Observational and experimental studies on the influence of social status on feeding strategies

社会地位对喂养策略影响的观察和实验研究

基本信息

批准号：
02640509
负责人：
SUGIYAMA Yukimaru
金额：
$ 1.02万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1992
项目状态：
已结题

项目摘要

Experiment was conducted on the Japanese monkey group of the Koshima group in order to know the difference of intake process of artificial food among different age,rank classes.Soy beans were given widely scattered on the ground,and individual monkeys were counted to pick up beans. Young individuals (less than 5 years)showed advantageous intake of given beans than elders when a amount of beans were dived and given in several times than the same amount being given at one time. This result indicates that younger individuals feeding is adaptive to many scattered small food patches,than limited numbers of big patches. The high ranking females showed high intake of given beans,while females of other rank classes did not show rank dependent advantageous feeding. Different class adopted different strategies of feeding. And second higher rank class females showed less adaptive strategies than the low rank class females. This corresponded low reproductive success of second high rank class females in the Koshima group. Population changes of monkeys of Takasakiyama were studied since 1971 as a model of artificially fed groups. We analyzed the accumulated data. The Takasakiyama groups depended2/3(-1/2)of their food intake of the artificially given food. The amount of given food strongly showed the direct relationship with the birth rates of the groups. Birth rates significantly differed between rank classes of females. Lower class females made much effort to prolong their feeding duration, while their intake did not reach the feeding amount of high rank female class despite their efforts. Depending these studies, models of population and social dynamics of different groups living in wide varieties of environment,from broad leaf ever green Yakushima habitat to the snowy northern,tohoku, districts.

为了知道不同年龄之间人造食品的摄入量的差异，级别类别。大量的豆被广泛分散在地面上，并将单个猴子计数以捡起豆类，因此对Koshima组的日本猴子组进行了实验。当豆类在潜水和给予的豆类数量时，年轻人（少于5岁）比长老表现出优势的给定豆类摄入量。该结果表明，与有限数量的大斑块相比，年轻的喂养年轻人适应许多分散的小食物斑块。高排名的女性显示出对给定豆类的高摄入量，而其他等级类别的女性并未显示出依赖等级的有利喂养。不同的班级采用了不同的喂养策略。与低级级女性相比，第二级女性的适应性策略较少。这对应于Koshima组的第二高等级女性的繁殖成功率低。自1971年以来，研究了高萨山猴的种群变化，作为人工喂养群体的模型。我们分析了累积数据。 Takasakiyama小组将其人为食物的食物摄入2/3（-1/2）。给定食物的数量强烈表明与小组的出生率直接关系。女性等级类别之间的出生率显着差异。下层女性付出了很多努力来延长喂养持续时间，而摄入量仍未达到高级女性班级的喂养量。根据这些研究，生活在各种环境中的不同群体的人口模型和社会动态模型，从宽阔的叶子绿叶雅库希马栖息地到雪地北部，北部，北部地区。