北京东灵山地区鼠类体外寄生虫群落种—多度分布

Species-abundance Distrbution of the Rodent's Ectoparasite Communities in Dongling Mountain in Beijing

目的 :了解北京东灵山地区鼠类体外寄生虫种类和数量分布情况。方法 :1998年 6月至 1999年 5月在该地区的 3类生境按常规方法共捕获鼠类 7种 5 68只 ,采集体外寄生虫 48种 3 85 9只 ,其中蚤类 16种 5 82只 ,蜱类 3种416只 ,革螨 2 2种 10 81只 ,恙螨 7种 1780只。结果 :3类生境鼠类体外寄生虫群落中低度物种 (个体数 <11)数多 ,约占总物种数的 5 8%～ 88% ,中度物种 (个体数在 11～ 10 0之间 )少 ,较富集物种 (个体数 >10 0 )更少。结论

Objective:To understand species-abundance distribution of the rodent's ectoparasite communities in Dongling Mountain,Western Beijing.Methods:Wild rodents were captured by snap-traps in three different ecological habitats in the region from June 1998 to May 1999.7 species of rodents,568 individuals were examined for ectoparasites,16 species of flea,3 species of tick,22 species of gamasid mite,and 7 species of chigger mite collected.Results:The species of ectoparasites with individuals below 10 accounted for 58%-88%,the species with middle individuals (11-100) were generally scarce,and a few species with high abundance (>100) could be seen in the ectoparasites communities.Conclusion:Species richness and abundance indices varied significantly in different types of ectoparasite communities among different hosts.