Sociology of the feeding strategy of Japanese monkeys

日本猴子饲养策略的社会学

基本信息

批准号：
61540474
负责人：
SUGIYAMA Yukimaru
金额：
$ 0.96万
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：
1986
资助国家：
日本
起止时间：
1986 至 1987
项目状态：
已结题

项目摘要

In order to re-examine social behavior of Japanese monkeys in relation to the feeding strategy, studies were conducted at Kinkasan, Takasakiyama, Koshima, and Ryozenyama.1. The monkeys of the Kinkasan troop increased number of food patches to visit in a day, and expanded the duration of feeding time against the food shortage in winter. However, difference was not found for these activities depending on the difference of dominance rank.2. Population parameters of Takasakiyama troops remarkably decreased since 1975 when artificial food supply have been much reduced. This fact shows that food intake directly affects reproductive succes of monkeys. The amount of intake of artificial food showed difference for difference of dominance rank among matri-lines, and females of higher rank showed high reproductive success than those of lower rank. However, the preliminary results showed no difference of the amount of food intake in the forest depending on rank difference.3. Artificial food supply … More for the Koshima troop is reduced minimally, only for the facilitation of observation. The longitudinal change of dominance rank among females was examined in relation to their reproductive success, which was low for lower ranking females among the highest matri-line. The reason for their low reproductive success was analyzed. That is, they were frequently attacked in aggressive interactins, or they showed most unstable dominance rank; they showed drastic drop of dominance rank and high mortality rate after drop of rank. The difference of rank strongly affected their social attitude and their feeding strategy.4. The reproductive success of Ryozenyama troop increased for lower ranking females after division of the mother troop into two, one consisting of higher ranking kins and the other lower ranking. The inferior feeding condition of lower kins must have changed to the same condition with that of the higher kins after the troop division.The present studies indicate that the difference of reproductive success depending on difference of dominance rank is much enhance in the artificial condition, and that it is much reduced in the natural condition. Less

为了重新检查日本猴子与喂养策略有关的社会行为，在金卡桑，高萨基山，科希马和ryozenyama.1进行了研究。金卡桑部队的猴子每天增加了食物斑块的数量，并扩大了喂食时间的持续时间，以防止冬季的粮食短缺。但是，根据优势等级的差异，没有发现这些活动的差异。2。自1975年人造粮食供应大大减少以来，高萨山部队的人口参数大幅下降。这一事实表明，食物摄入直接影响猴子的生殖成功。人造食物的摄入量显示出与较低等级相比，MATRI线之间的主导地位差异和较高级别的女性的差异。但是，初步结果表明，根据等级差异，森林中食物摄入量没有差异。3。人造食品供应…更多的Koshima部队的供应最少减少，仅用于观察的设施。在女性的生殖成功方面，对女性的纵向变化进行了纵向变化，这对于最高的矩阵线中的女性排名较低。分析了其繁殖成功率低的原因。也就是说，它们经常在激进的互动蛋白中受到攻击，或者表现出最不稳定的优势等级。他们表现出巨大的优势等级下降和排名下降后的高死亡率。等级的差异强烈影响了他们的社会态度和喂养策略。4。在母部部队分为两分之后，Ryozenyama部队的生殖成功增加了较低的女性，其中一个由较高的亲属和另一个较低的排名组成。在部队划分后，下属的下属的下属必须改变与较高亲属的状况。目前的研究表明，在人造条件下，取决于优势等级的差异，成功的差异大大提高，并且在自然状态下它会大大降低。较少的