重庆五里坡自然保护区地表无脊椎动物群落多样性

2006年5月至6月间,在设立的固定样带内,采用手拣法和陷阱法对9种植被类型,即马尾松纯林、常绿阔叶林、针阔混交林、农田、竹林、阔叶混交林、冷杉纯林、亚高山草甸、落叶阔叶林地表无脊椎动物群落特征与多样性进行研究.在收集的267个陷阱和45个土样中,共采集土壤无脊椎动物12 715只(其中未能进一步鉴定的标本234只),隶属3门11纲28目3亚目117科,优势类群为蚁科、长角跳科、疣跳科,分别占所采集的无脊椎动物数量的22.70%、11.87%和11.43%.地表无脊椎动物功能群中的菌食性、杂食性、植食性和捕食性在各种植被类型中所占的比例较大.多样性分析表明:植被类F类群数最多且多样性最丰富,植被类型E内地表无脊椎动物分布最均匀.Kruskal-Wallis检验表明:不同植被类型、不同陷阱中采集地表无脊椎动物个体数、类群数、多样性及均匀性差异显著(X个体数2=107.66,X类群数2=63.79,X多样性指数2=84.51,X均匀性指数=94.45,P<0.05).

Diversity of Ground-dwelling Invertebrate at Wulipo Nature Reserve Area in Chongqing

Aiming at studying the ground dwelling invertebrate characteristics and its diversity,the authors investigated ground dwelling invertebrate in fixed transect by pitfall traps and hand sorting methods at 9 types of vegetation,i.e.masson pine pure forest,evergreen broadleaf forest,mixed conifer and broad forest,cropland,bamboo forest,mixed broadleaf forest,fir pure forest,sub mountain meadow,hardwood and broad forest,at Wulipo Nature Reserve Area in Wushan,Chongqing from May to June 2006.12 715 individuals(23...