【摘要】 2007～2011年在锡林郭勒典型草原示范区(东乌珠穆沁旗恩和宝力格苏木)和对照区(锡林浩特市阿尔善宝力格苏木),对鼠类数量变动进行了监测。结果表明:对照区鼠类群落鼠种数多于示范区;对照区不同年份占群落捕获量比例较大的鼠种不同,而示范区大部分年份占群落捕获量比例较大的鼠种为黑线毛足鼠;对照区易形成危害的布氏田鼠数量2007年较高的时候,示范区相对低,仅在2007年9月出现,且该月布氏田鼠和黑线毛足鼠数量较为接近;对照区优势鼠种为布氏田鼠,示范区优势鼠种为黑线毛足鼠和长爪沙鼠;对照区短耳仓鼠和草原鼠兔呈极显著正相关,示范区布氏田鼠与五趾跳鼠呈极显著正相关;对照区5年中多样性指数、均匀性指数、丰富度指数各年变化的大小顺序一致,且均与优势度指数各年变化的大小顺序相反,而示范区5年中多样性指数分别与均匀性指数和丰富度指数各年变化的大小顺序不一致,且仅多样性指数与优势度指数各年变化的大小顺序相反。更多还原

【Abstract】 The number of rodent were monitored in demonstration area(Enhebaolige,Dongwuzhumuqin Banner) and in control area(Aershanbaolige,Xilinhot) during 2007~2011.The results showed that rodent species in control area were more than those in demonstration area.The species of rodent captured that had larger proportion in rodent community were different in control area in different years during 2007~2011.However,the species of rodent captured that had larger proportion in rodent community was Phodopus sungorus in demonstration area in most years during 2007~2011.The higher number of Microtus brandtii which was easy in danger in control area appeared in 2007.The number of Microtus brandtii was relatively lower,which appeared only in September and was closer to the number of Phodopus sungorus in demonstration area in 2007.The dominant species was Microtus brandtii in control area while those were Phodopus sungorus and Meriones unguiculatus in demonstration area.The number of Cricetulus eversmanni was highly significantly positively correlated with the number of Citellus dauricus in control area.The number of Microtus brandtii was also highly significantly positively correlated with the number of Allactaga sibirica in demonstration area.It was consistent with vary order of diversity index,evenness index,richness index and was all contrary to vary order of dominant index in control area in every year in 2007~2011.Vary order of evenness index and richness index was respectively not consistent with vary order of diversity index and vary order of diversity index was only contrary to vary order of dominant index in demonstration area in every year in 2007~2011.更多还原