四川王朗自然保护区及邻近地区蚁科昆虫区系分析

Analysis of the ant fauna of the Wanglang Nature Reserve,and adjacent areas, in Sichuan, China

【目的】揭示王朗自然保护区及邻近地区蚂蚁区系特征。【方法】采用样地调查法。【结果】采集到蚁科昆虫5亚科,37属,77种蚂蚁,分析了属和种的分布类型和区系成分。【结论】王朗自然保护区及邻近地区蚂蚁区系具有东洋界向古北界过渡特征,同时具有西南区、华中区、华北区、青藏区成分高度汇聚特点。在属级水平上以东洋界、古北界分布属最丰富,东洋界分布属稍占优势,与新热带界关系最远。在种级水平上以东洋界分布种占优势,与古北界关系最密切,与新热带界关系最远。在中国动物地理区划中具有典型西南区特征,与华南区关系密切,与东北区关系最远。

[Objectives] To describe the ant fauna of the Wanglang Nature Reserve,and adjacent areas,in Sichuan Province.[Methods]The sample-plot method was used to collect ant specimens.[Results]77 ant species belonging to 5 subfamilies and 37 genera were collected,and their distribution,and the composition of genera and species,analyzed.[Conclusion]The ant fauna of the nature reserve and adjacent areas has a transitional character,from Oriental to Palearctic,and a composition characteristic of Southwest China,Central China,North China,and Qinghai-Tibet.At the generic level,Oriental and Palearctic genera were the most common with the Oriental genera slightly more predominant,and Neotropical genera the least common.At the species level,Oriental species predominated followed by Palearctic species with Neotropical species the least common.The ant fauna of the Wanglang Nature Reserve and adjacent areas has a composition typical of Southwest China,similar to that of South China but most dissimilar to that of Northeast China.