Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 51.3, Problem 2CC
WHAT IF? Ø Suppose an infection in a common side-blotched lizard population killed many more males than females. What would be the immediate effect on male competition for reproductive success?
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Mating success
Reproductive success
Mating success
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Reproductive success
15
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60
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40
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6.
20
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3.
15
30
30
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20
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Number of mates
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Number of offspring
0 1 2 34
Number of mates
0 40 80 120
Number of offspring
Figure 2. Distributions showing variation in mating and reproductive success in male (upper) and
female (lower) of Rough-Skinned Newts (left) and Broad-nosed Pipefish (right).
3. Which species would you predict would exhibit the greatest degree of sexual dimorphism? Use
sexual selection theory to support your answer.
Mating success
Reproductive success
Mating success
80
80
Reproductive success
15
12
60
60
12
40
40
6.
20
20
3.
15
30
30
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6.
20
20
4
10
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2.
0 1 2 3 4 5
Number of mates
0 100 200 300
Number of offspring
0 1 2 34
Number of mates
0 40 80 120
Number of offspring
Figure 2. Distributions showing variation in mating and reproductive success in male (upper) and
female (lower) of Rough-Skinned Newts (left) and Broad-nosed Pipefish (right).
2. In which of the two species would you predict the costs of reproduction between males and
females is more similar and why?
Number of females Number of males
Chapter 51 Solutions
Campbell Biology
Ch. 51.1 - WHAT IF? Suppose you exposed various fish species...Ch. 51.1 - MAKE CONNECTIONS How is the lunar-linked rhythm...Ch. 51.1 - How might associative learning explain why...Ch. 51.2 - Prob. 1CCCh. 51.2 - Prob. 2CCCh. 51.2 - Why does the mode of fertilization correlate with...Ch. 51.3 - MAKE CONNECTIONS Balancing selection can maintain...Ch. 51.3 - WHAT IF? Suppose an infection in a common...Ch. 51.3 - Prob. 3CCCh. 51.4 - Prob. 1CC
Ch. 51.4 - Prob. 2CCCh. 51.4 - How is migration based on circannual rhythms...Ch. 51 - Prob. 51.1CRCh. 51 - In some spider species, the female eats the male...Ch. 51 - Prob. 51.3CRCh. 51 - Prob. 51.4CRCh. 51 - Prob. 1TYUCh. 51 - Prob. 2TYUCh. 51 - Female spotted sandpipers aggressively court males...Ch. 51 - Prob. 4TYUCh. 51 - Although many chimpanzees live in environments...Ch. 51 - Prob. 6TYUCh. 51 - Level 3: Synthesis/Evaluation 7. DRAW IT You are...Ch. 51 - EVOLUTION CONNECTION We often explain our behavior...Ch. 51 - SCIENTIFIC INQUIRY Scientists studying scrub jays...Ch. 51 - SCIENCE, TECHNOLOGY, AND SOCIETY Researchers are...Ch. 51 - WRITE ABOUT A THEME: INFORMATION Learning is...Ch. 51 - SYNTHESIZE YOUR KNOWLEDGE Acorn woodpeckers...
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