Abstract: The seasonal dynamics of the musk shrew population had been studied in the reclaimed rural area of Xiaoshan，Zhejiang from April 1985 to December 1992．The results of the studies showed that the capture rate of musk shrew population varied seasonally with two peaks occurring in M ay and October respectively，the latter was higher than the former，The seasonaI variation on the breeding characteristics of the female musk shrew also could be found，and the higher pregnancy rate occurred in February and July．The mean litter size of the female musk shrew was higher in May to June and August to September,From the population fluctuation curves，we could know that the seasonal dynamics of the musk shrew population were different between field population and domestic population．In the field population，the peak capture rate occurred in April and September to 0etober．and in May and Ottoher in the domestic population．The pregnancy rate in the domestic population was obviously higher than one in the field population．In this paper，the difference on the seasonal dynamics between male and female population was discussed too．

Key words: Musk shrew, population dynamics, Seasonal variation

摘要： 1985年4月至1992年l2月。作者采用夹日法对萧山围垦农区臭鼩种群动态进行了连续逐月定点定时的研究．结果表明：臭鼩种群相对数量的季节消长呈后峰型双峰曲线，5月和10月各出现一次高峰，怀孕率在2月和7月各出现一次高峰，平均胎仔数在5-6月和8—9月相对较多。室外种群相对数量高峰在4月和9-l0月；室内种群在5月和10月，前峰不及室外种群明显。室内种群雌体怀孕率明显高于室外种群。种群相对数量的季节变化亦存在性别差异。

关键词: 臭鼩, 种群动态, 季节变化