关键词: 监测方法, 影响因子, 食饵法, 鼠夹法

Abstract:

　　【Abstract】　Objective　To analyse effect factors of trap method and bait method, and to discuss how to improve the accuracy of surveillance methods. Methods　Two methods combined with powder trace method were used in this study and its effect factors were analyzed. Results　The invalid areas surveyed by bait method accounted for 53%, suggesting that the inducement of sweet potato was very weak. Successful surveillance area accounted for 8% and 67% by trap method and powder?trace method, respectively, showing that the reason leading to the insensitivity of rodent to trap method was its strong repellence to new substance. Conclusion　There are many factors to affect the surveillance of rodent such as the repellence of rodent to new substance, the lure of baits, the abundance of food, the sensitivity of surveillance facility and the layout of surveillance sites. It is good to improve the accuracy of surveillance by single factor analysis.

Key words: Surveillance method, Effect , factors, Bait method, Trap method