Individual and group effects on early caregiver-infant relationships in red-bellied tamarin monkeys

摘要: Abstract The relationship between changes in caregiver-caregiver and caregiver-infant behaviour was studied during the infants' first month 10 family groups of red-bellied tamarins, Saguinus labiatus, with twin infants. With infants a given age, fathers generally spent higher proportion time carrying per infant than did mothers, but most cases these differences were not significant. Mothers carried significantly more older siblings at beginning end month. infants, caregivers started to rub off they carrying, so that spend some all caregivers. Each caregiver initiated by retrieving an from another caregiver, sometimes retained against retrieve attempt order continue it. Before off, positively correlated percentage attempts other against, and, strongly, value their own number retains minus them. These results indicate competition care for has direct effect on early development each within group.