中国媒介生物学及控制杂志

• 论著 • 上一篇    下一篇

长尾大麝鼩的生态学特性与防制

王新华   

  1. 江苏省大丰市农业技术推广中心 大丰224100
  • 出版日期:2001-06-20 发布日期:2001-06-20

Study on Ecological Characteristics and Control Strategy of the Crocidura dracula

WANG Xin-hua   

  1. The Center for the Popularization of Advanced Agro-technics of Dafeng,Jiangsu,Dafeng 224100
  • Online:2001-06-20 Published:2001-06-20

摘要: 目的:研究苏北地区长尾大麝鼩的生态学特性及其控制措施。方法:1987~1992年选择2hm2旱作田一块,每月中旬用2号鼠夹采用夹夜法,捕获个体按作物地段记载,按性别体测、解剖。结果:年度平均密度4.98%,为我地农田小兽优势种群,4月、11月出现两个密度高峰,在田间活动趋向食料和隐蔽条件好的作物区。3~9月为雌兽怀孕繁殖期,平均胎仔数为5.51±1.3只,预计寿命1~1.5年。该兽为杂食性动物,取食何种食料与当时田间食源有关。以夜间活动为主,耐低温,会游泳,攀缘力差,洞中基本不储粮。采取农业和化学防制可以控制其数量。结论:我地是长尾大麝鼩的适生地区,该兽害大于益,是需要控制的对象,应采取标本兼治,防灭并举的综合措施,春播前或11月初用毒饵诱杀,对保苗和控病效果好。

关键词: 长尾大麝, 生态学特性, 防制

Abstract: Objective:The author researched into the ecological characteristics and controlling methods of the Crocidura dracula in Dafeng,northern Jiangsu.Methods:Trap night method was used and the Crocidura dracula were captured in a selected field of 2km 2 in the middle ten days of every month during 1987-1992.They were recorded according to where they were captured,and were measured and dissected separately according to sex.Result:The results showed that the average yearly density reached up to 4.98%.There were two peaks which occurred in April and in November separately in a year.They tended to live in crop fields where there were plenty of food and good hiding-places.The period of pregnancy and propagation lasted from March to September.The average fetus number at a birth was 5.51±1.3 and the estimated life-span was between1 and 1.5 years.The Crocidura dracula lived on varied kinds of food,depending on their food resources.They were active at night and may be controlled in both agricultural and chemical ways.The Crocidura dracula become one of the main animal population in Dafeng and they do great harm to our agricultural production.Conclusions:We must take measures to deal with them and our study shows that it is the best time to attract and kill the Crocidura dracula by using poisonous baits before spring sowing or at the beginning of November.