Question 1

Fecundity is another term for the net reproductive rate.

Accepted Answer

A) True 
 B)False  False

Question 2

The 'mean generation time' of a population equals

Accepted Answer

A)  ($\Sigma$x lxmx)/R0. 
B)  $\Sigma$ $\lambda$nx. 
C)  $\Sigma$ lx mx. 
D)  $\Sigma$ x lx mx. 
E)  None of the choices are correct. 
A)  ($\Sigma$x lxmx)/R0. 
B)  $\Sigma$ $\lambda$nx. 
C)  $\Sigma$ lx mx. 
D)  $\Sigma$ x lx mx. 
E)  None of the choices are correct. A

Question 3

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. D

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

Which of the following equations best represents the per capita rate of increase?

Accepted Answer

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

Question 6

Which of the following are mismatched?

Accepted Answer

A)  nx : mortality rate 
B)  lx : survivorship history 
C)  R0 : net reproductive rate 
D)  mx : average number offspring per individual 
E)  x : age/time interval 
A)  nx : mortality rate 
B)  lx : survivorship history 
C)  R0 : net reproductive rate 
D)  mx : average number offspring per individual 
E)  x : age/time interval

Question 7

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 8

Calculate the generation time given the following population data: R0 = 0.601,r = - 0.05, $\Sigma$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 9

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 10

A group of subpopulations living in spatially isolated patches connected by exchange of individuals among patches is called a(n)

Accepted Answer

A)  micropopulation. 
B)  megapopulation. 
C)  isopopulation. 
D)  allopopulation. 
E)  metapopulation.
Learning Outcome: 10.02.01 Describe the role of dispersal in sustaining a metapopulation. 
A)  micropopulation. 
B)  megapopulation. 
C)  isopopulation. 
D)  allopopulation. 
E)  metapopulation.
Learning Outcome: 10.02.01 Describe the role of dispersal in sustaining a metapopulation.

Question 11

The geometric 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 12

Roland,Keyghobadi,and Fownes found in smaller meadow habitat,the Rocky Mountain Parnassian butterfly

Accepted Answer

A)  has a larger wing span and more likely to disperse out of the patch. 
B)  populations are stable. 
C)  populations are smaller and individuals are more likely to disperse out of the patch. 
D)  population size is more variable. 
E)  None of the choices are correct. 
A)  has a larger wing span and more likely to disperse out of the patch. 
B)  populations are stable. 
C)  populations are smaller and individuals are more likely to disperse out of the patch. 
D)  population size is more variable. 
E)  None of the choices are correct.

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

When using a significance level of 0.05,how often will you reject hypotheses that are actually correct?

Accepted Answer

A)  5% of the time or less 
B)  5% of the time or more 
C)  50% of the time or less 
D)  50% of the time or more 
E)  95% of the time or more 
A)  5% of the time or less 
B)  5% of the time or more 
C)  50% of the time or less 
D)  50% of the time or more 
E)  95% of the time or more

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

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.

Question 17

The 'net reproduction rate' equals

Accepted Answer

A)  ($\Sigma$x lxmx)/R0. 
B)  $\Sigma$ $\lambda$ nx. 
C)  $\Sigma$ lx mx. 
D)  $\Sigma$ x lx mx. 
E)  None of the choices are correct. 
A)  ($\Sigma$x lxmx)/R0. 
B)  $\Sigma$ $\lambda$ nx. 
C)  $\Sigma$ lx mx. 
D)  $\Sigma$ x lx mx. 
E)  None of the choices are correct.

Question 18

The geometric rate of increase cannot be a negative number.

Accepted Answer

A) True 
 B)False

Question 19

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 20

Which of the following indicates a population in decline?

Accepted Answer

A)  R0 = 6.01 
B)  R0 = 0.601 
C)  R0 = 0 
D)  R0 = - 0.601 
E)  R0 = - 6.01 
A)  R0 = 6.01 
B)  R0 = 0.601 
C)  R0 = 0 
D)  R0 = - 0.601 
E)  R0 = - 6.01

Exam 10: Population Dynamics

Fecundity is another term for the net reproductive rate.

The 'mean generation time' of a population equals

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

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

Which of the following equations best represents the per capita rate of increase?

Which of the following are mismatched?

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

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

The age distribution of a population can reveal

A group of subpopulations living in spatially isolated patches connected by exchange of individuals among patches is called a(n)

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

Roland,Keyghobadi,and Fownes found in smaller meadow habitat,the Rocky Mountain Parnassian butterfly

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

When using a significance level of 0.05,how often will you reject hypotheses that are actually correct?

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

Type II survivorship curve indicates

The 'net reproduction rate' equals

The geometric rate of increase cannot be a negative number.

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

Which of the following indicates a population in decline?

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

Socail 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, $\Sigma$ xl_xm_x = 6.4,m_x = 0.96