L6 - Paternal Care

Question 1

Reproductive Effort

Answer 1

• can be allocated to parenting OR mating effort

- male mammals invest more in mating effort, but much variation in primates

Question 2

Intersexual Competition

Answer 2

-effort invested in traits to improve attractiveness to the opposite sex

Question 3

Intrasexual Competition

Answer 3

• intimidating, deterring or defeating rival to secure mates
• male aggression

Question 4

Parental Effort/Investment

Answer 4

• investment in offspring at cost to a parent’s ability to invest in other components of fitness
• pre-natal investment (nest preparation, egg incubation, nest guarding)
• post-natal investment (provisioning, protection)

Question 5

Direct vs. Indirect Paternal Care

Answer 5

• direct: provisioning, direct care

- indirect: protection

Question 6

Direct vs. Indirect Paternal Care

Answer 6

• direct: provisioning, direct care

- indirect: protection

Question 7

Direct care is most common when there is…

Answer 7

1. lack of extrasomatic wealth
2. high female contribution to diet
3. low levels of polygyny

Question 8

Father absence

Answer 8

• Industrialized populations: negative outcomes. Reduced care and financial support
• Non-industrialized: less research, mixed evidence

Question 9

Paternal investment may be more motivated by…

Answer 9

maintaining high female reproductive rate rather than keeping kids alive