【摘要】 根据对广东省境内褐家鼠２个自然种群的生态特征分析，发现褐家鼠分成５个年龄组别．除幼年鼠组外，其它年龄组的体重，秋季高于冬季．成年Ⅰ、成年Ⅱ和老年组是褐家鼠的主要繁殖群体．秋季的种群繁殖力明显高于冬季．秋季的种群，雌性鼠多，雄性鼠少；冬季的种群则雌性鼠少，雄性鼠多更多还原

【Abstract】 This paper analysed the ecology characteristics of two natural populations of Norway rat in Guangdong Province. They were divided into five age groups. The body weight of Norway rat was heavier in autumn than that in winter,except young group. Adult group Ⅰ, adult group Ⅱ and elder group were major reproductive colonies. The population reproductive capacity in autumn was more than that in winter. The autumn was more than the male female in,but less than the male in winter.更多还原