武夷山马尾松林冠与下木层节肢动物群落比较

对武夷山风景区马尾松林冠和下木层节肢动物群落2 a的系统调查。结果表明:2个林层有176种共有物种,物种组成的相似性极高,其中以鳞翅目、膜翅目、鞘翅目和双翅目的共有种居多。2个林层寄生性物种的相似率大于60%,捕食性物种的相似率大于80%,说明天敌在2个林层节肢动物的相互关系中起着重要作用。典型相关分析表明:2个林层间的节肢动物多样性关系密切,因此,保护林下栖境对于马尾松林害虫持续控制具有重要意义。

Comparison between the communities of arthropods in the canopy and the underwood of masson pine forest in Wuyi Mountain

Based on systematic survey of the structure of the arthropod community at 5 sample plots of the masson pine forest in Wuyi Mountain from 2005 through 2006,relationships between the arthropods in the canopy and the underwood in the forest were studied.The results showed that there were 176 common species in the 2 arthropod groups,and most of the common species belonged to Lepidoptera,Coleoptera,Hymenoptera and Diptera.However,similarity ratio of parasitic and predatory species between the 2 forest layers was more than 60% and 80% respectively,which implied that natural enemies played an important role in the interaction of the 2 forest layers.The canonical correlation analysis of the 2 groups indicated that their species diversity could closely relate.So it was much important to conserve underwood habitate for controlling of the pest in the pine forest.