MODIFICATION OF EARLY BEHAVIOUR AND REPRODUCTIVE BEHAVIOUR IN THE PROCESS OF DOMESTICATION

驯化过程中早期行为和生殖行为的改变

基本信息

批准号：
62450016
负责人：
TSUJI Keiichiro
金额：
$ 2.56万
依托单位：
NAGOYA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1987
资助国家：
日本
起止时间：
1987 至 1988
项目状态：
已结题

项目摘要

this study was to investigate the effect of domestication upon the early and reproductive behaviours of the house musk shrew Suncus murinus of the order Insectivora. Selection of the adequate animal species, time and labour necessary for the follow-up, and cooperative relations among researchiers are condition essential for this sort of studies. Due to this,only a few studies have so far-een reported. However, this line of approach is expected to contribute to disclosing the intraspacies variation of adaptive behaviour and to provide us with the basic information related to the behaviour evolution.Wild shrews were trapped in Tarama Island, Okinawa twice for this project term. The captured animals were transferred to our animal laboratory and bred there for domestication. However, we failed in obtaining the related data enough for the analysis of the domestication effect for this term, because the domestication was not so successful.We reported the data which we had collected for nine years (1980-1988) of our trapping in Tarama and breeding in the laboratory. As the data shows, the wild population has not been decreasion so markedly as was estimated, although the habitat size of high density has been reducing. However, the wild animals from Tarama are hard to breed, as compared with other lines, which has made its domestication less successful. Housing conditions and breeding procedure should be improved in the further study.Caravaning and mating behaviours were observed with the domesticated shrews and basic traits of the two behaviours were described.

本研究旨在调查驯化对食虫目麝香鼩早期和繁殖行为的影响。选择足够的动物种类、后续所需的时间和劳动力以及研究人员之间的合作关系是此类研究的必要条件。因此，迄今为止只有少数研究对此进行了报道。然而，这种方法有望有助于揭示适应性行为的空间内变异，并为我们提供与行为进化相关的基本信息。在本项目期间，野生鼩鼱两次被困在冲绳多良间岛。捕获的动物被转移到我们的动物实验室并在那里饲养驯化。然而，我们未能获得足够的相关数据来分析本期的驯化效果，因为驯化不太成功。我们报告了我们在塔拉马诱捕九年（1980-1988）收集的数据以及实验室培育。数据显示，尽管高密度栖息地规模不断缩小，但野生种群数量并没有像估计的那样明显减少。然而，与其他品系相比，多良间的野生动物很难繁殖，这使得其驯化不太成功。饲养条件和饲养程序有待进一步改进。观察了家养鼩鼱的商队和交配行为，描述了这两种行为的基本特征。