方法：采用夜夹法对野外和室内进行小兽密度和种群调查；
Methods:The night rat clip method was applied to investigate densities and species of field and in door rodent.
采用黑光灯引诱逐日调查的方法，研究了太行山低山丘陵区鳞翅目趋光性昆虫种群数量动态变化规律。
By the black light lamp lure and investigation day after day, the population dynamics of Lepidoptera phototactic insects in hill area of lower Taihang Mountain is studied.
方法自1959年以来连续在三峡库区宜昌段用夹夜法调查鼠类种群及密度。
Methods Sequential investigation into the density and population of rodents in the Yichang section of the Three Gorges area had been implemented with the trap-night method since 1959.
样线法是野生动物种群数量调查的常用方法之一。
The line transect methods are widely used in wildlife population census.
方法采用夹夜法调查鼠类种群数量，采用统计学方法对群落构成进行分析。
Methods Trap-at-night method was used to estimate the size of rodent community, and its structure was analyzed with statistical method.
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。
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.
方法药激法调查蟑螂密度及种群，询问法调查蟑螂孳生原因。
Methods Drug stimulating method is used to investigate the cockroach density and its populo-tion, and questionnaire was used to learn the reason of cockroaches breeding.
方法药激法调查蟑螂密度及种群，询问法调查蟑螂孳生原因。
Methods Drug stimulating method is used to investigate the cockroach density and its populo-tion, and questionnaire was used to learn the reason of cockroaches breeding.
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