Exam 15: Parental Care and Mating Systems

If you are a male brown songlark nestling (Cinclorhamphus cruralis), a polygynous species that exhibits strong sexual dimorphism in body size, your mother will probably feed you

Which of the following combinations most appropriately describes who typically provides care for offspring for that taxonomic group?

Young attempting to obtain resources that parents prefer to distribute to other members of the current brood is likely to result in

Polyandry is now known to

Féron and Gouat (2007) found that in mound-building mice (Mus specilegus), the more time a male spent in the nest, the shorter the interval until the next litter. This appears to be a way that both the male and female partners can benefit by exhibiting

Huk and Winkel (2006) studied pied flycatchers (Ficedula hypoleuca) and found that their data did not support the sexy son hypothesis. This appeared to be due primarily to

Mating systems are frequently defined in terms of the number of copulatory partners per individual per breeding season. When both males and females mate with multiple individuals promiscuously, such as system is referred to as

Mating systems are frequently defined in terms of the number of copulatory partners per individual per breeding season. When a male and female have only a single mating partner per breeding season, such as system is referred to as

Ecological factors, such as resource quality and distribution and the availability of receptive mates, may influence the mating patterns displayed even within a single species. For example, black howler monkeys (Alouatta pigra), found to be primarily polygynous in a deciduous forest habitat, when studied in a riparian habitat which is much more lush, were found to be

Male California mice (Peromyscus californicus)

Mattila and Seeley (2007) studied honey bees of the genus Apis, social insects that exhibit polyandry. They established colonies of honey bees that were either genetically diverse (the queen was artificially inseminated with sperm from 15 different drones) or genetically uniform (the queen was inseminated with the same volume of sperm but from a single drone). They found that genetically diverse colonies

Which of the following would NOT be an example of direct parental care?

The notion that the parents have some insurance in case some of the eggs or offspring fail to develop is one proposed possible explanation for why a parent may

At Vernor and Willson's (1966) polygyny threshold, from a fitness standpoint,

In domestic piglets (Sus scrofa) the most intense sibling competition occurs

When males defend symbolic territories that are often located at traditional display sites, this is known as

Which of the following would NOT be an example of indirect parental care?

Mating systems are frequently defined in terms of the number of copulatory partners per individual per breeding season. When some males copulate with more than one female during the breeding season, such as system is referred to as

When biparental care is necessary or at least important for offspring survival or when females widely dispersed, the mating system that may be favored is

Several authors have suggested an association between