糖醋液和乙二醇对地表甲虫的诱集效率比较
Comparison of trapping efficiency for grounddwelling beetles by sugarvinegar mixture and ethylene glycol.
陈又清1**,李巧2,陈彦林2,王思铭1
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DOI：
作者单位：1中国林业科学研究院 资源昆虫研究所昆明650224; 2西南林学院 保护生物学学院昆明650224
中文关键词：陷阱法， 陷阱溶液， 鞘翅目， 捕获率， 紫胶复合生态系统
英文关键词：pitfall trapping, trap solution, Coleoptera, capture efficiency, lac agroforestry ecosystem
中文摘要：
2006～2007年分别以糖醋液和乙二醇作为陷阱溶液对天然紫胶林、人工紫胶林和旱地的地表甲虫群落进行了抽样。糖醋液诱到19科66种522头地表甲虫，乙二醇诱到19科68种690头；共同诱到29种，占全部种类的27.6%。糖醋液诱到的拟步甲、金龟、步甲个体数少于乙二醇，而糖醋液诱到的小蠹则多于乙二醇。天然林中，糖醋液诱到的地表甲虫个体数显著少于乙二醇，种类数无显著差异。结果表明：这2种溶液诱到的地表甲虫种类数接近，但乙二醇诱到的个体数多；使用单一溶液进行抽样往往会损失一定的多样性信息。
英文摘要： Grounddwelling beetle communities were investigated by pitfall traps filled with sugarvinegar mixture and ethylene glycol in natural lac forest, plantation lac forest and dry land during 2006~2007. Altogether 522 individuals were collected by the traps containing sugarvinegar mixture, representing 66 species in 19 families of Coleoptera, while 690 individuals were captured by traps containing ethylene glycol, representing 68 species in 19 families. There were 29 species captured by both solutions, comprising 27.6% of the total. More individuals of Tenebrionidae, Scarabaeidae and Carabidae, and less individuals of Scolytidae were captured by traps with sugarvinegar mixture than those with ethylene glycol. In the natural lac forest, traps with sugarvinegar mixture collected significantly fewer individuals and less species but not significantly than those with ethylene glycol. The results indicated that the trapping efficiency of ethylene glycol was a little better than that of sugarvinegar mixture. Some diversity information would lose when sampling only with sugarvinegar mixture or ethylene glycol.