5 Written questions
5 Matching questions
- Ultimate cause of Dispersal
- Are there costs and benefits to living in a society?
- Inbreeding Depression
- a Migratory movements take an animal out of its home range and
habitat type and is triggered by proximal cues, such as photoperiod,
that are linked to ultimate factors, such as shortage of resources
- b Yes
- c It manifests itself through reduced reproductive success and
survival of offspring from closely related parents compared to
offspring of unrelated parents.
It is caused by increased homozygosity of the inbred offspring
and the resulting expression of deleterious recessive alleles.
- d Behavior that is potentially costly to the individual but beneficial to others
- e the avoidance of inbreeding
5 Multiple choice questions
- Wolves and lions are able to capture large species of prey - such
as moose or Cape Buffalo - that would not be possible for individuals.
- predators could approach within 3 m of solitary individuals but no closer than 300 m to grouped individuals before waves of alarm calls swept through the colony
- If two animals reared from birth under identical environments
differ in habitat preference when adults, the conclusion would be
that the differences resulted from hereditary factors
- White-footed mice frequently form communal nests in winter to huddle and conserve energy. Also Bats .
This benefit does not necessarily lead to organized social groups.
- - a sense of direction (some form of compass)
- a sense of location (understand where it is starting from)
5 True/False questions
Where would a map be stored in the brain → The hippocampus
The reproductive success of males depends on? → the number of females they can mate with and so are likely to range farther than females searching for mates.
Cooperative Rearing of Young in Carnivores (Lions) → In mongooses and meerkats, subordinate females help rear the young of the dominant females.
Allee Effect → 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)
Big Horn Sheep reason for grouping → 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.