Environmental variation and developmental rate among free ranging yellow baboons (Papio cynocephalus)
作者:
Lauren M. Wasser,
Samuel K. Wasser,
期刊:
American Journal of Primatology
(WILEY Available online 1995)
卷期:
Volume 35,
issue 1
页码: 15-30
ISSN:0275-2565
年代: 1995
DOI:10.1002/ajp.1350350103
出版商: Wiley Subscription Services, Inc., A Wiley Company
关键词: development;rate;environmental variation;compensatory processes;infant;baboon
数据来源: WILEY
摘要:
AbstractBehavioral development was observed for the first 3 months of life on 18 infants from three troops of yellow balloons (Papio cynocephalus) in Mikumi National Park, Tanzania. Developmental rates were determined for each subject on six major behaviors using the slope from regression equations performed on developmental functions changes in behavior with age. These slopes were examined statistically for associations with social and physical variables that were hypothesized to influence developmental rates. Results showed that faster rates of development were significantly associated with certain environmental and social conditions. Infants born late in their cohort, infants born in a more physically immature state, infants living in a large troop, and female infants of low ranking mothers all had significantly faster rates of development than infants at the other extreme in these categories. These results are interpreted as evidence for developmental processes that compensate for environmental or physical conditions that negatively influence survivorship. © 1995 Wiley‐Liss, I
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