关键词: 鼠形动物, 体外寄生虫, 群落组成, 带虫指数, 带虫率

Abstract: Objective:To ascertain the number,density,composition,distribution of murine-like animals and their ectoparasites on Nanao and Nanpenglie Islands.Methods:Murine-like animals were traped and theirs parasites were collected in equidistance method,and classify,identification,statistics.Results:On the Nanao Island,the density of murine-like animals was 23.47%,they consisted of 7 species belonging to 3 genera,2 families and 2 orders,6 species belonging to Muridae of Rodentia,1 species belonging to Soricidae of Insectivora,the proportion of Rattus flavipectus was 42.61%,the parasitic chiggers consisted of 5 species belonging to 3 genera,2 families and Leptoerombidium diliense was 65.09%,gamasid mites consisted of 3 species belonging to 1 genera,1 family and Laelaps muttalli was 58.51%,ticks consisted of 2 species belonging to 2 genera,1 family and Ixodes granulatus was 65.49%,fleas consisted of 3 species belonging to 2 genera,2 families and Xenopsylla cheopis was 67.77%;as far as the parasite carrying index and carryying rate were conceried,chiggers mainly affected R.norvegicus and R.confucianus,theirs were 37.78 and 34.38,75.51% and 62.50%,gamasid mites mainly affected R.confucianus and R.fulvescens,theirs were 4.38 and 4.10,75.00% and 70.00%,ticks mainly affected R.coxingi,was 3.50 and 66.67%,fleas mainly affected Mus musculus and R.confucianus,theirs were 3.20 and 3.04,80.00% and 53.85%.On the Nanpenglie Islands,the density of mice was 34.58%,they consisted of 2 species belonging to Muridae of Rodendia,the proportion of R.flavipectus was 42.61%,the parasitic chiggers consisted of 3 species belonging to 3 genera of 2 families,gamasid mites consisted of 2 species belonging to 1 genera and family,ticks consisted of 2 species belonging to 2 genera of 1 family,the proportion of R.flavipectus,L.deliensis,L.muttalli,I.granulatus and X.cheopis were from 98.60%,82.69%,51.81% to69.70%.Conclusion:On the Nanao and Nanpenglie Islands,many murine-like animals and their ectoparasites,the dominating species were L.deliensis,L.muttalli,I.granulatus and X.cheopis.