By Nancy G. Solomon, Jeffrey A. French
Cooperative breeding refers to a social method within which participants except the fogeys offer take care of the offspring. due to the fact contributors hold up breeding and put money into the offspring of others, cooperative breeding poses a problem to a Darwinian rationalization of the evolution of social habit. The individuals to this ebook discover the evolutionary, ecological, behavioral, and physiological foundation of cooperative breeding in mammals. The ebook features a choice of chapters by way of the prime researchers within the box, and it's the first publication devoted completely to the examine of mammalian cooperative breeding.
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Goldizen and Terborgh (1989), Baker, Dietz, and Kleiman (1993), and Rylands (1996) have dealt with the issue of philopatry in some detail. For the present discussion, I will deal primarily with the question of inheritance of a breeding position. Three field studies provide data on the incidence of individuals inheriting the breeding position in a group after the death or disappearance of the breeder of the same sex (Goldizen & Terborgh 1989; Ferrari & Diego 1992; Baker et al. 1993). The sample sizes were generally small, making it difficult to assess the relative impact of staying versus dispersing.
2). 2. 35 Price 1992b tamarins were less likely to forage while carrying infants. , a mother and father alone) would be unable to meet their foraging needs while sharing the care of infants. This argument assumes that the relationship between infant carrying and foraging is invariant, which may or may not be true. However, it does provide a basis for predictions regarding the cost of infant care in general and alloparenting in particular. Price (1992b) found a similar relationship between foraging and infant transport in captive cotton-top tamarins; animals that were carrying infants were less likely to forage.
Juvenile primates have frequently been described as being inept at carrying, displaying poor carrying positions and frequently being intolerant of the infants on their backs. Experience seems to improve infant handling in other primates, such as vervet monkeys (Meaney, Lozos, & Stewart 1980). Whereas juveniles, Parental Behavior and Evolution of Alloparental Care 17 which generally carry infants infrequently, may be inept, we have found that older (subadult and adult), inexperienced alloparents were as likely to retrieve infants adeptly and carry them as frequently as experienced alloparents (Tardif et al.
Cooperative Breeding in Mammals by Nancy G. Solomon, Jeffrey A. French