闽南番石榴树冠节肢动物群落的结构和动态

The Structure and Dynamic of Arthropod Communities of Guava Orchards in South Fujian

2006年8月至2007年8月对惠安番石榴园树冠节肢动物群落结构特征及群落特征的时序动态进行了研究。结果表明,树冠节肢动物共采集到2纲、16目、100科总计218种,其中害虫116种、天敌61种、中性昆虫41种。害虫优势种为桔小实蝇Bactrocera dorsalis(Hendel)和棉蚜Aphis gossypii Glover,天敌优势种为细纹猫蛛Oxyopes macilentus L.Koch和大草蛉Chrysopa septempunctata Wesmael。节肢动物群落的物种丰富度、个体丰盛度、多样性指数、均匀度指数和优势集中性指数等特征随季节的更替发生波动。

The arthropod community structure and dynamics of guava orchards were studied in Huian County,Fujian Province from August 2006 to August 2007.The results showed that 218 arthropod species of tree crown were recorded,which belonged to 100 families of 16 orders in Insecta and Arachnoidea.Of them,116 species of pests,61 species of natural enemies and 41 species of neutral insects were included.The dominant pests were Bactrocera dorsalis and Aphis gossypii,and the dominant natural enemies were Oxyopes macilentas and Chrysopa septempunctata.The richness,individual,diversity,evenness and dominant concentration of arthropod community index fluctuated with the change of season.