不同种类石斛园昆虫群落特征的研究*

 系统调查了4种不同种类石斛园昆虫群落组成及结构，应用群落特征参数分析方法分析了石斛园昆虫群落组成和结构的变化、群落特征及时间格局。结果表明，鼓槌石斛园昆虫群落结构不稳定，各物种数量、个体数量、群落多样性、丰富度及均匀度等指数随时间的变化波动较大；球花石斛园、束花石斛园和叠鞘石斛园昆虫群落结构相对较稳定。研究结果为石斛害虫综合治理和生态调控措施的制定及实施提供了理论依据。

Study on Insect Community Character in Gardens of Different Species Dendrobium

The insect community composition and structure in the gardens of 4 different species of Dendrobium were surveyed in Yunnan Province. The fluctuation of insect community composition and structure, community character and temporal patterns were analyzed by using analytical methods of the community character index. The results showed that, the insect community structure in Dendrobium chrysotoxum Lindl garden was relatively unstable, the species number, individual number, community diversity, richness and evenness indices fluctuated largely with the time change. The insect community structure in the gardens of Dendrobium thyrsiflorum Rchb.,Dendrobium chrysanthum Wallex Lindl. and Dendrobium aurantiacum RchbVaxdenneanum (Kerr) ZHTsi was relatively stable. The results provided the theoretical basis for the insect pest management and ecological control in the Dendrobium gardens.