Methods Night trapping and feeding method.
方法采用夹日法、食饵法。
Methods The night trapping method was used to systemically monitor the species composition and seasonal density fluctuation of rodents at Daxie port from Jan. 2006 to Dec. 2010.
方法从2006—2010年，采用夹夜法对大榭口岸的鼠类种群的构成、密度、季节消长情况进行了调查。
At night a vast yellow barrier descends on the crossing, trapping latecomers inside.
夜晚，一个巨大的黄色屏障徐徐下降，将晚归者拦腰在外。
The trapping was carried on at different points of time at night and the insect was investigated on the basis of the distance of the light source from the grain heap.
并在夜晚按不同时间梯度诱集，同时还进行了光源距粮堆远近的虫口密度调查。
The trapping was carried on at different points of time at night and the insect was investigated on the basis of the distance of the light source from the grain heap.
并在夜晚按不同时间梯度诱集，同时还进行了光源距粮堆远近的虫口密度调查。
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