Question 1

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  False

Question 2

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

Accepted Answer

A) True 
 B)False  False

Question 3

The geometric rate of increase cannot be a negative number.

Accepted Answer

A) True 
 B)False  True

Question 4

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 5

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 6

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 7

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 8

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 9

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 10

Which of the following cannot be determined using a fecundity schedule combined with a life table?

Accepted Answer

A) per capita rate of increase 
B) net reproductive rate 
C) mean generation time 
D) dispersal rates 
E) geometric rate of increase 
A) per capita rate of increase 
B) net reproductive rate 
C) mean generation time 
D) dispersal rates 
E) geometric rate of increase

Question 11

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

Question 12

Individuals born during a specified time period are grouped as a __________________________.

Accepted Answer

The answer of Individuals born during a specified time period...

Question 13

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 14

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.

Question 15

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 16

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 17

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 18

Fecundity is another term for the net reproductive rate.

Accepted Answer

A) True 
 B)False

Question 19

Humans would best be represented by which of the following survivorships curves?

Accepted Answer

A) III 
B) II 
C) I 
D) IV 
E) None of the choices are correct. 
A) III 
B) II 
C) I 
D) IV 
E) None of the choices are correct.

Question 20

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

Exam 10: Population Dynamics

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

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

The geometric rate of increase cannot be a negative number.

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

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 equations best represents the per capita rate of increase?

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

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)

Which of the following cannot be determined using a fecundity schedule combined with a life table?

Which of the following indicates a population in decline?

Individuals born during a specified time period are grouped as a __________________________.

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

The 'mean generation time' of a population equals

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

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

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

Fecundity is another term for the net reproductive rate.

Humans would best be represented by which of the following survivorships curves?

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

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