Chapman C A, Fedigan L M
Department of Biology, McGill University, Montreal, Que, Canada.
Folia Primatol (Basel). 1990;54(3-4):177-86. doi: 10.1159/000156442.
The feeding patterns of three neighboring groups of Cebus capucinus were documented over a 3-year period in Santa Rosa National Park, Costa Rica. We describe the diets of the three groups and examine whether dietary differences between groups could be attributed to environmental differences in food abundances, to differences in the profitability of what was available or to learned local traditions. Diets were variable among groups; group A primarily ate fruit (81.2% of feeding time) and spent little time eating insects (16.9%), while group C was more heavily reliant on insects (44.3%) and ate less fruit (53.0%). Group B had a diet that was somewhat intermediate (69.8% fruit, 29.0% insects). By measuring the densities of all major plant foods, we were able to determine that many of the dietary differences between groups could not be attributed to simple measures of food abundance, but we could not distinguish between the food profitability hypothesis and local tradition hypothesis.
在哥斯达黎加的圣罗莎国家公园，对三组相邻的白喉卷尾猴的觅食模式进行了为期三年的记录。我们描述了这三组猴子的饮食，并研究了组间饮食差异是否可归因于食物丰富度的环境差异、可获取食物的盈利能力差异或习得的当地传统。各组的饮食各不相同；A组主要吃水果（占进食时间的81.2%），花很少时间吃昆虫（16.9%），而C组更依赖昆虫（44.3%），吃的水果较少（53.0%）。B组的饮食处于中间水平（69.8%为水果，29.0%为昆虫）。通过测量所有主要植物性食物的密度，我们能够确定组间的许多饮食差异不能归因于食物丰富度的简单衡量指标，但我们无法区分食物盈利能力假说和当地传统假说。
