三种诱捕器对天牛科昆虫的诱集效率

Relative efficiency of three trap types for monitoring longhorn beetles(Coleoptera: Cerambycidae)

【目的】不同诱捕器类型可以有效诱集不同昆虫物种,为了更准确的判断某地区的物种丰富度,更高效的进行不同物种的诱集,开展不同诱捕器类型对昆虫诱集效率的对比研究是至关重要的。【方法】研究了档板、漏斗和马氏3种不同类型诱捕器在吉林省松花湖库区蒙古栎林中对天牛科昆虫的诱集数量和种类。【结果】在相同地点和相同时间段内,漏斗诱捕器共诱集189头天牛科昆虫、分属于4亚科、11属、12种;挡板诱捕器共诱集134头天牛科昆虫,分属于5亚科、15属、17种;马氏诱捕器共诱集99头天牛科昆虫,分属于4亚科、16属18种。从诱集到的物种丰富度看,诱集效率顺序为:马氏诱捕器>挡板诱捕器>漏斗诱捕器;从诱集到的个体数量看,诱集效率顺序为:漏斗诱捕器>挡板诱捕器>马氏诱捕器;从诱集到的优势种数量看,诱集效率顺序为:漏斗诱捕器>挡板诱捕器>马氏诱捕器。【结论】从成本和效率的综合因素考虑,在一般性天牛科昆虫调查和种群监测时,可以选择以联合使用挡板和漏斗诱捕器为主,马氏诱捕器辅之的调查设计,可达到高效且经济的调查天牛科昆虫的目的。

[Objectives] Insect traps of different designs can sample some species more effectively than others. In order to estimate regional species richness more accurately, and detect a variety of species more efficiently, it＇s important to determine the relative efficiency of different trap types. [Methods] We compared the quantity and species diversity of longhorn beetles captured in funnel, intercept and Malaise traps in Mongolian oak forest at Songhua Lake in Jilin Province. [Results] The funnel trap captured a total of 189 longhorn beetles（4 subfamilies, 11 genera and 12 species）, the intercept trap captured 134 specimens（5 subfamilies, 15 genera and 17 species）, and the Malaise trap captured 99 specimens（4 subfamilies, 16 genera, 18 species）. The relative ranking of the three trap types was, in terms of species richness, Malaise trap intercept trap funnel trap; in terms of absolute abundance, funnel trap intercept trap Malaise trap; and in terms of trapping dominant species, funnel trap intercept trap Malaise trap. [Conclusion] A combination of intercept and funnel traps, supplemented with Malaise traps, should be the most efficient and economical method for trapping longhorn beetles.