The costs of infant carrying in captive cotton‐top tamarins
作者:
Eluned C. Price,
期刊:
American Journal of Primatology
(WILEY Available online 1992)
卷期:
Volume 26,
issue 1
页码: 23-33
ISSN:0275-2565
年代: 1992
DOI:10.1002/ajp.1350260106
出版商: Wiley Subscription Services, Inc., A Wiley Company
关键词: Saguinus oedipus;helping behavior;communal rearing
数据来源: WILEY
摘要:
AbstractMarmosets and tamarins have a communal rearing system in which all group members help to care for the twin infants characteristic of this family of primates. Helpers are likely to incur time and energy costs by contributing to infant care. Predictions that cotton‐top tamarin (Saguinus oedipus) helpers would change their behavior when carrying infants because of reduced mobility and/or a need for increased vigilance were tested in a captive colony. Tamarins carrying an infant spent significantly less time feeding, foraging, moving, or engaging in social activities such as grooming than they did when not carrying. Frequencies of scratching, autogrooming, and scent marking were significantly reduced in carriers, suggesting that their mobility was reduced. However, carriers were significantly less likely to be vigilant (measured by direction of gaze) than when not carrying. Further observations showed that carriers spent more time in concealed areas than they did when not carrying and were probably therefore adopting a cryptic strategy to reduce predation risks to themselves and to infants. These results demonstrate that tamarin helpers pay costs by carrying infants. Some possible compensating benefits are indicate
点击下载:
PDF
(808KB)
返 回