江苏棉旱田黑线姬鼠种群动态和分布规律的研究

STUDIES ON POPULATION DYNAMIC ANDDISTRIBUTION REGULARITY OF APODEMUSAGRARIUS PALLAS IN COTTON AREA

江苏沿海农区黑线姬鼠种群密度在全年的发生规律是一个双峰型曲线，第一峰在４月份出现，峰值较小，第二峰在９月份出现，峰值较大。黑线姬鼠在不同作物之间主要向食料和隐蔽条件好的作物栽培区转移，同一作物在播种期和成熟期间的鼠密度最高。同一作物在不同布局类型田块中对该鼠的吸引能力有很大差异。

The population density of of Apodemus agrarius Pallas is double peak curve in aroung sea Agri-cultural region of Jiangsu with all the year round.The first peak is in April with a smaller peak value. Thesecond peak occurs in September with a larger peak value. Most of Apodemus agrarius Pallas moved into theculture districts where there are suitable food and good hiding place,and high density occurs at sowing stageand ripening stage.The same crop has a great different attractive Apodemus agrarius Pallas with differentlayout and type.