川西农区小型兽类分布研究  

A STUDY ON THE DENSITY DISTRIBUTION OF SMALL MAMMALS IN THE FARMLAND OF WESTERN SICHUAN

作　　者：倪健英[1] 蒋光藻[1] 谭向红[1] 

机构地区：[1]四川省农业科学院植物保护研究所,成都610068

出　　处：《兽类学报》1991年第4期300-305,共6页Acta Theriologica Sinica

摘　　要：经3个监测点三年定位布夹监测数据分析发现,川西农区田间小兽的密度分布有明显的院落依托性,即离院落越近的农田中密度越高。分布模式呈Logistic曲线。家栖鼠(如褐家鼠、小家鼠)比野栖鼠(如大足鼠和黑线姬鼠)更集中于院落周围。不同季节的密度分布有显著差异,春、夏季多集中在离院落50—70米范围。秋、冬季别离院落越近,其密度越高。The surveillance data of fixed seat trap in threw plots from 1987 to 1990 has bean analysed. It indicated that the density distribution of small mammals in the farmland of western Sichuan varied greatly with the distance to the farmhouse, i. e. the closer to the farmhouse, the higher density of small mammals existed. The density decreased clearly with the distance away from the farmhouse. The distribution curve was a logistic curve. The house rodents were more concentrated to the house than field rodents and Sichuan short tail shrew. In the mean while, the density distribution varied with seasons, there were higher density in the distance between 50 meter to 75 meters from the farmhouse in spring and summer. In autumn and winter, the closer to the farmhouse, the higher density of small mammals presented.

关 键 词：兽类 密度 分布 防治 害兽 

分 类 号：Q959.808[生物学—动物学]