慈竹和麻竹林间动物群落组成的调查与动态分布

调查竹林间动物群落的组成与动态分布是分析竹林间生态系统的重要指标。贵州赤水和乐山沐川两地竹林土壤的重金属含量差异很大[1],为研究土壤中的重金属是否会对竹林昆虫的种群密度造成影响,本研究通过对四川省乐山市大楠镇,贵州省赤水市大同镇2种常见竹种(慈竹,麻竹)进行了系统的统计调查,结果表明:沐川大楠镇慈竹动物群落隶属于4纲、16目、68科、103种;麻竹动物群落隶属于6纲、18目、70科、100种;赤水大同镇慈竹动物群落隶属于5纲、19目、70科、121种;麻竹动物群落隶属于5纲、18目、71科、106种。沐川慈竹、沐川麻竹、赤水慈竹、赤水麻竹分别有77.67%,77.00%,80.99%和78.30%的物种为稀有种或偶见种。沐川慈竹类群以蜘蛛目、直翅目、双翅目和半翅目为主,沐川麻竹类群以蜘蛛目、直翅目、双翅目和鳞翅目为主,赤水慈竹类群以蜘蛛目、直翅目、鞘翅目和半翅目为主,赤水麻竹类群以直翅目、蜘蛛目、鞘翅目和半翅目为主。4种类群植物性集团的丰富度和物种多样性均最高,赤水慈竹和赤水麻竹在群落丰富度、物种多样性和均匀度上都比沐川慈竹和沐川麻竹高,赤水两类竹子的优势集中度比沐川两类竹子低。

Investigation on Composition and Distribution Dynamics of Animal Community between Neosinocalamus affinis and Dendrocalamus affinis

The investigation of composition and distribution dynamics of animal community in bamboo forests are important indicators for analyzing the ecosystems in the bamboo forest.The contents of heavy metals in the soil of bamboo forest in Chishui and Muchuan are quite different.In order to study the effect of heavy metals in the soil on the population density of bamboo insects,a systematic survey was conducted on the two common species of bamboo(Neosinocalamus affinis and Dendrocalamus affinis)in Danan town,Leshan city,Sichuan province and Datong town,Chishui city,Guizhou province.The results showed that:In Danan town of Muchuan,Neosinocalamus affinis community belonged to 16 orders,68 families and 103 species;Dendrocalamus affinis community belonged to 6 classes,18 orders,70 families and 100 species;In Datong town of Chishui,Neosinocalamus affinis community belonged to 5 classes,19 orders,70 families,121 species;Dendrocalamus affinis community belonged to 5 classes,18 orders,71 families and 106 species.Neosinocalamus affinis and Dendrocalamus affinis in Muchuan,Neosinocalamus affinis and Dendrocalamus affinis in Chishui had respectively 77.67%,77.00%,80.99%,and 78.30%rare or occasional species.The Neosinocalamus affinis group of Muchuan mainly consisted of Araneae,Orthoptera,Diptera,and Hemipteran.The Dendrocalamus affinis group of Muchuan was dominated by Araneae,Orthoptera,Diptera and Lepidoptera.The main species were Arachnid,Orthoptera,Coleoptera,and Hemiptera in The Neosinocalamus affinis group of Chishui,and the species of Dendrocalamus affinis group of Chishui were dominated by Orthoptera,Arachnida,Coleoptera,and Hemiptera.The abundance and species diversity of vegetative groups of the four communities were the highest.Neosinocalamus affinis and Dendrocalamus affinis in Chishui were higher in community richness,species diversity,and evenness than Neosinocalamus affinis and Dendrocalamus affinis in Leshan,but the dominant concentration of Chishui bamboo was lower than that of Muchuan bamboo.