董利, 李贵昌, 王彬, 鲁亮, 赵宁, 宛新荣, 刘伟, 胡斌, 兴安, 李庆多, 李超, 王振旭, 张璐, 刘雨秋, 马德龙, 潘劲超, 何宏轩, 马伟, 刘起勇
. 内蒙古自治区东部草原鼠体寄生恙螨调查[J]. 中国媒介生物学及控制杂志, 2022
, 33(6)
: 873
-878
.
DOI: 10.11853/j.issn.1003.8280.2022.06.021
Objective To investigate the species composition and spatiotemporal distribution of chigger mites parasitized on the body surface of rodents in the grasslands of eastern Inner Mongolia Autonomous Region (Inner Mongolia), China. Methods The snap trap and cage trap methods were used to capture rodents in eight survey sites distributed in Xilin-Gol League, Hulun-Buir, and Tongliao of eastern Inner Mongolia in May, July, and September, 2021. Parasitic chiggers were collected from the body surface of the rodents. Then the specimens were made for morphological identification. The infestation rate (IR) and index of chigger mites (IC) were calculated for each survey site, month, and rodent species, and the statistical differences were analyzed using Chi-square test. Results A total of 1 232 chigger mites were collected from the bodies of 672 rodents, which belonged to three species of three genera of two families, namely, Leptotrombidium oblongatum, Multisetosa ochotonae, and Ascoschoengastia crassiclava. L. oblongatum was the dominant species, accounting for 97.02%. Their main hosts included Lasiopodomys brandtii, Meriones unguiculatus, and Cricetulus barabensis. These chigger mites were mainly distributed in two survey sites, i.e., New Barag Right Banner in Hulun-Buir and East Ujimqin Banner in Xilin-Gol League. They were active in May, July, and September, and showed an increasing trend with month. Conclusion There are few species of chigger mites on rodents in the grasslands of eastern Inner Mongolia. The dominant chigger species has a wide distribution, a long time of infestation, and diverse hosts.
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