Chines Journal of Vector Biology and Control ›› 2016, Vol. 27 ›› Issue (2): 117-120.DOI: 10.11853/j.issn.1003.8280.2016.02.006

• Original reports • Previous Articles     Next Articles

The population dynamics of small mammals in Three Gorges Reservoir hydro-fluctuation area, 2010-2014

CHANG Zhao-rui1, LU Liang2, GUO Yu-hong2, MAO De-qiang3, ZHAO Xin4, LIU Jing-li2, YANG Wei-zhong1, ZHANG Jing1   

  1. 1 Key Laboratory of Surveillance and Early-warning on Infectious Disease, Division of Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China;
    2 National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control;
    3 Chongqing Center for Disease Control and Prevention;
    4 Yichang Center for Disease Control and Prevention
  • Received:2015-11-10 Online:2016-04-20 Published:2016-04-20
  • Supported by:

    Supported by the Special Fund for Health Sector, People's Republic of China (No. 200802019) and Project of Ecological and Environmental Monitoring of the Three Gorges Engineering (No. JJ[2015]-007)

三峡库区消落区2010-2014年小兽分布特征分析

常昭瑞1, 鲁亮2, 郭玉红2, 毛德强3, 赵鑫4, 刘京利2, 杨维中1, 张静1   

  1. 1 中国疾病预防控制中心传染病预防控制处, 传染病监测预警中国疾病预防控制中心重点实验室, 北京 102206;
    2 中国疾病预防控制中心传染病预防控制所, 北京 102206;
    3 重庆市疾病预防控制中心, 重庆 400042;
    4 宜昌市疾病预防控制中心, 湖北宜昌 443000
  • 通讯作者: 张静,Email:zhangjing@chinacdc.cn;杨维中,Email:yangwz@chinacdc.cn
  • 作者简介:常昭瑞,女,硕士,副研究员,主要从事肠道传染病监测与控制,Email:changzr@chinacdc.cn
  • 基金资助:

    卫生行业科研专项(200802019);三峡工程生态与环境监测项目(JJ[2015]-007)

Abstract:

Objective To understand the distribution of rodents, dynamics of rodent density and composition in hydro-fluctuation area of Three Gorges Reservoir after experimental storage, and provide evidence for the risk prediction and control of rodent-borne diseases. Methods Four surveillance sites were set in upper, middle and down reaches of the Three Gorges Reservoir and surveillance were carried out twice after water drainage and before water storage every year. The small mammal density and the species composition in different regions, altitude and periods were analyzed. Results During 2010-2014, a total of 116 small mammals were captured and the average capture rate was 1.10% and on the decline overall. The captured small mammals were classified into six species. Apodemus agrarius was the predominant species accounting for 46.55% and Anourosorex squamipes was next with 25.86%. The average capture rate after water drainage (1.23%) was higher than that before water storage (0.90%). All captured small mammals distributed in all three altitude and the composition decreased from high to low latitude. The predominant species was different in three altitude. The predominant species in 166-175 m altitude was A. squamipes accounting for 44.45%, followed by Rattus tanezumi (18.52% ); In 145-155 m and 156-165 m altitude, Ap. agrarius was predominant species accounting for 84.00% and 72.97%, respectively. Conclusion The average capture rate was low and there was various species of rodent in hydro-fluctuation area. The density and species composition of small mammals varies with different regions, altitude and monitoring time. The host animals of hemorrhagic fever of renal syndrome, Leptospinosis and commensal rodent plague may be of risks in hydro-fluctuation area of Three Gorges Reservoir. It should be strengthened to monitor the host animals and take the corresponding control measures in the area based on the risk assessment.

Key words: Three Gorges Reservoir, Hydro-fluctuation area, Small mammals

摘要:

目的 了解长江三峡水库试验性蓄水以来库区消落区小兽分布特征及动态变化,为鼠传疾病风险预测及防控提供依据。方法 在三峡库区上、中、下游确立4个监测点,于每年的蓄水前期和退水后期开展小兽监测,对不同区域、不同高程、不同时期小兽密度及其构成变化进行分析。结果 2010-2014年,三峡库区消落区平均小兽密度为1.10%,小兽密度总体呈下降趋势。捕获的小兽分属于6种,黑线姬鼠为优势种,占捕获总数的46.55%,其次为四川短尾鼩,占25.86%;退水后平均小兽密度(1.23%)高于蓄水前(0.90%);捕获的116只小兽在3个高程均有分布,由高至低构成比依次减少,分别为46.55%、31.90%和21.55%;不同高程优势种不同,166~175 m高程以四川短尾鼩为优势种,构成比为44.45%,其次为黄胸鼠(18.52%);156~165 m和145~155 m高程以黑线姬鼠构成比最高,分别占72.97%和84.00%。结论 三峡库区消落区小兽密度较低,种类较多,小兽密度及其构成随不同区域、不同高程和不同监测时间而变化。该地区分布的小型兽类可能引起肾综合征出血热、钩端螺旋体病及南方家鼠型鼠疫等鼠传疾病,应继续加强鼠等媒介生物的监测,并采取相应的控制措施。

关键词: 三峡库区, 消落区, 小兽

CLC Number: