Basic characteristics of rodent comm unities in lakefront rice area of Dongting Lake
洞庭湖滨湖稻区鼠类群落基本特征研究

Rodent communities have been studied in Matangyuan,Yueyang County,Dong ting lakefront rice area.The rodent communities can be divided into four types,i .e. Apodemus agrarius Microtus fortis community in farmland(A),Microtus fo rtis Apodemus agrarius Rattus rosea community in hills(B),Microtus fortis commu nity i n lake beach(C),Mus musculus Rattus flavipectus Rattus norvegicus communit y in indoor(D).The structure of community A is similar to that of community B,and th ey are significantly different between years,but other community structures are significant difference .The diversity index of community B is the highest one(1. 619).The diversity and evenness indexes of community C are the lowest(0.052 and 0.033),but its dominance index is the highest(0.990).Evenness index of community D is the highest(0.721),but its dominance index is the lowest(0.407).