Hauser Marc D
Harvard U, Peabody Museum, Cambridge, MA.
J Comp Psychol. 1993 Sep;107(3):276-282. doi: 10.1037/0735-7036.107.3.276.
The ontogeny of feeding behavior was explored by making observations of 32 vervet monkey (Cercopithecus aethiops) infants in Amboseli National Park, Kenya. In contrast to adults and juveniles, infants appear to treat all primary food products in their diet as equally valuable. These age-related differences may reflect differences in food preference. To assess social influences, feeding synchrony between mother and infant was explored. From birth to 2 months, infants typically fed asynchronously with respect to their mother's feeding bouts. From 2 to 12 months, however, most infants fed at the same time and on the same food items as their mothers. Among infants, there was a significant positive association between the proportion of synchronous, same food bouts and the probability of survival. Variation among infants in access to resources and encounter rates with predators did not, however, have a significant effect on survival.
通过对肯尼亚安博塞利国家公园的32只东非狒狒（猕猴属埃塞俄比亚种）幼崽进行观察，探究了进食行为的个体发生。与成年和幼年狒狒不同，幼崽似乎将其饮食中的所有主要食物产品视为同等有价值。这些与年龄相关的差异可能反映了食物偏好的差异。为了评估社会影响，研究了母婴之间的进食同步性。从出生到2个月，幼崽通常与其母亲的进食时段不同步进食。然而，从2个月到12个月，大多数幼崽与母亲同时进食相同的食物。在幼崽中，同步、相同食物进食时段的比例与存活概率之间存在显著的正相关。然而，幼崽在获取资源和遭遇捕食者的几率方面的差异对存活没有显著影响。
