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- Title
Macaca thibetana at Mt. Emei, China: I. A Cross-Sectional Study of Growth and Development.
- Authors
Qikun Zhao, D. Jeffrey; Ziyun Deng, D. Jeffrey
- Abstract
Six free-ranging groups of Macaca thibetana were studied at Mt. Emei, in southwest China. Patterns of growth and development observed during the study are described for this species for the first time. Data were collected mainly during the birth season of 1986. Food handouts made possible the measurement of body weight and sitting height. Changes in fur color and growth of forehead hair were noted. Dark hair appeared on the broad white forehead of infants at the end of the third month. A triangular patch formed about 30 days later, and full cover developed within 4.5 to 5 months. For the first 1 or 2 weeks, the fur was blackish; it then became yellow, and by the age of 3.5-4.5 months, it was brown or blackish, i.e., adult color. Growth data on body weight and sitting height for different age-sex classes were collected. For adult males, body weight was 18 kg, sitting height (SH) 55 cm, and ponderal index 33. For adult female, body weight was 13 kg, sitting height 47 cm, and ponderal index 27. Females were considered to be adult at age 5 years.
- Subjects
ANTHROPOMETRY; WEIGHT gain; BODY weight; LABOR (Obstetrics); FEMALES; MACAQUES
- Publication
American Journal of Primatology, 1988, Vol 16, Issue 3, p251
- ISSN
0275-2565
- Publication type
Article
- DOI
10.1002/ajp.1350160306