安徽怀远石榴园节肢动物的群落结构

根据节肢动物群落中物种的营养和取食关系将总群落划分为天敌亚群落和非天敌亚群落(含害虫和中性昆虫),以调查到的节肢动物种类、个体数量结合各群落生态学指标分析总群落及亚群落的结构组成.共查得节肢动物55种分属47科;非天敌亚群落为总群落主要成分,相对丰盛度为0.8948,其中优势种为同翅目昆虫;天敌亚群落相对丰盛度为0.1055;优势种为蜘蛛类天敌.优势集中性和优势度分析表明非天敌亚群落＞总群落＞天敌亚群落;多样性分析表明天敌亚群落＞总群落＞非天敌亚群落.二者结果相符合,是由优势种种群数量较高造成的.

Community Structure of Arthropod in Megranate Garden in Anhui Province

According to the predator prey relationship,the total community of arthropod could be divided into two sub-communities:sub-community of natural enemy and nonnatural enemy.On the basis of investigation of groups,individual numbers and analysis of some other ecological indexes,the arthropods investigated in this garden belonged to 55 species of 47 families,nonnatural enemy sub-community was dominant in the total community,the relative abundance was 0.8948 and that of natural enemy sub-community was 0.1055.The analysis of dominant concentration and diversity indexes showed the following orders:sub-community of nonnatural enemy>total community>sub-community of natural enemy and sub-community of natural enemy>total community>sub-community of nonnatural enemy.