5 Written questions
5 Matching questions
- The reproductive success of males depends on?
- Most complex social organizations are in what species?
- Pinniped Migration
- Male Dispersal
- a Behavior that is potentially costly to the individual but beneficial to others
- b Because of the prevalence of polygyny, and associated tendency for males to disperse as they reach maturity, adult males are generally not related to other adults in the group. Males leave before they reach the age of maturity (sexually) and fathers leave before their daughters reach the age of maturity
- c Carnivores, Cetaceans, and Primates
- d the number of females they can mate with and so are likely to range farther than females searching for mates.
- e Many species of seals and sea lions migrate thousands of kilometers each year from island breeding and molting sites to feeding areas.
5 Multiple choice questions
- Male-male competition, mate acquisition, protection of young cubs, inbreeding avoidance
- Musk oxen form lines of defense
against wolf attacks.
- isolated patches of rock debris
- males leave (usually
before 4 years old), to become nomads or form coalitions that take
over new prides. Competition with other males is important as
most departures occur when a new coalition takes over. Some
males do leave voluntarily.
- Choice of a habitat may be limited by:
• accessibility (islands versus mainland)
• behavior patterns (i.e., prefer trees to grasslands)
• allelopathic agents (plant toxins)
• abiotic factors (temperature, moisture, light, nutrients)
5 True/False questions
Causes of Dispersal at Proximal Level → Because of the prevalence of polygyny, and associated tendency for males to disperse as they reach maturity, adult males are generally not related to other adults in the group. Males leave before they reach the age of maturity (sexually) and fathers leave before their daughters reach the age of maturity
Frugivorous primate colonies → Tend to be large and have large brains
African Wild Dogs → When a mammal emits an alarm call, the caller is more likely to fall prey to the predator. The predator might abandon the hunt since they've been detected (caller is selfish) Other individuals may benefit (altruism)
Causes of Dispersal at ultimate level → the reasons may not be so immediately apparent
Matrilineally → most mammalian social systems are arrange matrilinearlly; mothers and their offspring may stay together and groups are this composed of mothers, daughters, aunts, and nieces