【摘要】 目的对食饵法、鼠夹法等监测方法影响因子进行分析,探讨如何提高监测方法的准确度。方法利用粉迹法的特性,与食饵法、鼠夹法配合使用,对以上2种方法的影响因子进行独立分析。结果食饵法监测失败的区域占53%,说明红薯的引诱力不强致使敏感度较低;鼠夹法、粉迹法成功监测的区域分别为8%和67%,说明鼠夹法敏感度较低的主要原因是鼠对鼠夹有较强的新物反应。结论影响鼠密度监测结果的因素较多,可以分为以下几类:(1)监测器具对鼠的新物排斥反应;(2)食饵对鼠群的引诱力;(3)环境中食物的丰富度;(4)监测器具的灵敏度;(5)监测点的位置,另外还有些干扰因子。逐一对影响因子进行独立分析,有助于提高监测结果的准确度。更多还原

【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.更多还原