Turnquist Jean E, Kessler Matthew J
Department of Anatomy, University of Puerto Rico, School of Medicine, San Juan, Puerto Rico.
Caribbean Primate Research Center, University of Puerto Rico, Medical Sciences Campus, Sabana Seca, Puerto Rico.
Am J Primatol. 1989;19(1):1-13. doi: 10.1002/ajp.1350190102.
This paper presents comprehensive baseline data on body size and proportion of 661 (315 male, 346 female) free-ranging Cayo Santiago rhesus monkeys (Macaca mulatta) ranging in age from 24 hours to 25 years. All animals were born and raised in the free-ranging colony on Cayo Santiago, and exact ages were known for all. Tabular data from this cross-sectional study are provided to enable comparisons with data from laboratory, wild, and other captive populations of rhesus monkeys, as well as with other species. Despite the extensive literature on rhesus monkey behavior and biology, to date published accounts of its morphometrics have been limited to only a few measurements from animals of unknown age, small sample sizes, or caged colonies. Results of this study showed a distinct intraspecific pattern for body proportions throughout the life cycle. Relative linear increases in overall body proportions of maturing animals appeared to be from greatest to least in the trunk, hindlimb, and forelimb, respectively. Within the limbs, allometric scaling appeared to be fastest in the proximal segment and slowest in the distal segment. Males and females differed in the duration of growth, and gender dimorphism was associated primarily with differences in size rather than proportion. Although the primary purpose of this paper is to present numerical data on the Cayo Santiago colony, the results are compared with previous studies of both laboratory and free-ranging rhesus monkeys.
本文呈现了661只(315只雄性,346只雌性)自由放养的圣地亚哥岛恒河猴(猕猴)的体型和比例的全面基线数据,这些猴子年龄从24小时到25岁不等。所有动物均在圣地亚哥岛的自由放养群体中出生和长大,且所有动物的确切年龄均已知晓。提供了这项横断面研究的表格数据,以便与来自实验室、野生和其他圈养恒河猴种群的数据以及其他物种的数据进行比较。尽管关于恒河猴行为和生物学的文献众多,但迄今为止,已发表的其形态测量学报告仅限于对年龄未知、样本量小或圈养群体的少数几只动物的测量。本研究结果显示了整个生命周期内身体比例的明显种内模式。成熟动物总体身体比例的相对线性增长似乎分别在躯干、后肢和前肢中从最大到最小。在四肢中,异速生长缩放似乎在近端段最快,在远端段最慢。雄性和雌性在生长持续时间上存在差异,性别二态性主要与大小差异而非比例差异有关。尽管本文的主要目的是呈现圣地亚哥岛群体的数值数据,但还是将结果与之前对实验室和自由放养恒河猴的研究进行了比较。