四川鞍子河国家级自然保护区及邻近地区蚁科昆虫区系分析

为揭示四川鞍子河国家级自然保护区及邻近地区蚂蚁区系特征,2016年6—7月采用样地调查法研究了该区域的蚂蚁区系。结果显示:共采集蚂蚁6亚科32属62种;在世界动物地理界中,分布于东洋界的共32属,东洋界分布种最多(62种),新热带界种最少(3种);在中国动物地理区中,西南区种最多(62种),蒙新区种最少(4种);在种的分布型中,东洋-古北界共有种最丰富(36种,58.1%),东洋-古北-新北界共有种等3个分布型物种贫乏(1种,1.6%)。保护区及邻近地区蚂蚁区系具有东洋界向古北界过渡的特征,同时具有西南区、华南区、华中区、华北区成分汇聚特点,具有典型西南区特征。

Analysis of Ant Fauna in the Anzihe National Nature Reserve and Adjacent Area,Sichuan

To reveal the ant fauna character of the Anzihe National Nature Reserve(Sichuan)and its adjacent area,the ant resource was surveyed through plot-sampling method from June to July,2016.A total of 62 species belonging to 32 genera and 6 subfamilies were recognized,and then the distribution types and fauna component of genera and species were analyzed,respectively.In world zoogeographical regions,all the genera were distributed in the Oriental realm,62 species were distributed in the Oriental realm,while only 3 species were distributed in the Neotropical realm.In Chinese zoogeographical zones,62 species were the Southwest China species,and 4 were Inner Mongol-Xinjiang species.In the distribution types of species,Oriental-Palaearctic common species had the richest fauna(36,58.1%),while Oriental-Palaearctic-Nearctic common species and other 2 distribution types had the least(1,1.6%,respectively).It is concluded that the ant fauna of the reserve and adjacent area has a transitional character from Oriental to Palaearctic realm and a confluent feature of components from Southwest China to South China,Central China,and North China zones.