三江平原典型湿地不同林型昆虫物种多样性研究

Insect diversity in different forests near the annular wetland of Sanjiang Plain

利用扫网,黄盘和巴氏罐诱法对三江平原典型环形湿地周围三个不同类型树林(岛状林,杨树林,松树林)的昆虫进行采集,经初步整理和鉴定,共采集标本24212号,其中昆虫20948号,分属于14目。其他的属于蛛形纲和多足纲。昆虫中种类最多的是双翅目和膜翅目,其次是弹尾目,同翅目,鞘翅目和缨翅目。在高的分类阶元(目)Shannon-wiener指数在松树林最高,杨树林最低。昆虫数量在各个林型中没有明显的不同。在这三个林型里面发现了长翅目蝎蛉,丰富了我国对于蝎蛉分布北限的记录,表明三江平原湿地区是我们昆虫多样性保护的一个重要区域。

We surveyed insects in three forest near the annular wetland by net - weeping, yellow - pan and Barber trap methods from June to September,2007. A total of 24212 arthropod were collected, of which 20948 were insects; belonging to 14 orders, the rest belonged mainly to Myriopda and Arachnida. Of insects , the most abundant groups were found to be Diptera and Hymenoptera, and next to them were Collembola, Homoptera, Coleoptera and Thysanoptera; We found that species number were not significantly difference at order level. From relatively higher taxa, i. e. order level, the Shannorl - wiener index were higher in pine forest than poplar forest and island forest; Some species were foundin three forest, which indicated that sanjiang plain wetland was a special area for species eonservation.