南京紫金山山麓地区蚂蚁物种多样性研究

采用样地调查法研究了紫金山地区4种植被类型下的蚂蚁种群，共采集蚂蚁4 052只，隶属于2亚科14属15种。分析发现：针阔混交林内的蚂蚁种类最多为14种，林内物种多样性指数和均匀度指数均为最高，分别为2041 6和0773 6，优势度最低为0158 8，优势种为日本弓背蚁(占2480 %)、宽结大头蚁(占1798 %)、双针棱胸蚁(占1757 %)和黄足立毛蚁(占1431 %)。草地的蚂蚁种类有10种，物种多样性指数和均匀度指数均为最低，分别为1147 5和0498 4，其优势度指数为0413 4，仅次于阔叶林的蚂蚁种群优势度指数0415 1，其优势种为双针棱胸蚁(占5413 %)和宽结大头蚁(占3427 %)。紫金山地区4种植被类型下的蚂蚁种群相似性为中等相似。

Ant species diversity at piedmont of Zijin Mountain in Nanjing

Sample plot investigation method was conducted to survey the ant populations and species diversity under four types of vegetation in Zijin Mountain in Nanjing.4 052 specimens which belonged to 2 subfamilies,14 genera and 15 species were collected.Comparative results showed that species number of 14,species diversity index of 2.041 6 and evenness index of 0.773 6 were the highest in the coniferous and broad leaf forest,the dominance was only 0.158 8.The dominant species of ants were Camponotus japonicus Mayr...