长爪沙鼠的肝毛细线虫感染率与鼠类及猛禽密度的关系

发布时间：2018-06-19 16:38

本文选题：长爪沙鼠 + 肝毛细线虫　；参考：《动物学杂志》2017年06期

【摘要】：为研究鼠类密度和猛禽密度对鼠类肝毛细线虫(Capillaria hepatica)感染率的影响,作者于2004年7月在内蒙古锡林郭勒盟阿巴嘎旗北部和东乌珠穆沁旗西南部典型草原草场选取了14个实验样地,采用洞口计数法(四分之一圆面积法)调查估计各实验样地内长爪沙鼠(Meriones unguiculatus)密度,同时采用夹线调查法捕获鼠类样本,进行常规解剖获取肝毛细线虫的感染数据。采用目测计数法统计猛禽的出现频次,并以其出现频次作为猛禽的相对密度指标。实验样地共捕获长爪沙鼠1 058只,观察到鹰隼类活动69只次。数据分析结果表明,长爪沙鼠肝毛细线虫感染率与鼠类密度之间存在极显著的正相关关系(P0.01,R~2=0.926),长爪沙鼠肝毛细线虫感染率与猛禽密度之间亦存在极显著的正相关关系(P0.01,R~2=0.853)。该结果说明,长爪沙鼠是肝毛细线虫的主要宿主,鼠类密度和猛禽密度的升高均会增加长爪沙鼠肝毛细线虫感染率,猛禽密度和鼠类密度之间还存在叠加效应,猛禽的捕食作用会加快肝毛细线虫病的传播周期,加重肝毛细线虫病疫情。
[Abstract]:In order to study the effect of rodent density and raptor density on the infection rate of capillaria hepatic nematode in rats, 14 experimental sites were selected in July 2004 in the north of Abagah Banner and the southwest of East Uzhimuqin Banner in Xilinguole League, Inner Mongolia. The density of Meriones unguiculatuswas estimated by hole count method (1/4 round area method), and the infected data of liver capillary nematode were obtained by routine dissection. The occurrence frequency of raptor was counted by visual counting method, and its occurrence frequency was used as the relative density index of raptor. A total of 1,058 gerbils with long claws were captured and 69 activities of Falcon were observed. The results of data analysis showed that there was a significant positive correlation between the infection rate of liver capillary nematode and the density of rodents. There was also a very significant positive correlation between the infection rate of nematode in liver and the density of raptor. The results showed that the gerbils were the main hosts of hepatic nematode, and the increase of rat density and raptor density increased the infection rate of hepatic nematode, and there was a superposition effect between the density of raptor and the density of rodent. Predation by birds of prey speeds up the transmission cycle of hepatic capillariasis and exacerbates the epidemic situation of hepatic capillariasis.
【作者单位】：中国科学院亚热带农业生态研究所;吉首大学生物资源与环境科学学院;内蒙古锡林郭勒盟自然保护区;内蒙古锡林郭勒盟阿巴嘎旗疾病预防控制中心;
【基金】：农业部农业技术试验示范专项(No.13162130108221904)
【分类号】：S858.91

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