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黑线毛足鼠年龄和种群密度与肝毛细线虫感染率的关系

宛新荣1;经宇1;王广和1;萨仁花2;罗建平2;关其格3;于成3;杜森云4   

  1. 1中国科学院动物研究所农业虫害鼠害综合治理研究国家重点实验室, 北京 100101;2内蒙古锡林郭勒盟草原站, 内蒙古锡林浩特 027000;3内蒙古锡林郭勒盟阿巴嘎旗草原站, 内蒙古阿巴嘎旗 026100;4内蒙古锡林郭勒盟东乌珠穆沁旗草原站, 内蒙古东乌珠穆沁旗026300

  • 收稿日期:2006-04-20 修回日期:1900-01-01 出版日期:2007-04-03 发布日期:2007-04-03

Relationships between Phodopus campbelli age and population density and Capillaria hepatica infective rate

WAN Xin-rong1; JING Yu1; WANG Guang-he1; SA Ren-hua2; LUO Jian-ping2; GUAN Qi-ge3; YU Cheng3; DU Sen-yun4   

  1. 1State Key Laboratory of Integrated Management of Pest Insects & Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China;2Xilinguole Grassland Station, Xilinhot 027000, Inner Mongolia, China;3Abagaqi Grassland Station, Abagaqi 026100, Inner Mongolia, China;4Dongwuzhumuqinqi Grassland Station, Dongwuzhumuqinqi 026300, Inner Mongolia, China
  • Received:2006-04-20 Revised:1900-01-01 Online:2007-04-03 Published:2007-04-03

摘要: 2004—2005年,在内蒙古锡林郭勒盟阿巴嘎旗和东乌珠穆沁旗研究了肝毛细线虫病对黑线毛足鼠种群感染情况,分析肝毛细线虫对黑线毛足鼠的感染率与鼠体年龄以及种群密度的关系。结果表明,黑线毛足鼠达到一定的年龄(或体质量)才可感染肝毛细线虫病,最低感染个体体质量为14。6 g。肝毛细线虫对低龄鼠的感染检出率比较低,而对成体鼠感染检出率较高,其感染率和感染度均随着个体年龄的增长而增高(感染率与年龄:r=0.97,P<0.05;感染度与年龄:r=0.93,P<0.05)。此外,黑线毛足鼠体质量与肝毛细线虫感染率和感染度也存在显著的相关关系(感染率与体质量:r=0.99,P<0.05;感染度与体质量:r=0.95,P<0.05),黑线毛足鼠的种群密度则对肝毛细线虫的感染率(r=0.27,P>0.05)和平均感染度(r=0.41,P>0.05)没有明显的影响,其感染率可能与地区不同有关。

关键词: 农牧交错带, 风蚀, 植被覆盖度, 土壤含水量

Abstract: Capillaria hepatica is one of the popular parasites to Campbell’s hamster (Phodopus campbelli). An investigation was made on the infection of C. hepatica on P. campbelli populations in Xilinguole, Inner Mongolia from 2004 to 2005. The results showed that there was a significant positive correlation between P. campbelli age and C. hepatica infective rate (r=0.97, P<0.05). Older age groups suffered more infection than relatively younger groups,while the juveniles were rarely infected. The infection index was also significantly positively correlated with age (r=0.93, P<0.05). Body mass was another indicator, which had significant positive correlations with both infective rate (r=0.99, P<0.05) and infection index (r=0.95, P<0.05). However, the population density of P. campbelli had no apparent correlation with the infective rate (r=0.27, P>0.05) and infection index (r=0.41, P>0.05).

Key words: Agro-pasture ecotone, Soil wind erosion, Vegetation cover, Soil moisture content