx = 6.4, mx = 0.96

The Africanized honeybee stopped spreading southward through South America by about 1983 in response to

The age distribution of a population can reveal

The per capita rate of increase cannot be a negative number.

In stream environments the downstream drift of organisms is countered by the upstream movements in addition to reproduction. What is the name for this process?

________ is the process by which individuals disperse out of a population.

Korpimaki and Norrdahl's research on voles (prey) and kestrels and owls (predators) suggest that the predator's population dynamics are

Research conducted in the United Kingdom shows that approximately 84% of the species studied shifted their ranges northward. This change correlates to which of the follwoing?

The per capita rate of increase can be used to estimate changes in population size in species with non-overlapping generations.

Type II survivorship curve indicates

Introduction to Ecology: Historical Foundations and Developing Frontiers

Life on Land

Life in Water

Population Genetics and Natural Selection

Temperature Relations

Water Relations

Energy and Nutrient Relations

Social Relations

Population Distribution and Abundance

Population Growth

Life Histories

Competition

Exploitative Interactions: Predation, Herbivory, Parasitism, and Disease

Mutualism

Species Abundance and Diversity

Species Interactions and Community Structure

Primary Production and Energy Flow

Nutrient Cycling and Retention

Succession and Stability

Landscape Ecology

Geographic Ecology

Global Ecology

Filters

Calculate the generation time given the following population data: R₀ = 0.601, r = - 0.05, ∑xl_xm_x = 6.4, m_x = 0.96