持续应用抗凝血剂15年家鼠群落结构变化的研究

目的探讨长期持续应用抗凝血剂灭鼠对鼠类种群结构的影响。方法1988～2002年持续应用抗凝血剂灭鼠,同时逐年调查鼠类种群变化情况。结果大规模灭鼠前,试验区以褐家鼠为优势鼠种;用敌鼠钠盐、杀鼠迷灭鼠后,小家鼠比例上升,成为优势鼠种;改用溴敌隆、大隆和鼠得克后,黄胸鼠成为优势鼠种,褐家鼠比例又明显回升。结论长期持续使用抗凝血剂能导致鼠类种群结构的变化。

Study on the Variation of Community Structure of Commensal Rodents After Continuously Applying Anticoagulant Rodenticides in 15 Years

Objective To inquire into the influence of continuous application of rodenticides on the community structure of commensal rodents. Methods Anticoagulant rodenticides were used to ontrol rodents from 1988 to 2002. Meanwhile, investigations were carried out on the variation of commensal rodents' community structure year by year. Results Before the large scale deratization, Rattus norvegicus were dominant in the community of commensal rodents. After the application of diphacine Na and bromadiolone, the number of Mus musculus began to increase and became the dominant species. While bromadiolone, brodifacoum and difenacoum were used, R.flavipectus became dominant and the number of R.norvegicus rose obviously again. Conclusion Long term application of Anticoagulant rodenticides can result in the variation of community structure of commensal rodents.