小寨子沟自然保护区步甲科多样性研究

Research on the Diversity of Carabidae in Xiaozhaizigou Natural Reserve

笔者于2002年7-9月在小寨子沟自然保护区共采到步甲标本720号,已初步鉴定出27属。以锥须步甲属Bembidion个体数量最多,199头,占总数的27.64%,婪步甲属Harpalus次之,124头,占17.22%。这些步甲采于六种环境下地被物、腐木、灯下、草堆下、水边,腐烂物等,以地被物中步甲的多样性指数最高。

This paper mainly deals with the diversity of Carabidae in the Xiaozhaizigou nature reserve,720 specimen of Carabidae, belonging to at least 27 genera, were collected from July to Septemeber of 2002. In the 27 genera, Bembidion is the superiority group in population, accounting for 27. 64% of the total of Carabidae. These specimen were all collected from six kinds of habitats： under the fallen leaves,in the decaying wood,in the rotted, in the lamplights,by the water, under the grass piles. Among these, the diversity index of specimen from the fallen leaves is the highest.