Question 1

Based on sexual selection theory, you can predict that parental care in a species will be lower in the sex that ___________.

Accepted Answer

A)  possesses the greatest anisogamy 
B)  possesses elaborate ornaments 
C)  has the higher testosterone level 
D)  produces the most gametes 
E)  invests the most in territory defense 
A)  possesses the greatest anisogamy 
B)  possesses elaborate ornaments 
C)  has the higher testosterone level 
D)  produces the most gametes 
E)  invests the most in territory defense B

Question 2

Sexual selection predicts that females should base their mating decisions on which of the following?

Accepted Answer

A)  A colorful male trait 
B)  A common male trait 
C)  A novel male trait 
D)  A genetic male trait 
E)  A costly male trait 
A)  A colorful male trait 
B)  A common male trait 
C)  A novel male trait 
D)  A genetic male trait 
E)  A costly male trait E

Question 3

The Hamilton-Zuk hypothesis predicts which of the following?

Accepted Answer

A)  High parasite loads reduce the expression of secondary sexual traits. 
B)  Males use primary sexual traits to select mates. 
C)  The strength of sexual selection will vary over time. 
D)  Female choice is a stronger force than mate competition in affecting sexual traits. 
E)  Females can bias the fertilization success of different males. 
A)  High parasite loads reduce the expression of secondary sexual traits. 
B)  Males use primary sexual traits to select mates. 
C)  The strength of sexual selection will vary over time. 
D)  Female choice is a stronger force than mate competition in affecting sexual traits. 
E)  Females can bias the fertilization success of different males. A

Question 4

In what situation can cryptic female choice enhance the fitness of a female?

Accepted Answer

A)  When she mates with one male relative 
B)  When she mates with males that differ in quality 
C)  When she mates with a single low-quality male 
D)  When she mates repeatedly with the same male 
E)  When she must hide from predators while mating 
A)  When she mates with one male relative 
B)  When she mates with males that differ in quality 
C)  When she mates with a single low-quality male 
D)  When she mates repeatedly with the same male 
E)  When she must hide from predators while mating

Question 5

Which of the following is NOT true about the peafowl leks studied by Loyau, Saint Jalme, and Sorci (2007)?

Accepted Answer

A)  Females preferred males with the loudest vocalizations. 
B)  Males with the longest tails were most successful in competing for sites. 
C)  Large individuals were most successful in competing for sites. 
D)  A few males obtained most of the copulations. 
E)  Most, but not all, males in the population defended a display site. 
A)  Females preferred males with the loudest vocalizations. 
B)  Males with the longest tails were most successful in competing for sites. 
C)  Large individuals were most successful in competing for sites. 
D)  A few males obtained most of the copulations. 
E)  Most, but not all, males in the population defended a display site.

Question 6

Define a sex role-reversed species and provide one example. What conditions are required for the evolution of such species?

Accepted Answer

A species in which females com

Question 7

Describe the predictions of Bateman's hypothesis with respect to males and females.

Accepted Answer

Female reproductive success is most stro

Question 8

Male dung beetles use their horn-like projections in aggressive interactions over nesting sites. What data suggested that sexual selection has influenced the evolution of these horns in dung beetles?

Accepted Answer

A)  Horn size was correlated with body size. 
B)  A difference in horn size affected fight outcome. 
C)  An experimental reduction in horn size reduced breeding success. 
D)  An experimental increase in horn size enhanced breeding success. 
E)  Variation in horn size across populations was correlated with breeding success. 
A)  Horn size was correlated with body size. 
B)  A difference in horn size affected fight outcome. 
C)  An experimental reduction in horn size reduced breeding success. 
D)  An experimental increase in horn size enhanced breeding success. 
E)  Variation in horn size across populations was correlated with breeding success.

Question 9

Jaquiéry and colleagues (2009) observed that some calling male tree frogs were more attractive to females while others were not. What benefit did females obtain by mating with attractive males?

Accepted Answer

A)  Their offspring had high genetic diversity. 
B)  Their offspring had high growth rates. 
C)  They reproduced in high-quality territories. 
D)  They experienced low predation risk. 
E)  They had a reduced cost of parental care. 
A)  Their offspring had high genetic diversity. 
B)  Their offspring had high growth rates. 
C)  They reproduced in high-quality territories. 
D)  They experienced low predation risk. 
E)  They had a reduced cost of parental care.

Question 10

Describe the difference between weapons and ornaments. In which sex do these traits most often appear?

Accepted Answer

Weapons are traits used in mal

Question 11

Which of the following is NOT true about the sex-role reversed deep-snouted pipefish?

Accepted Answer

A)  Females possess ornaments. 
B)  Male mate choice occurs. 
C)  Females care for offspring. 
D)  Females compete for males. 
E)  Males become pregnant. 
A)  Females possess ornaments. 
B)  Male mate choice occurs. 
C)  Females care for offspring. 
D)  Females compete for males. 
E)  Males become pregnant.

Question 12

Bateman's hypothesis posits which of the following?

Accepted Answer

A)  Different factors limit the reproductive success of males and females. 
B)  Intersexual selection is stronger than intrasexual selection. 
C)  Isogamy favors intrasexual selection. 
D)  Ornamental traits are more important than weapons. 
E)  Parental investment influences primary sexual characteristics. 
A)  Different factors limit the reproductive success of males and females. 
B)  Intersexual selection is stronger than intrasexual selection. 
C)  Isogamy favors intrasexual selection. 
D)  Ornamental traits are more important than weapons. 
E)  Parental investment influences primary sexual characteristics.

Question 13

Calsbeek & Sinervo (2002) showed that female side-blotched lizards appear to select mates based on territory quality rather than the identity of the male defending it. In this system, explain the direct and indirect material benefits females obtain by such mate choice.

Accepted Answer

Females on high quality territories have

Question 14

How did Rodd and colleagues (2002) evaluate the sensory bias hypothesis in guppies?

Accepted Answer

A)  By examining immune system function of females 
B)  By examining olfactory receptors of females 
C)  By comparing photoreceptors of males and females 
D)  By examining chemoreceptors of males 
E)  By examining color preferences of males and females 
A)  By examining immune system function of females 
B)  By examining olfactory receptors of females 
C)  By comparing photoreceptors of males and females 
D)  By examining chemoreceptors of males 
E)  By examining color preferences of males and females

Question 15

Which of the following would be considered a bourgeois mating tactic?

Accepted Answer

A)  A satellite male 
B)  A sneaker male 
C)  A territorial male 
D)  A conditional male 
E)  A parasitic male 
A)  A satellite male 
B)  A sneaker male 
C)  A territorial male 
D)  A conditional male 
E)  A parasitic male

Question 16

Describe one potential benefit of mate choice copying.

Accepted Answer

If a female cannot distinguish

Question 17

Lande's runaway selection process requires that ___________.

Accepted Answer

A)  genes for a male trait and female preference for the trait are genetically linked 
B)  fast males and females have a fitness advantage over slower males and females 
C)  females prefer to mate with males of a particular phenotype 
D)  males prefer to mate with the most fecund females 
E)  a phenotypic correlation exist between male traits and female mating preferences 
A)  genes for a male trait and female preference for the trait are genetically linked 
B)  fast males and females have a fitness advantage over slower males and females 
C)  females prefer to mate with males of a particular phenotype 
D)  males prefer to mate with the most fecund females 
E)  a phenotypic correlation exist between male traits and female mating preferences

Question 18

Describe two different kinds of direct benefits females can acquire through mate choice. Describe one example of each.

Accepted Answer

Females can acquire resources

Question 19

What data provide support for Fisher's runaway process to explain the evolution of exaggerated male traits?

Accepted Answer

Many studies have shown a gene

Question 20

What research methods did Pomfret and Knell (2006) use to examine the role of sexual selection in dung beetles?

Accepted Answer

A)  An experiment examining female choice of males with different horn sizes 
B)  An experiment that compared the fighting success of males of different body sizes competing for a female 
C)  Observations of mating success of males with differently sized horns 
D)  Observations of female choice of males of different sizes 
E)  An experiment that compared the fighting success of males with differently sized horns competing for a female 
A)  An experiment examining female choice of males with different horn sizes 
B)  An experiment that compared the fighting success of males of different body sizes competing for a female 
C)  Observations of mating success of males with differently sized horns 
D)  Observations of female choice of males of different sizes 
E)  An experiment that compared the fighting success of males with differently sized horns competing for a female

Based on sexual selection theory, you can predict that parental care in a species will be lower in the sex that ___________.

Sexual selection predicts that females should base their mating decisions on which of the following?

The Hamilton-Zuk hypothesis predicts which of the following?

In what situation can cryptic female choice enhance the fitness of a female?

Which of the following is NOT true about the peafowl leks studied by Loyau, Saint Jalme, and Sorci (2007)?

Define a sex role-reversed species and provide one example. What conditions are required for the evolution of such species?

Describe the predictions of Bateman's hypothesis with respect to males and females.

Male dung beetles use their horn-like projections in aggressive interactions over nesting sites. What data suggested that sexual selection has influenced the evolution of these horns in dung beetles?

Jaquiéry and colleagues (2009) observed that some calling male tree frogs were more attractive to females while others were not. What benefit did females obtain by mating with attractive males?

Describe the difference between weapons and ornaments. In which sex do these traits most often appear?

Which of the following is NOT true about the sex-role reversed deep-snouted pipefish?

Bateman's hypothesis posits which of the following?

Calsbeek & Sinervo (2002) showed that female side-blotched lizards appear to select mates based on territory quality rather than the identity of the male defending it. In this system, explain the direct and indirect material benefits females obtain by such mate choice.

How did Rodd and colleagues (2002) evaluate the sensory bias hypothesis in guppies?

Which of the following would be considered a bourgeois mating tactic?

Describe one potential benefit of mate choice copying.

Lande's runaway selection process requires that ___________.

Describe two different kinds of direct benefits females can acquire through mate choice. Describe one example of each.

What data provide support for Fisher's runaway process to explain the evolution of exaggerated male traits?

What research methods did Pomfret and Knell (2006) use to examine the role of sexual selection in dung beetles?

The Science of Animal Behavior

Methods for Studying Animal Behavior

Evolution and the Study of Animal Behavior

Behavioral Genetics

Sensory Systems and Behavior

Communication

Learning, Neuroethology, and Cognition

Foraging Behavior

Antipredator Behavior

Dispersal and Migration

Habitat Selection, Territoriality, and Aggression

Mating Systems

Parental Care

Sociality

Cooperative Behavior

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Exam 12: Mating Behavior

Based on sexual selection theory, you can predict that parental care in a species will be lower in the sex that ___________.

Sexual selection predicts that females should base their mating decisions on which of the following?

The Hamilton-Zuk hypothesis predicts which of the following?

In what situation can cryptic female choice enhance the fitness of a female?

Which of the following is NOT true about the peafowl leks studied by Loyau, Saint Jalme, and Sorci (2007)?

Define a sex role-reversed species and provide one example. What conditions are required for the evolution of such species?

Describe the predictions of Bateman's hypothesis with respect to males and females.

Male dung beetles use their horn-like projections in aggressive interactions over nesting sites. What data suggested that sexual selection has influenced the evolution of these horns in dung beetles?

Jaquiéry and colleagues (2009) observed that some calling male tree frogs were more attractive to females while others were not. What benefit did females obtain by mating with attractive males?

Describe the difference between weapons and ornaments. In which sex do these traits most often appear?

Which of the following is NOT true about the sex-role reversed deep-snouted pipefish?

Bateman's hypothesis posits which of the following?

Calsbeek & Sinervo (2002) showed that female side-blotched lizards appear to select mates based on territory quality rather than the identity of the male defending it. In this system, explain the direct and indirect material benefits females obtain by such mate choice.

How did Rodd and colleagues (2002) evaluate the sensory bias hypothesis in guppies?

Which of the following would be considered a bourgeois mating tactic?

Describe one potential benefit of mate choice copying.

Lande's runaway selection process requires that ___________.

Describe two different kinds of direct benefits females can acquire through mate choice. Describe one example of each.

What data provide support for Fisher's runaway process to explain the evolution of exaggerated male traits?

What research methods did Pomfret and Knell (2006) use to examine the role of sexual selection in dung beetles?

The Science of Animal Behavior

Methods for Studying Animal Behavior

Evolution and the Study of Animal Behavior

Behavioral Genetics

Sensory Systems and Behavior

Communication

Learning, Neuroethology, and Cognition

Foraging Behavior

Antipredator Behavior

Dispersal and Migration

Habitat Selection, Territoriality, and Aggression

Mating Systems

Parental Care

Sociality

Cooperative Behavior

Filters