有关蒙古毛足鼠的生态研究

Related several data of ecology for Phodopus campbelli

目的介绍蒙古毛足鼠的一些生态资料。方法 2007-2009年每年5、7、9月上旬,利用直线夹日法在内蒙古典型草原调查,捕获鼠称重、测量后解剖,记录繁殖情况。结果蒙古毛足鼠是调查区的优势鼠种,在群落中3年平均占38.14%,2008和2009年分别为56.29%和58.15%,解剖蒙古毛足鼠183只,其中雄性鼠84,雌性鼠99只,雌性比为54.10%。3年睾丸下降率分别为87.50%±17.53%、61.54%±29.15%和63.64%±0.13%。3年雌鼠怀孕率分别为16.67%±18.79%、30.77%±27.65%和17.65%±9.60%。结论蒙古毛足鼠是内蒙古典型草原的优势鼠种,其性比、睾丸下降率和怀孕率各年均不同。

Objective To introduce several data of ecology for striped hairy-footted hamster. Methods Carrying out the study on typical grassland Inner Mongolian in early May ,July and September during 2007 to 2009 by rectilinear-trapping method. The trapped rodents were weighed, surveyed and dissected, the breeding conditions was taken notes. ResuLts The striped hairy-footed hamster was the dominant species of rodents, which took up average 38. 14% ,which took up 56. 52% and 58. 15% in 2008 and 2009 respectively. A total number of 183 striped hairy- footed hamster had a number of 99 femades and took up 54. 10%. During 2007 to 2009, the average rate of testicle be- ing in serotum was 87.50% ±17.53% ,61.54% ±29. 15% and 63.64% ±0. 13% respectively. The average pregnant rate were 16. 67% ±18.79% , 30.77% ±27.65% and 17.65% ±9.60% respectively from 2007 to 2009. Conclusion The striped hairy-footted hamster was the dominant species of rodents on typical grasslamd Inner Mongolian. The sex ratio, the rate of testicle in scrotum and the pregnant rat were all different for every year.