四川小寨子沟国家级自然保护区社区蝶类资源研究

Research on Butterfly Resources in the Communities Around Xiaozhaizigou National Nature Reserve,Sichuan Province

【目的】为探明四川小寨子沟国家级自然保护区周边社区环境状况,对蝶类群落结构进行研究。【方法】于2018年7—8月,在四川小寨子沟国家级自然保护区周边每个社区设置1条样线,共10条,进行蝶类群落调查。【结果】共发现蝶类8科70属125种,其中蛱蝶科种类最多,有21属42种,占总种数的33.6%。多样性分析表明,该区域蝶类群落多样性较高,群落稳定。不同社区间蝶类群落相似度为极低或较低,说明蝶类对环境条件变化敏感,是良好的指示生物。区系组成分析表明,古北界和东洋界共有种占46.4%,东洋界种类占40%;古北界种类最少,占13.6%,与该区域所处南北过渡带地理位置相一致。【结论】四川小寨子沟国家级自然保护区周边社区蝶类资源较为丰富,反映了该地区良好的自然环境条件,而且表现出蝶类对栖息环境灵敏的指示作用。

【Objective】To explore the environmental condition,the butterfly communities were re⁃searched in communities around Xiaozhaizigou National Nature Reserve in Sichuan Province.【Method】From July to August in 2018,the butterfly communities were investigated from 10 line tran⁃sects in communities.【Result】A total of 125 butterfly species were found belonging to 8 families,70 genera.Among them,Nymphalidae was the dominant family,with 21 genera 42 species,33.6%of the to⁃tal species.The results showed that the butterfly communities were stable with higher diversities.The community similarity between different line transects was extremely low or low,which suggested that but⁃terfly was good indicator species because of its sensitivity to environment condition.Analysis of fauna composition showed that the proportion of Palearctic species,Oriental species,and Palearctic-Oriental species was 13.6%,40%,and 46.4%,respectively,which was consistent with the transitional zone of this region.【Conclusion】The butterfly resource was abundant in the communities around Xiaozhaizigou National Nature Reserve,which suggested that the nature environmental condition was suitable,and the butterflies were sensitive to the habitat.