5 Written Questions
5 Matching Questions
- Scale color denotes
- Natal Dispersal in Mammals
- Groups with female dispersal
- Natal Dispersal
- a In many species of mammals, members of one sex disperse
while the other sex are philopatric (breeding near the place they were born). Among mammals it is usually the male that disperses.
- b Distant landmarks have been demonstrated to be used by some
- c means leaving the site of birth or
social group (emigration), traversing unfamiliar habitat, and
settling into a new area and/or social group (immigration).
- d Pikas,kangaroo rats, chimpanzees, African wild dogs and whitelined
- e how old the seafloor is in millions of years.
5 Multiple Choice Questions
- Populations that have survived episodes of inbreeding in the past
may tolerate current inbreeding with relatively few ill effects. This is likely because deleterious recessive alleles already have been
selected out of the population i.e Cheetah
- requires a mental map of
the terrain but does not require a compass. In principal it could be
used for longer trips
- In prairie dog colonies the amount of agonistic behavior per individual increases as a function of group size
- Among frugivorous primates, the amount of time spent foraging per day increases as a function of group size and potentially sets an
upper limit of group size.
- Food supply does not drive this migration, but it is suggested that it
is to minimize heat loss in the newborns
5 True/False Questions
Inbreeding effects depend on → The degree of cooperation
ranges from none to complex coalitions and alliances. In some species, kinship is important but in others coalitions among nonrelatives are also common, as in hamadryas baboons and chimpanzees.
Musk Ox → includes trips outside the
home range, usually in search of mating opportunities or suitable
habitat. This type of movement includes natal dispersal.
Pinniped Migration → Many species of seals and sea lions migrate thousands of kilometers each year from island breeding and molting sites to feeding areas.
How much time do offspring spend with their parents? → The hippocampus
Male Dispersal → the "queen" reproduces, mother and young are fed
(but not nursed) by male and female adults of the worker caste,
another caste kept the young warm . males of this caste bred with the queen.