徐州泉山自然保护区昆虫群落研究

对徐州泉山自然保护区不同森林植被类型的昆虫群落进行了比较研究。在6种样地中共采集昆虫2220头,经分类鉴定有87种,分别隶属于10目43科。6种样地以林缘地带特有种最丰富,有30种。杂木林Ⅱ和林缘地带共有的种数最多,达到8种。侧柏林Ⅰ昆虫的优势种有3种,侧柏林Ⅱ、杂木林Ⅰ、杂木林Ⅱ和刺槐林的昆虫优势种各有2种。在6种样地之中,以林缘地带的物种最丰富,有43种;其次是杂木林Ⅱ,有26种。林缘地带的昆虫密度明显高于其它样地,为182.8头/m2,侧柏林Ⅰ密度次之,为106.8头/m2。多样性和均匀度最大者是杂木林Ⅱ,分别为2.769和0.850。优势度指数的规律正好与多样性和均匀度相反,以侧柏林Ⅱ最大。各样地间的物种相似性较小,除侧柏林Ⅰ与侧柏林Ⅱ间及侧柏林Ⅰ与杂木林Ⅰ间物种组成为中等不相似之外,其余样地之间物种组成均为极不相似。

Study on Insect Community of Quanshan Natural Reserve in Xuzhou City

Six habitat types of Quanshan natural reserve in Xuzhou city were classified based on vegetation difference,and their insect communities were compared through sampling investigation.2220 heads of insects belonging to 87 species in 10 orders,43 families were collected in 6 habitat type plots.The number of endemic species in forest edge district is the most abundant in 6 habitat type plots,having 30 species.The common species between miscellaneous wood forest Ⅱ and forest edge district are most,attaining 8 species.The dominant species in arborvitae wood forest Ⅰ are Eupolyphaga sinensis,Phloeaslnus aubel and Arocneria furva.The dominant species in arborvitae wood forest Ⅱ are Phloeaslnus aubel and Arocneria furva.The dominant species in miscellaneous wood forest Ⅰ are Eupolyphaga sinensis and Arocneria furva.The dominant species in miscellaneous wood forest Ⅱ are Episyphus balteate and Geisha distinctissima.The dominant species in forest edge district is Aphis robiniae.The dominant species in acacia wood forest are Cyclopelta parva and Scaeva selenitica.The species number in 6 habitat type plots has the following order: forest edge district(43 species) > miscellaneous wood forest Ⅱ(26 species) > arborvitae wood forest Ⅰ(18 species) > acacia wood forest(14 species) > miscellaneous wood forest Ⅰ(11 species) > arborvitae wood forest Ⅱ(7 species).Individual density of insect in forest edge district(182.8 heads/m2) is the highest,while that in acacia wood forest(10.6 heads/m2) is the lowest.Among 6 habitat type plots,miscellaneous wood forest Ⅱ has the maximum species diversity index(2.769) and evenness index(0.850),while the predominant index of arborvitae wood forest Ⅱ is the largest.Similarity coefficient of insect species among 6 habitat type plots is very small(0.00~0.45),indicating the species constitutes among 6 habitat type plots are not similar or very not alike.