关键词: 四川短尾鼩, 种群动态, 空间分布格局, 繁殖

Abstract: Anourosorex squamipes Milne-Edwards is one of the dominant species of small mammals in Sichuan farmlands．Its population numbers varied with seasons in a year with two peaks，e．g．spring and autumn，the latter was a little higher than the former．The increasing and decreasing rules of population number in a year were divided into five periods, that is，potential period (Marchto April);active period (June，August and september; pausing period (July); rising and declining period (October to November) and ditto period (December，January and February)．
The distributive pattern of this animal in the fields was aggregative as individual group, but the relationship between the aggregation and population number was negative, when the population number was higher，the aggregative force was lower．The results indicated that no pregnant individuals of female had been found in December，January
and February，and the reproduction paused in these months．

Key words: Anourosorex squamipes, Population, Space distributive pattern, Reproduction