【作者】 董维惠； 侯希贤； 杨玉平； 王利清； 解永凤；

【Author】 DONG Wei-hui,HOU Xi-xian,YANG Yu-ping,WANG Li-qing,XIE Yong-feng (Grassland Research Institute,Chinese Academy of Agricultural Sciences,Huhhot 010010,China)

【机构】 中国农业科学院草原研究所；

【摘要】 目的研究呼和浩特地区历年鼠类群落多样性变化。方法 1984年至2007年每年4～10月中旬利用直线夹日法调查,利用香浓—威纳指数计算多样性指数,用皮洛公式计算均匀性指数。结果 1984～2007年布放364 697夹日,捕获鼠10 851只,共8种鼠。黑线仓鼠和长爪沙鼠为呼和浩特地区的优势种。结论各年度多样性指数和均匀性指数变化较大,多样性指数随着群落中鼠的种数以及黑线仓鼠和长爪沙鼠的优势度、群落捕获率和2个优势鼠种的捕获率而变化。更多还原

【Abstract】 Objective To study the changes of community diversity of rodents in huhhot desert during 1984 to 2007.Methods This study was carried out on different habitats in Huhhot area of Inner Mongolia in the middle the days of every month from April to October during 1984 to 2007 by rectilinear-trapping method.The index of community diversity and even index were calculated by the formula of Shannon-Weauer and Pielou respectively.Results A total number of 10 851 rodetns that belonged to 8 species were captured by 364 697 trap-days.Striped hamster (Cricetulus barabensis) and clawed jird(Meriones unguiculatus) were the dominant species in Huhhot area.Conclusion The index of community diversity and even index changed obviously every year.The change of community diversity index rely on the number of species and the dominat position of striped hamsterand clawed jird and the capture rates of the population and striped hamster and clawed jird.更多还原