Chapter 8: Behavioral Ecology

Question 1

Behaviors

Answer 1

1. Can be identified and measured
2. Have evolutionary histories
3. Shaped by natural selection
4. Close to related species

Question 2

Optimal Foraging Theory

Answer 2

Proposes that animals maximize the amount of energy acquired per unit of feeding time

Question 3

Male Ornaments

Answer 3

Bright colors

Question 4

Male Armaments

Answer 4

Weapons

Question 5

Sexual Selection

Answer 5

Males use weapons and ornaments to compete against other males of the same species by using either force or charm

Question 6

Male-male competition for females

Answer 6

Males with the largest size, strength, and weaponry typically win battles and sire more offspring

Question 7

Female Choice

Answer 7

Female preference for attractive and extravagant male triats cause these triats to become increasingly common

Question 8

Handicap Hypothesis

Answer 8

Prefer male traits indicative of quality, viability, or health because their offspring will inherit these qualities

Question 9

Sexy sons hypothesis

Answer 9

Prefer male trait that is sexually attractive, sons inherit sexual attractiveness and daughters inherit preference for sexually attractive trait

Question 10

Social Strength

Answer 10

1. Group defense and offense
2. Early predator detection