Objective To investigate the rodent species composition, density, and seasonality in different habitats based on the rodent surveillance program in Nanchang, China, so as to provide a basis for scientifically formulating rodent control strategies in Nanchang. Methods Three types of surveillance habitats including urban residential area, rural natural village, and special industry were chosen from 2017 to 2022. Rodent density was investigated by the night snap-trapping method. Descriptive methods were used to perform a statistical analysis of rodent species composition and seasonal variation of rodent density in three different habitats in Nanchang. With SPSS 26.0 and Excel 2021 softwares, descriptive methods were used to perform a statistical analysis of surveillance data, and the Chi-square test was used for comparison of rodent density across different years and habitats. Results A total of 104 121 effective traps were placed in Nanchang from 2017 to 2022, and 548 rodents were captured, with an average rodent density of 0.53%. The overall rodent density in the six years was statistically significant (χ2=34.857, P<0.001). A bimodal distribution with seasonal variation was found in the overall rodent density, the annual density of three dominant rodent species (Rattus norvegicus, Mus musculus, and R. tanezumi), and the rodent density in residential areas and special industry habitats, while the rodent density in rural natural village habitats showed a unimodal trend, with the peak in July. The rodent density in rural natural villages (1.56%) was significantly higher than that in special industries (0.45%) and than that in urban residential areas (0.30%) (χ2=304.340, P<0.001). The dominant rodent species in urban residential areas and rural natural village habitats were R. norvegicus and R. tanezumi, while M. musculus predominated in special industry habitats (47.47%). The composition ratio of R. norvegicus in special industry and rural natural village habitats was decreasing year by year; the composition ratio of R. tanezumi in urban residential areas showed a decrease after increasing, while it was generally increasing in special industry and rural natural village habitats; the composition ratio of M. musculus in three different habitats showed an overall increasing trend. Conclusions The rodent density varies greatly in Nanchang from 2017 to 2022. The rodent density showed a bimodal distribution with seasonal changes and was high in rural areas. Specific control measures should be taken according to the changes in rodent species in different habitats to reduce the rodent density and the risk of rodent-borne diseases.
FU Ren-long, CHEN Fei, LIU Yang-qing, TAO Hui-ying, MA Hong-mei, FAN Yi-bing, YANG Shu
. Surveillance based characterization of rodent density and seasonal variation in Nanchang， Jiangxi Province， China， 2017-2022[J]. Chinese Journal of Vector Biology and Control, 2024
, 35(1)
: 32
-35
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DOI: 10.11853/j.issn.1003.8280.2024.01.006
[1] 宋富成,修璟威,王伟,等. 2017-2021年青岛市国家级鼠类监测点监测报告[J]. 中国媒介生物学及控制杂志,2022,33(5):696-700. DOI:10.11853/j.issn.1003.8280.2022.05.015.Song FC,Xiu JW,Wang W,et al. Surveillance report on rodents at national rodent surveillance sites of Qingdao,China,2017-2021[J]. Chin J Vector Biol Control,2022,33(5):696-700. DOI:10.11853/j.issn.1003.8280.2022.05.015.(in Chinese)
[2] 李贵昌,王玉姣,鲁亮,等. 2019年全国鼠类监测报告[J]. 中国媒介生物学及控制杂志,2020,31(4):389-394. DOI:10.11853/j.issn.1003.8280.2020.04.002.Li GC,Wang YJ,Lu L,et al. National surveillance report on rodents in China,2019[J]. Chin J Vector Biol Control,2020,31(4):389-394. DOI:10.11853/j.issn.1003.8280.2020.04.002.(in Chinese)
[3] 闫青芳,赵洪林,姜健康,等. 山东省聊城市国家级监测点2018-2020年鼠类监测结果分析[J]. 中国媒介生物学及控制杂志,2022,33(1):100-103. DOI:10.11853/j.issn.1003.8280. 2022.01.018.Yan QF,Zhao HL,Jiang JK,et al. Rodent surveillance results of national surveillance sites in Liaocheng city of Shandong province,China,2018-2020[J]. Chin J Vector Biol Control,2022,33(1):100-103. DOI:10.11853/j.issn.1003.8280.2022.01.018.(in Chinese)
[4] 付仁龙,陈盛恩,夏金连,等. 南昌市安义县2009-2016年肾综合征出血热宿主动物监测结果分析[J]. 中国媒介生物学及控制杂志,2019,30(2):200-202. DOI:10.11853/j.issn.1003. 8280.2019.02.020.Fu RL,Chen SE,Xia JL,et al. An analysis of surveillance results of host animals of hemorrhagic fever with renal syndrome from 2009 to 2016 in Anyi county,Nanchang,Jiangxi province,China[J]. Chin J Vector Biol Control,2019,30(2):200-202. DOI:10.11853/j.issn.1003.8280.2019.02.020.(in Chinese)
[5] 郑卫青,柳小青,郭学俭,等. 南昌市鼠类种群结构和季节动态变化研究[J]. 中国媒介生物学及控制杂志,2011,22(5):446-448. DOI:10.11853/j.issn.1003.8280.2011.05.022.Zheng WQ,Liu XQ,Guo XJ,et al. Study of community structure and seasonal fluctuation of rats in Nanchang[J]. Chin J Vector Biol Control,2011,22(5):446-448. DOI:10.11853/j.issn.1003. 8280.2011.05.022.(in Chinese)
[6] 郭黄吉,冯丹,杨国军. 2015-2016年遵义市城区鼠密度监测分析[J]. 中华卫生杀虫药械,2018,24(3):264-266. DOI:10.19821/j.1671-2781.2018.03.014.Guo HJ,Feng D,Yang GJ. Rodent surveillance from 2015 to 2016 in Zunyi city[J]. Chin J Hyg Insect Equip,2018,24(3):264-266. DOI:10.19821/j.1671-2781.2018.03.014.(in Chinese)
[7] 张家勇,丁俊,白玉银,等. 辽宁省2006-2015年鼠类密度及种群结构分析[J]. 中国媒介生物学及控制杂志,2017,28(1):51-55. DOI:10.11853/j.issn.1003.8280.2017.01.014.Zhang JY,Ding J,Bai YY,et al. Analysis of rodent density and constituent in Liaoning province,China,during 2006-2015[J]. Chin J Vector Biol Control,2017,28(1):51-55. DOI:10.11853/j.issn.1003.8280.2017.01.014.(in Chinese)
[8] 赵奇,高丽君,唐振强,等. 河南省鼠密度监测及季节消长[J]. 中华卫生杀虫药械,2015,21(4):390-392. DOI:10.19821/j.1671-2781.2015.04.021.Zhao Q,Gao LJ,Tang ZQ,et al. Seasonal fluctuation of the rodent density in Henan province[J]. Chin J Hyg Insect Equip,2015,21(4):390-392. DOI:10.19821/j.1671-2781.2015.04.021.(in Chinese)
